
Latest update for this News / Blog section - October 0908
| NEWS | ||||
| Nov. 0208 12:41 PM |
My 27 years of waiting, could finally be over later today!
Since 1st hearing Tangerine Dream (Ricochet) in the Summer of
1981, have I wished for a sequencer that would allow me to operate in
similar ways, to the Moog 960 that TD was known for using. My
Quadatrix 4x4 Sequencer that I've designed is capable of doing at LEAST
what the Moog 960 is capable of, as well as much, much more. ![]() I've just finished doing very VERY minor touch-ups, on my 2nd successfully Press N Peel PCB. This one, is the VERTICAL Sequencer, for my Quadatrix 4x4 Semitone Sequencer. (My 1st successful PnP PCB done 2 days ago, was the 1st of 4 sets of 4 step sequencers for the Quadatrix 4x4 Octave Sequencer - mounted and working succesfully. )Once I get the Vertical Sequencer mounted into the Semitone panel, I will for the first time be able to cycle BETWEEN the 4 sets of 4 step Semitone Sequencers. (3 of the 4 are completed). With the MFOS Sequencer acting as the step sequencer, this will allow my to access any of the 16 steps in each of the Semitone and Octave sequencers, in ANY order that I wish. (Each of the Semitone (Semiblock) and Octave (Octablock) Sequencer sets, will have their own Vertical Sequencers as well.) Each of the Vertical Sequencers have 8 inputs controlled by 3 digital input bits, to choose at what time any of the 4 sets, will play back. At the same time, the 2 digital input bits for each of the sets, allow control over which of the 4 steps will play, at what time. It's early in the day and there're yard chores to do. If all is successful though, I hope to have the 1st Vertical Sequencer installed and working by this evening. When I do, I'll shoot a short video for posting at my Youtube (Dolphinicus) site. ![]() |
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| Oct. 1808 2:04 AM |
A few little bits of News and updates: - I've decided to change my PCB construction from by-hand, to Press N Peel. I had used that product very successfully in the mid 1990s. Earlier today I ordered 5 sheets of it from AllElectronics and went out and bought a Samsun ML-2510/XAA monochrome laser printer. I started converting the schematic for a 4 step set of rotary switches in Express PCB's Schematic software, yesterday. This weekend, I hope to get the PCB of this module completed, in Express's PCB layout software. Once I get the PCB layout done in Express, I'll be able to use that PCB for the Semitone as well as Octave rotary switch setups. This will be a BIG savings in time, as each PCB for 4 rotary switches, would take approximately 1 hour to do with permanent marker. Once the layout is completed in the computer, each PCB, will take about 5 MINUTES to do! ![]() - Earlier in the week, I got most of the setup completed, for the 3rd of 4 set of 4 step Semitone rotary switches done. All I have to do now is put a few parts on the PCB and wire it all up. About 2 hrs. more of work. ![]() - Once I have all 4 sets of the 4 step sequencers completed, will I think finish the 8 input multiplexer board. Finally, that will allow me to run all 4 sequencers, in any direction / combination of rotary switch steps, that I wish to. ![]() Once that's completed, will I then start on the 4 sets of 4 step Octave sequencers, along with their 8 input multiplexer. - Once the 4 semitone 4 step sequencers and multiplexer are completed though, I'll be shooting at least 1 video showing how everything works, to give all viewers out there, a much clearer idea. |
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| Oct. 0908 1:34 PM |
Anyhoo ....... hoping to get this little news bit typed out before the computer shuts itself down unexpectedly ...... As of 2:40 p.m. on October 0808 - the 2nd set of 4 steps of 1V/octave semitone rotary switches in my Quadatrix Semiblock panel, was up and running!
I had barely enough time to listen to them together, let alone
set things up properly so each of them could play independant
sequences, but the THRILL man! ![]() 1 step closer (out of a total of 8 portions of 4 step sequencers) to the beginnings of my dream! ![]() Once I get each of the 4 rotaries in the 2nd one perfectly tuned, as well as my 2 x Master Dividers hooked up again, I'll be able to play any combination of the 8 notes that I wish and am able to, with the rest of my sequencer controller apparatii. ![]() Of COURSE the goal is to have 4 x 4 step semiblocks and 4 x 4 stop octave blocks (octablocks). That's a couple of weeks away though. I have now, only 3 more 12 position rotary switches. Each of them are salvage from my last attempt, as well as at LEAST 10 years old. Corrosion is plaguing at least 1 of them. I DO have 6 x 12 position switches coming in from China though. If their quality is decent enough for me, I'll more than likely be placing an order for 100 of them. Working out to $1.28 each - is FAR cheaper than the $5.75 that I have to pay locally. ![]() ![]() Anyways - the tuning that I had gotten done in the 2nd one, prior to hooking it up to a VCO for final tuning, was more than good enough (except for a single note, on 1 rotary) to have both of the 4 steps playing a dual melody together in almost perfect tuning - 2 x VCOs, into an ADSR controlled VCF / VCA combo. Pleasure Principal? After 27 years of wanting a sequencer simliar to this - the Pleasure Principal description is a STRONG UNDERstatement! Just wait until all 4 of each are up and running! Then, the compositional fun will begin. ![]() Oh yeah. Another bit that I were pleased to find - when I went to do a count to see how many rotary switches that I had in stock, for my 4 x 4 step octablock panel - I very surprisingly found 16 (as needed) x 3 position 4 pole switches! That gives me 3 octaves for the switch instead of 4 but HEY! I bought them longer ago than I can remember for gawd knows what - now, they'll finally have a use! ![]() For the PCBs, that I'm going to do for the octablock, I'll be laying out each of the 4 sections individually, rather than all together on 1 huge PCB. (Each PCB will consist of 1 x LM324 quad opamp; 1 x CD4052 dual 4 bit multiplexer and 1 x LM358 dual opamp along with 4 LM336 2.5V references and 4 trimmers. (And resistors for each). And that's it. It'll be much easier to assemble on individual boards, rather than on the 1 for everything. There'll also be a fifth board, for the CD40106 support circuitry as well as the pair of CD4051 8 input multiplexers for plugging the 4 sections into, as well as displaying by LED which section is currently active. (The CD4051 section, is for the VERTICAL sequencing of steps, whereas the CD4052s are for the HORIZONTAL sequencing of steps.) Whilst I now think of that - I'm going to go off to the Design section and start working on a full description OF the Quadatrix Sequencer. ![]() |
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| Oct. 0608 11:37 PM |
(In the infamous
Twilight Zone creator Rod Serling's voice: ) "Imagine if you will - the
pleasure center in an oldde, younger man's brain; switched permanently
on. "That were the sensation that Ryk John Miller Thekreator experienced, if only - for a little while - on this day in the year of two thousand and eight. (puff; puff again on his cigarette) "You see - since the year of 1981, Ryk had been experiencing the most intense desires for a sequencer with which he could make; melodies and bass lines similar to the German band known as Tangerine Dream. "Folly he did; stumbling continuously in his erroneous ways, over the years in every single attempt to create such a sequencer." October 0908 ...... error. The above news was cut short, by my computer shutting itself down, once again.
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| Sept. 1908 10:16 AM | Various news bits: - My first recording studio (direct to HD) since 2001 is finally up and running.
Getting a 48 jack Neutrik patch bay last week, helped immensely,
as well as with setting up the computer for recording and playing back
audio.- Development finalization is almost done with the PCB for the Liquid Hihat. ![]() - My 2nd attempt at getting "another person's" (name withheld) shrinkage of the Ken Stone VCO down to the Sawtooth waveform only, has failed again. I'm going to be ripping out every part placement of his and doing my own version, which has now been successful, twice. I'll be posting the revision that I'm using, to the schematics section after I get my 2nd edition of it completed. As well as with the other person's, I amplify and shift the +5VDC Sawtooth waveform to +/-5VAC (10vpp). This is the 2nd of my 2 x Ken Stone Bi-N-Tic's converted to VCO only. Also - I just realized, this gives me VCO #5!
I haven't had that many VCOs in a modular since my huge Bert
& Ernie modulars, in the late 90's. (They had 6 x VCOs).- Earlier this week, I got all of the PCB for the 2nd Gate Sequencer in my G.I.M.P. - Sequencer Engine, installed. I was about to start installing the PCB behind the panel when I realized that I am almost completely out of LEDs! ![]() I placed an order for them yesterday and should have them next week.I was GOING to purchase my 1st PINK LEDs, until I saw that they're not super-bright LEDs. Due to the amount of current that standard LEDs use, I stopped using them, over a year ago.- I'm also in the beginning stages of deciding whether to purchase the audio / MIDI sequencing software - Reaper. I'm a former Cakewalk owner / fan, who hasn't been very impressed with their latest versions, looking to switch / missing the old days of Cakewalk 4.0 for DOS. ![]() - I've purchased my first of possibly MANY MIDI to CV converters from Marc Papareil Synth Labs - the MCV876. It requires 4 of the DAC0831, or DAC0830 or DAC0832 chips. Luckily, I found 28 of the DAC0831 through my local supplier at only $3.50 Canadian, EACH! I ordered 12 of them.
They should be here within a week. Once that PCB is
completed (should be here in a week also), that will give me 8 channels
total of MIDI to CV conversion. |
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| Sept. 0808 12:53 AM |
My first as yet unnamed 'studio' shall be coming live later today. ![]() Official permissions were received earlier tonight to rearrange items that are in my way. The pool table room in which my workshop shares the space, currently prevents me from setting up my growing modular as well as support gear properly. Now with permissions to move some antique furniture out of the pool room, I'll finally have the extra square footage that I'll need. This will be the first working 'studio' that I've had since 2001. Though with not as much square footage as I would like to have, I'll finally be able to move the 2 modular synth's cabinets to stand beside the workbench. This will allow me to setup my support cabinet beside the modular's cabinets as well as my new (used) sequencer; keyboards and computer - all together for the first time in 7 years.
This may seem like nothing to many of the readers out there, but
try being withOUT it for a few years when you're wishing to compose!
![]() On a related note: I got my 3rd of 4 VCOs installed into the new panel and tuned to within 0.25% over 4 octaves. It's fine for now at least matching the other 3 VCOs that I have up and running. This 3rd VCO in the panel, is the VCO portion ONLY of my Bi-N-Tic. I added the extra circuitry required to shift and amplify the Sawtooth waveform from +5V to +/-5V (10VPP). There's still another adjustment to be made though, as the top of the waveform is a little rounded off, somewhat softening the output of the waveform. The 4th VCO for this panel will be the VCO portion ONLY of my 2nd Bi-N-Tic PCB, bringing my VCO total up to 5. Just for kicks and to start getting back into the feel of using the Alesis MMT-8 sequencer, I roughly recorded the bassline and melody for the verses and chorus of Kraftwerk's tune "The Model". Big smile right across my face.
More work to be done in building more modules, but finally, I'm
able to start working on music, seriously, with my modular. 3 years it's been in doing nothing much more than building (on and off). The opening of the new 'studio' as well as finally being able to start composing again also, comes right after yesterday realizing that this year is my 30th Anniversary of being a 'punk rocker'. Who knows where I'll be going in writing tunes - but I shore intend to have fun with it! ![]() ![]() Enough rambling for now. Smiles to everyone. ![]() ![]() |
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| Sept. 0408 12:45 AM |
Various bits of news:
Now that I have a hardware sequencer again, finally (preferring to NOT use computer software any more), I'll be able to start composing on hardware for the 1st time since 2001. ![]() ![]() Working mainly with my modular (for solo voices; percussion and sound effects) I'll be vearing away from the hugely layered compositions that I've been well known for since the late 80's - more towards space between instruments. NOT minimalism but definately not hugely layered. I guess I'll find out as I start composing, where I'm headed. Outside of 'ambient' related genres and noise, I haven't consciously chosen any genre set to work within. Times change. Where I'm going with composition, I haven't yet a solid idea, but I know it'll be fun and challenging. ALso - time signatures mixed together - here I COME! ![]() |
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| Aug. 2408 4:18 PM |
I
just finished the panel for my 2nd main power supply. Being
power related, I thought I would draw things related to power
generation. Soon after I started that earlier in the week, I
have finally made my first panel dedication that I have been intending
to do for the last 3 years. Early in drawing ideas on the panel, I decided to dedicate the panel to my adoptive dad (from 8 mos. age and on) - Stephen John Miller (Jack - born on April 4th, 1926 in Melfort, Saskatchewan.) R.I.P. dad. Thanks for starting my interest in electronics in about 1969, when I was 6 years old and teaching me how to draw a choochoo train when I was about 4. ![]() Later into the panel having just read very cool bits on the history of PAiA Electronics and reading in 2 places that President John Simonton had created the very 1st PROGRAMMABLE drum machine in 1976 and remembering the great email conversations and help for my 2 x PAiA 4700 series modular systems that I owned in 1992 to 1993, with John - I decided to also dedicate the panel to him - in great thanks and respect to him as well. R.I.P. John. Thanks for starting my interest in modular synthesizers in 1973 and all that you've done over the years. ![]() |
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| Aug. 1808 2:25 PM |
***
MUST BE 18 OR OLDER TO VIEW THE FOLLOWING IMAGE! ***
Good day ladies and gents!
(I'm sorry but, kids are no longer allowed to view my entire
modular synthesizer.
)Late last month I thought I would make a new panel for combining my VCOs into instead of having them spread across other panels mixed together with other modules. I settled on the 3U (5 1/4 inch height) as that gives me a comfortable amount of room for 4 rows of controls as well as at least 4 rows of banana jacks. In trying to come up with an idea for what type of picture I would draw for the panel, after a lot of thought it occurred to me that I wished to create a panel for 4 VCOs - or in another term - 4 voices ...... Voices ...... Hmmmm ...... (Yes ......
spreading out the distance from the top of the screen, to
hide
the panel's picture from immediate viewing possibility.
)Voices, are something related to humans ...... Humans! Voices? CHOIR?? YES! ![]() ![]() As with my usual off-centre / mildly twisted self, I decided to draw 4 people sinnnnnnnging away to represent 4 VCOs, or, voices. ![]() Not being too much a fan of acapella, I thought I'd give them some accompaniement as well - hence, the pipe organist with his pipe organ and it's pipes in the background. (Clicking on the pic of course, will open up a larger version of the pic in a new window. Depending on your browser type, you may be able to click on the new version of the pic to see it in its full photographic digital glory.
)(Reflecting overall: ) In other related news, looking at this area of my modular I came to realize that my 3 VCOs were in different panels. I also have a panel in my synth with a LOT of extra holes in it that aren't being taken up by any controls. (This to me, looks quite ugly, in my modular.) The panel with all of the extra holes was originally made for a VCO as well as the Ken Stone Bi-N-Tic module, with a modification that I had come up with, using 2 VCAs for control of the each of the Bi-N-Tic's Filter Cutoff controls. (This modification DID work, very well.) I hadn't been fully happy with the sonic capabilities of the Bi-N-Tic myself - not finding them useful in the area of sound that I MYSELF were wishing to pursue, so I removed the Bi-N-Tic completely, from my machine. Removing the Bi-N-Tic left me with a LOT of extra holes for controls in that panel. Since the removal, building other modules, I never HAVE been able to come up with a use FOR all of the extra holes. ![]() Knowing that I would need a 4th VCO for this panel as I'm currently down to 3 VCOs, having destroyed my Tom Gamble VCO 4D - (That VCO had survived for about 2 years, before yet another of it's bugs killed it.) - I realized again, that I have a working VCO, INSIDE of the Bi-N-Tic module! Sooooo - this past weekend, I removed all of the VCF parts from the Bi-N-Tic and powered the remaining module up. No problem! There I have a +/- 2.5V sawtooth VCO.
All that I have to do is buffer the VCO output, changing it's
amplitude to +/- 5V and it will have the same amplitude as my other 3
VCOs - giving me, my 4th VCO for my new panel. ![]() I'll have to come up with another panel for 4 VCOs as well, as I still have 3 more PCBs (1 of them being a 2nd Bi-N-Tic) of VCOs to build. Anyway - I'm rambling in my usual endless babble, with only 3 hours left before I have to leave for work. I'd best shut my fingers down afore I carry on for too much longer. ![]() ![]() Before I go though, a couple of more bits of news: Further update on the G.I.M.P. - S.E.: more progress has occurred, of course. The current modules that are now working within it are:
Whilst at work last night, thinking over on the KAOS and it's design, I came to a new idea, which could FINALLY be the answer that I have been looking for in one module that I've wanted now for 16 years! A multistep envelope generator with Sustain! I came up with a couple more modifications for the KAOS, that would allow the user to switch or patch, which of its 4 channels are cycling back to the beginning of the LFO's charging state. This would give the user yet another variation possibility in the waveforms that are produced. The other modification idea, thinking along the lines of using the module as an EG, is how to do a Sustain portion for an Attack Sustain Release EG. The solution for that came almost immediately - in THEORY. I will still have to lay out this idea on a breadboard for testing, but - IF it's successful - the formerly named KAOS VCLFO / VCO will then be named: The Day of The Jackal VCLFO / VCO / EG! (Named in respect to the excellent book written many a year ago telling the story of the chap who were excellent at creating disguises for himself). More bits on this whether or not successful, once the testing begins. ![]() Right then - off to work on getting power supply #2 mounted to it's panel. |
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| Aug. 1008 7:16 PM |
Back
from vacation in Calgary, Alberta over the last 7 1/2 days.
Had a wonderful time touring through 100's of kilometers of
the Rockies seeing the coolest things.Also bought a new (2nd hand) effects unit - the TC Electronics Nova digital delay in perfect condition for $140 Cdn.
Very happy about that.Had a couple of new ideas whilst I were out there as well that I shall be implementing in the future:
Now - back to relaxing after a tiring vacation. ![]() |
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| July 3008 12:25 PM |
The
next module is up and running on the G.I.M.P. - S.E.! Woohoo!
Earlier this morning, I got the final connections done for
the 1st of my 2 x new Ken Stone Master Dividers and powered it up for
testing. Each connection is working fine, first time -
except, for 2 of them.
Upon checking Ken's writeup on the board, I found the 2nd of
2 modifications that have to be done - changing the input to 1 of the
XOR gates to another pin on the CD4024. BUT -
- not performing this correction modification has turned out to be a
benefit to me! ![]()
The trouble that I was having with putting my Ray Wilson MFOS
Sequencer in proper downbeat sync with my 4 step 1V/octave Quadatrix
sequencer, put each of them 1/2 beat out of sync with each other.
1 of these 2 outputs from Ken's new Master Divider that was
NOT corrected, GIVES me the proper trigger TO sync my 2 sequencers at
the normal clock frequency!!
I'm leaving this Master Divider's error as it is, to my own
advantage!I'm just about finished hooking up all of the connections for the 2nd of the 2 new Master Dividers as well. Though, I'm unable to test it at the moment as I don't have my recent Mouser Electronics order, due to a quadruple screwup from UPS.
I still have to phone them to get them to deliver my order
(with 25 x CD4070's and other parts) to this place at a time where
someone is actually here. (They came at roughly the same
time, on 3 consective days.)Here's a photo of the back of the panel, thusly far: |
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| July 2708 12:27AM |
Minor
news update: Construction on the G.I.M.P. - S.E. is slowly continuing.
I have all or almost all of the parts put on to the PCBs for
both
of the new Ken Stone Master Dividers as well as 1 of the 2 Ray Wilson
M.F.O.S. Sequencer Digital boards. 1 more digital needs to be
completed. Also, I still have to make the 2nd triple SPDT VC
switch (In to A/B) board as well as the double SPDT VC switch (A/B to
Out) board and finally, the power distribution board to supply power to
all of the PCBs for this monstrous panel. ![]() Wiring has not yet begun, except for the 1st of the 2 triple VC switches, which is functioning wonderfully. ![]() There're some modifications that I'll be doing to the M.F.O.S. Seq. digital boards:
I'm trying to be as careful as possible with the build of this 8U high panel, as it's the largest panel that I've ever thought of for any modular synthesizer that I've built over the years. With the successful operation of each of the modules within this panel, it will also by far, be THEE most powerful panel that I've ever made. Construction time is taking a little while. Once it comes to wiring and testing each of the modules, I'm realistically hoping to have it completed by the end of August. Leaving me time still, weather wise, to bring both cabinets outside to shoot a live improvisation performance. :) Other modules that will be coming after completion of the G.I.M.P. - S.E. shall include:
I think that's all of the things on my back burner for the moment.
That above list will take me at least the rest of the this
year
to complete. That will include the need for building rack #3
for
housing everything as well.
(My racks are
approximately
5 1/2 feet tall. )
Not to mention all of the
knobs that
I still have to make! Aiieeyeyeyeyeye. And finding
a proper
way of glueing them onto the shafts as well, so that they ARE removable
without damaging the pot. |
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| July 1208 7:03PM | Here's the 1st video of my MFOS Sequencer, along with my 1V/octave 4 step sequencer and my Liquid Hihat percussion module being played, in the background. | |||
| July 0808 1:54PM MFOS Sequencer completed! Mods to be done. |
In
late June 2008, I
FINALLY got my Ray Wilson Music From Outer Space Sequencer completed.
The one that I had done the panel for, back in November2007.
She's up and running, 99% completed. The final
parts to be
done is aquiring 4 pushbuttons for their proper functions.
For
the moment, I'm using 4 miniature PCB mount buttons, hanging off of
wires. No modifications have been done to this sequencer. It's stock. I've decided to leave all modifications to future sequencer boards that I have purchased from Ray, last week. On Saturday July 0508, I began design and construction of The Groovy Innovator Manipulating Pulses - Sequencer Engine!
Details on this engine may be found in the Design section of
this web site through this link: The
G.I.M.P. - S.E.Here's a pic of him, for now.
There'll be a greaterly detailed pic on the front page once
he
and the Divide By 7 counter panel, are moved to their new rack, beside
the 1st one. |
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| Jan.
2708 8:02PM |
Version 0035
Alpha of my Numerology software is available at my mystical site: C.H.A.N.S.S.
- down at the bottom of that page. ![]() The software is still EXTREMELY early in it's development but there's enough of it written now to be able to get BASIC interpretations of any person's name that you put in to it. There's a LOT more coming to it, in time.
Whilst my building time remains 'on hold', I'll be continuing to work on this as well as other software packages. I'm open to anyone's input on the software itself. My appropriate ee-male address is listed on that page as well. |
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| Jan. 2008 11:50AM |
Barely
related to
synthesizer news, but it could quite possibly be in time - I've just
purchased my first software for programming in years.
Just
Basic Gold V4.03If you're interested in programming for Windows but never have - Just Basic has the BEST tutorial for programming for BEGINNERS that I have seen since GFA Basic for the Atari ST in 1988, as well as almost ANY Dummies book. (Of which I've been a regular purchaser since HTML 2.0 for Dummies, in 1996). My main purposes for purchasing this package as well as getting into programming again for the 1st time in 3 years (I've been programming in various versions of Basic since 1982) is to continue working on softare that I've written for Astrology as well as Numerology, in 2005, as well as begin work on my first computer game that I've worked on since 1992. I'll also be looking into POSSIBLY writing Sequencer software in this version of Basic as it does all control of external things through I/O ports on the PC as well. If the software is fast enough, I should be able to write software for interacting with my modular. Shall see in the farther future though, as I just had yet ANOTHER PCB come in and there'll be another order for 4 MORE PCBs going in this coming week. Adding all of those to my currently growing backlog of stuff to get built. |
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| Jan. 0508 2:55PM | I've
added a new sub-section to my personal web page, www.rykhaard.com - Chinese
language. I've only been sparsely learning the language over the last 18 months or so, but decided today to start a new sub-section dealing with the language and my growing interests within the culture, on my other web page. ![]() Gaitian zàiliáo - (Talk to you soon.
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| Dec. 3007 6:46PM | 19"
rack #3 is completed, except for mounting of it's 2 rack railings.
The 2nd last thing to do for it is to mount my new 2nd +/-15V
1.5
amp power supply into it's own panel and screw it onto the rack for
completion. Permanent mounting of my railings to rack #2 will
set
me with 3 x 19" racks for panels, with 1 of them being filled.
A
lot more room for building over the next approximate year. ![]() Off I am now to apply polyurethane coatings to about 20+ knobs that have been drawn for months already. I just bought some 1/4" dowels a couple of days ago which will make polyurethaning many knobs at a time possible, as well as MUCH faster than how I had before. ![]() ![]() After that, I'll start on wiring the digital and analog boards for my MFOS Sequencer to IT's front panel, finally. My biggest hopes with it, are to have it completed by tomorrow before we head out for New Year's Eve celebrations. ![]() Yet ANOTHER thought that I had for my 2 upcoming designed sequencers is building a DUAL sequencer engine, SEPARATELY from the sequencers will full step patching capabilities from the engines as well as inTO the sequencers. That will allow me almost any combinations of the sequencer's steps to run in whichever way that's possible, from the two engines, INCLUDING mixing bit selection outputs FROM the engines, also as well, as modifications to the engine's output BITs FROM other areas. I'll be starting on my 8 step / 5 bit per step, sequencer, after the MFOS Sequencer is completed. Right then - off to building. (Today was the first building time available to me, in over 5 weeks.
I'm finally getting to take care of my 'almost obessesion /
addiction'.
)Schematics for my sequencers and their engine will be posted once they're available. |
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| Dec. 2907 1:28AM | I
FINALLY got out today to pick up more 2"x3"'s to build - 19" rack #3.
At the same time, I picked up some more dowels, including a
1/4"
thick one, which will make it easier for polyurethaning the MANY, MANY
knobs for my synth that have been drawn on, but not yet coated.
Also, I picked up a new chow-saw, that were on
Boxing Week
sale. That'll make building of rack #3 FAR faster than #1
were.
Much-o happy about that! ![]() It's been a very shitty collection of holidays so far as far as building time goes. No building done YET, in my past 7 days off.
Here's to hoping that I'll get in at least 8 hours of
building,
before I'm back to work on Wednesday next week. Goals are to
finish the stock build of my MFOS Sequencer (yet ANOTHER mod. for it,
thought up today.) as well as get rack #3 built and the 30+ knobs
properly coated with 3 layers of polyurethane.Shall see what happens! ![]() Some unrelated by fun-to-me news - with a $20 Chapters Christmas card, yesterday I picked up "Chinese For Dummies - Audio Set" to allow me to properly learn how to speak Chinese! ![]()
I've been learning from friends and co-workers at work over
the
last 1 1/2 years and have been loving the language all the more.
Some day I hope to be able to fully babble back and forth in
Cantonese Chinese. ![]() |
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| Dec. 2407 11:38AM | Finally,
after wanting to find them for over 30 years, did I come across a small
source of paddle switches. 4
x DPDT and 6 SPDT. All the same paddle shape and
size. Not having immediate access to any more of them (though
POSSIBLY, some in England - no answer yet), I'm going to go ahead and
use 8 of them total in one of my 2 coming 1V/octave sequencer designs
that I've been brewing. (As you may've seen in the Design
section
- 2 new (for me) designs are both working, in prototype states.
The 12 position rotary switch one will be an 8 step and the 5
bit
one will either be an 8 step, or dual 4 steps. We shall see,
once
I get their engine's designed. Hopefully, the same engine
will be
adjustable for both of them as well as other sequencers in my building
future. ![]() On THAT note - being on 11 days off from work on season vacation, I'll be finally coming back to building after an enforced 'break' for at least the last 3 weeks.
More words on stuff once I start getting things together. |
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| Dec. 1507 12:37PM |
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| Nov. 2207 3:36PM Off work due to flu. ![]() |
R.I.P.
Tom Gamble's VCO 4D. ![]() Due to my very first ever working discrete VCO's deciding all of a sudden to change it's mind and play almost 2 octaves / volt, and the rush in which it was built 2 years ago - I decided to permanently retire that VCO today. With the errors that Tom had done in designing the VCO, it would have been WAY too much a pain in the ass to reconfigure everything. I laid out's PCB originally, mostly with how Tom had designed the circuit. It served me 2 years though, at least. Now though, I have wonderfully working VCOs from Ian Fritz, Ray Wilson and Ken Stone. My 1st (working) Ray Wilson VCO will take the place of Tom's in the former VCO / 5 level Pulse Width Modulator / Quad 3 Input mixer panel - for it to become a Ray VCO / Quad mixer panel instead. Also - now that I have a day off of work, I HOPE to be able to COMPLETE my MFOS Sequencer today, now that the art work for it is completed. All I have to do is mount the controls and boards and hook it all together. Though - I don't have the 16 LED holders at the moment that I need. They'll have to be loosely mounted for the moment. Photos and samples will be posted when it's completed. On the SLIM chance that I get the panel completed earlier than I expect to, I'll then shift over to mounting my 4 step 1V/octave sequencer engine in place of 1 of Tom Bug's 2 x Pattern Generators, that I have mounted into another panel - to give it 1V/octave for each of it's 4 steps. ![]() This is all of course, if my health holds through the day. Not a lot of energy. ![]() |
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| Nov.
2107 11:06PM Update |
Mmmm.
The
webpages have been falling behind whilst I've been building.
As ever
recently, my backlog has been growing. I've got the current list of
things going on:
That's it for the moment, for the things that are CURRENT in construction. ![]() Oh yeah. Once I have the Quadatrix 4 step sequencer engine up and running properly, I'll post either a sample or video of it, working.
This could possibly be, the 1st PCB that I'll have done
professionally. (The 4 step engine, itself.) Once I
have
the controller section worked out, I'll see what the PCB sizes work out
to be, as I'd like to have quite a few of the engines and at least a
couple of controllers. |
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| Nov. 2007 2:45PM |
QUICKLY!
With installation of NEW 12P1T switch, my 4 step SWITCHABLE
1V/Octave sequencer, is WORKING!!!!!!! :D WOOHOO! Rushing to work! |
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| Nov. 1307 11:22AM |
My
first of many Ray Wilson VCOs is up and running.
Not a fault were had. I just have to tune it and
set the
symmetries for the Sine and Triangle waveform outputs and all
is
swell. ![]() Problem that I'm having though - I'd mentioned on Sunday that I'm going to turn the former VCO / Bi'N'Tic panel into a triple VCO panel - is the huge number of holes that I made in the original for the # of pots required.
That has turned out to be WAY more than the 3 VCOs need -
whether they're Ken Stone OR Ray Wilson VCOs. (sigh)An alternate idea that I had last night, was to put in Ken's Wave Folder in place of 1 of the 3 VCOs. A NEW problem here, is not having enough JACKs for all of the functions of the wave folder. ![]() Of course - thoughts of scrapping the entire panel and drilling a new one have come about, but at $5 + labour for a panel, I'd rather not scrap it. Now - to decide whether to hold the panel aside for another use later or not ....... well anyways - off to tune the VCO.
That'll bring me up to 4 live VCOs, with enough PCBs to bring
the machine up to 8 VCOs.
Getting closer to my ages ago goal of 12 to 16 VCOs.
Feels good, in that regard. ![]() |
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| Nov. 1107 12:51PM |
Wow
- talk about a growing backlog!
(Which is rare for me, in building). I came up to
10 boards
waiting to have parts stuffed into them, in the last few days, when 2 x
Ray Wilson State Variable VCFs arrived in the mail. ![]() ![]() I got all of the parts that I have, mounted into the 2 PCBs for the Ray Wilson M.F.O.S. Sequencer. I'm still waiting for the CMOS chips to come in, that I ordered. Instead of building the panel for the unit, I thought I'd instead start working on my backlog. Way back this year - I had a panel set up for a VCO as well as Ken Stone Bi-N-Tic VCF/VCO, that I had modified and it was working. I'd decided though to UN-modify it, bringing it back to it's original state and THEN modify it again to split the VCO from driving the VCF, so that I would have the option of the VCO and VCF separately. I've removed the Bi-N-Tic from the panel, but haven't yet done that new mod. With the panel having only 1 VCO in it at the moment - I changed my mind yesterday and decided to put 2 of the waiting VCO PCBs in, to finish the panel. This morning, I've gotten 90% of the parts for my Ray Wilson VCO installed. With a couple of more hours of work, that VCO will be up and running. ![]() I'll either do the 3rd VCO for that panel next (which will bring me up to 5 x VCOs online, or I'll stuff the parts into the 2 x State Variable VCFs as well as make a PCB for my LAST SSM2044 VCF chip - mounting the 3 into their own panel. (That'll bring my VCFs up to 3 x SSM2044s; 2 x discrete State Variable VCFs and 2 x Ray Wilson State Variable VCFs with VC Resonance on each of them. Whichever next option I choose, once it's finished, the CMOS chips should finally be in and I'll then get to finishing the 1st working sequencer that D.A.M.I.A.N. will have, completed. ![]()
Very soon after - serious tune writing on D.A.M.I.A.N., will
finally be able to commence. ![]() Right then - off to preparation for Rememberance Day with my girlfriend's honourable WWII veteran, father. ![]() |
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| Nov. 0807 11:23AM | A
brief update on what's shaking. ![]() Construction of the Ray Wilson 16 step analog sequencer, started yesterday.
Once I have the unit completed and working, I'll be modifying
it
to function as a 2 voice Drum Controller. The standard unit
has 1
buss for CV / Trigger / Gate. I'll be adding a 2nd buss to it
with the same functions. An ON/OFF/ON rocker switch will be
used
on each step, to select whether that step is BUSS 1 / OFF / BUSS 2.Also - each buss will be able to be used for controlling a chosen dynamic of the drum sound that it's triggering, and / or, sending a CV to another unit. Another mod that I'll be testing for the busses is LOCK for each of the bits, that choose which steps are playing. This option will allow steps:
Once the 3 CMOS chips that I didn't have in stock arrive, I hope to have this complete panel finished within 1 week of today. Upon success of my modifications of the sequencer for use as a drum controller, I'll then order at least 2 more sets of boards, to give myself control of up to 6 drum voices! ![]() Following that, will be construction of a quad PAiA / Ken Stone drum simulator, with control over pitch as well as a Control Voltage input, for each of the drums. That in combination with the drum controllers as well as my Liquid Hihat; Cynare Drum Simulator and CVable Shimmer section will give me a good start for an electronic 'drummer' for D.A.M.I.A.N. ![]() 1 other modification idea that I will be looking into in the future is 1V/octave operation for the sequencer. More on that later though, once the first unit is up and running. In other news - I got my order in yesterday for my 1st KLEE SEQUENCER! This in combination with the drummer, will finally bring D.A.M.I.A.N. to a music creation stage for the real 1st time in his 29 month life. ![]() |
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| Oct. 3107 2:20PM |
Briefly,
before I have to head to work - The Liquid Hihat V1.00 alpha is fully
up and running!
I am absutively BEYOND happy about this!At the moment, I'm saving the 1st of 2 videos that I've made of it. (The 1st one was interrupted by a telephone call) The 1st is showing a basic 1/8th note hithat being played, whilst I introduce the 4 x Control Voltage inputs to the module. 2 of them have a Low Frequency Oscillators hooked up to each clock set as well as an Attack Decay Sustain Release envelope generator hooked up to each of them. As well, a 3rd ADSR EG is hooked up to the single Voltage Controlled Amplifier that The Liquid Hihat is being heard, through. There's also an Attack Decay EG driving the VCA. That, boys and girls is the entire hookup. No audio effects, filters or anything. Pure and raw, Liquid Hihat. The 2nd video, has everything hooked up the same, but I take a tour through control of the pitch on the 2 x linear Voltage Controlled Oscillators as well as the 4 x Schmidt Inverter clocks. Later in the 2nd video, I extend the Decay time of the AD EG that's controlling the VCA to give a better audible idea of the Liquid Hihat's native sound, overall. |
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| Oct. 2607 | Wow.
Talk about delays, all through the week! Sick
common-father-in-law; sick cat requiring the vet.
Every day seeming like there'd be time to get at least an
hour of building in but nada.
On top of that - new ideas flowing out all over the place at
work, getting no farther than written down. (sigh)Anyways - with yet more delays today, at least I have a few minutes for an update for my loyal followers. ![]() The PCB for The Liquid Hihat cooked beautifully: (clicking on it will bring up the full pic with schematic and PCB layout) ![]() I've just done the pre-soldering to all of the pads (for the Bernie Hutchins inspired "Poor Man's Surface Mount" building style that I've used for over 10 years, very successfully.
Hopefully - I'll have all of the parts added to the PCB this
weekend, along with all 13 of the pots for it and I'll be able to give
her a go. The samples that are available are from a simpler
version of the Shimmer section of EMM / Ken Stone's Cynare.
This
one has gone full blast with the complete CD40106 structure of the
Cynare, replacing 2 of the oscillators, with 2 x CD4046 oscillators
which are the voltage controlled versions for what I believe to be -
the 1st voltage controlled frequencies hi-hat, in the world.
The sounds that this one will be capable of (from past
experiences) will blow away the 2 other samples that I posted.
Keep your ear tuned to this website, for future examples
(including videos).In other news: yesterday I laid out the rough structure of my 1st ever 'Drum Voice'! Tentative name for the module so far is: "The Gawd of Thunder" (nod of respect to Kiss, for the name) Plans for this module include:
Each module portion of the panel will be FULLY patchable, so that each of the modules may be used for other functions as well. The entire setup (without the distortion unit that I haven't yet looked for a schematic FOR) will be tested in D.A.M.I.A.N., live to video as I currently have all of those modules available in the machine, for testing the setup WITH. (The 2 x oscillators will be standard VCO sawtooths, filtered to as simple a waveform as possible). With the above listing of modules, the panel will be capable of EXTREMELY complex drum voices as well as much simpler sounding drum voices, for operating as more than 1 voice. If I include more AD EGs as well as VCAs, it could be capable of 3 or 4 voices. Upon success of The Gawd of Thunder, I'll build a 2nd one at least. The 2 of them along with The Liquid Hihat, my full Cynare as well as VCable Shimmer, will make for a powerful drumset for D.A.M.I.A.N. ![]() One of the reasons that I'm including 2 oscillators in the drum panel, is due to the success that I had with making dual oscillator drum sounds in the Propellerheads' Reason software, a couple of years ago. Dual pitches give some great character for drum sounds, that haven't ever been done, in the physical world, with real drums. Also - upon success of my modified MFOS sequencer for a drum controller - the potential for 3 of them along with all of my drum voices will be shooting up there as one of the most powerful dedicated analog synth drum systems, on the planet. ![]() Now - if I could only get enough free time to COMPLETE all of the building required! ![]() Samples / videos will appear as progress occurs. ![]() |
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| Oct. 1407 | Wow.
Through my 15 year long modular synthesizer building
personal history, the MOST troubled module that I've ever tried
building, is the Sample & Hold.
No matter what; whether everything were correct or not,
they'd refuse to work. Out of the previous 6 to my current
LF398 S&H, I had only ever gotten ONE discrete one to work,
that went out ot a customer. ![]() Finally - over the last 2 days, in reviewing what I had done with the current LF398 version from Peter Grenader, did I figure out what the problems were and it's working beautifully. ![]() Yesterday in my first re-investigation of this unit that I had salvaged (along with dual 2 input NAND Gates and White Noise generator) from my 1st failed 1V/oct. sequencer board, I noticed that a 0.01uF capacitor was actually a 0.1uF cap., and that a neighbouring 10k resistor wasn't properly soldered at 1 end. Replacing the incorrect cap. and hooking the unit up - I found that I was getting nothing but a slowly rising voltage out of the Output. Hooking up a clock as well as WN input ended up giving me SOMEthing of a S&H effect, with a slight range and HUGE amounts of up going slew in voltage outputs. Digging up the original Peter Grenader schematic to compare it to the board, I found that in my salvaging process I had disconnected one area of GROUND from the circuit. (For the 33nF poly. cap.) Reconnecting this and hooking everything up again - I've had my 2nd only out of 7 S&H's, work perfectly! ![]()
Pleased, is NOT quite a strong enough word for my happiness
at that! ![]() Once I get the minor amounts of extra required parts for Peter's Slewing output as well as my LEDs for the S&H and NAND Gates, I'll be mounting the board into the dual ADSR; S&H; WN; NAND; LFO; Comparator / Differencer / Rectifier panel that I already have prepared. I hope to finish the entire panel, by the end of this coming week.
After that, finishing the original VCO / Bi-N-Tic panel (VCO,
VCO, Wave Multiplier) and hooking up the last 2 of 4 VCAs to the 4 VCA
panel - all of my backlog will be completed and I'll finally allow
myself to start on new panels again. ![]() With only 6U of space left in the new rack I'll also have to build a new rack fairly soon. |
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| Sept. 0307 | Closer detailed knob pics are now available at this section | |||
| Aug. 3107 | Major
remodification? Major decision!
I've just decided to completely remove my Ken Stone Bi-N-Tic
VCO/VCF. (Sounds of shock from the audience.
) I'm
going to mount the Bi-N-Tic into another panel at a later date,
possibly with my 2nd Bi-N-Tic PCB - unless I decide to sell the
unpopulated 2nd one. I haven't decided yet.I'm going to put at least a 2nd VCO into the current VCO / Bi-N-Tic panel. With my implementation of Ken's VCO taking up 12 jacks and 8 pots, removing the modified Bi-N-Tic will leave me with 18 jacks and 24 pots to use. (Deciding right now, where to go with the real estate.) At full implementation, a 2nd VCO would take up another 12 jacks and 8 pots, leaving 6 jacks and 16 pots free. At max, his Wave Folder module uses 13 jacks and 12 pots. Mmmmm. Decisions decisions. Let's look at Richard Brewster's Ken Stone VCO modifcation: 6 jacks and 3 pots, for his. That, is MUCH simpler, real estate wise. ![]() Another modification that I wish to do is at LEAST 1 implementation of my own dual set of Pulse Width / Pulse Width Modulation (Saw to PW) waveform converters. Each dual set will require:
So - let's do some math: |
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| WELL? | NEW MODULE JACK REQ's | NEW MODULE POT REQ's | AVAILABLE JACKS = 18 | AVAILABLE POTS = 24 |
Uh oh.
![]() |
Ken Stone
VCO = 12 Ken Wave Mult. = 13 |
Ken Stone
VCO = 8 Ken Wave Mult. = 12 |
Jacks left =
6 Jacks left = (-7) |
Pots left =
16 Pots left = 4 |
Mmm.
![]() |
Brewster /
Ken VCO = 6 Ken Wave Mult. = 13 |
Brewster /
Ken VCO = 3 Ken Wave Mult. = 12 |
Jacks left =
12 Jacks left = (-1) |
Pots left =
21 Pots left = 9 |
| Modifications
needed ...... I'll do my dual PW / PWM addition, right on the VCO PCB itself, cutting traces where needed |
Brewster VCO
Jacks = 8
|
Brewster VCO
Pots = 8
|
Jacks left = 10 | Pots left = 13 I'll add a pot to each of the 2 VCOs for the panel, to allow the amount of modulation from EACH of the VCOs hardwired to the OTHER VCO - like the Cross Modulation that Roland synths of years ago, had. ![]() Another addition - Since I will still have 2 pots still available in the panel, I'll add another modulation pot to each VCO, to take modulation for each of them FROM the Wave Multiplier! ![]() |
And there we
have it! A new modification figured out as I think everything out on
the webpage ![]() |
Brewster / Ryk
VCO Jacks = 8 . . . . . . . . Ken Wave Folder Jacks = 13 |
Brewster / Ryk
VCO Pots = 8 . . . . . . . . . Ken Wave Folder Pots = 12 |
Jacks left = 10 Removing 3 .... shit. Can't remove them from the Wave Folder. It's all useful. K. I'll remove the needed ones from the original VCO that's in their now. No problem. ![]() Jacks left = 0 |
Pots left = 24
minus
|
So
- the former VCO / Bi-N-Tic panel will now become:
![]()
I can't wait to get this one completed.
By the looks of the lack of free time available, I hope I can
have it all completed and ready for photographing and sampling from, by
the end of next week. It's a long weekend this weekend, but
the
girlfriend is making visiting plans. ![]()
Shall see where I can find building time. ![]() ![]() ![]() |
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| Aug. 3007 | Major
remodifications have begun, now that enough of my studio is up and
running to be able to compose, once again. ![]() I've decided to rip the to Ken Stone VCAs out of my VCO / Bi N Tic (VCO / VCF) panel, to place them into the panel with 4 x 3 Input VCAs, as there're only 2 of the possible 4 mounted in the panel. I'll return the Bandpass Frequency controls for the Bi N Tic to their normal pots. Also - I'm separating the Bi N Tic's VCO from it's VCF. This will include:
Today I also removed my dual SSM2044 LPF / dual SSM2164 Charlie Lamm VCA, to find out what was wrong with all of my panel controls, as I didn't seem to be able to get proper VCA response from either of them. After about 1 1/2 hours of removing cable ties and (finally - LOL
) labelling all of the controls - I found that there WERE no problem
with any of the inputs or controls, but that I had put an "Initial
Level" knob, onto the wrong pot. With other knobs missing and
forgetting the layout of the pots, I was continually turning the wrong
ones, trying to figure out why I sometimes wouldn't get signals!
Duhhhh. ![]() Now that the panel is properly labelled and I understand where everything is - no troubles at all.
ROFL After MONTHS man! Hahaha.I also plan to finish my dual Ray Wilson ADSR panel, which is approximately 50% completed, as of March. I may also take my 2nd Bi N Tic PCB and use it ONLY for it's VCO, as well as build my other VCO PCBs. With all of this done, D.A.M.I.A.N. will be up to 6 x VCOs. With my desires to use them as LFOs as well, I may also build some waveform converters as well. Will have to see what panel space I have available as, with my 5' tall rack, I'm running out of room AGAIN, already! ![]() ![]() Right then. That's about all of the news for the moment.
With the V1.20 Deathlehem Quadraxii P.R.O.B.E. Joystick
Controller built and 3 noise tunes recorded over the last month -
Deathlehem is ALIVE AGAIN for the first time in 11 years!
Doom
and Glory to the ears of all! ![]() ![]() ![]() Ooop yeah. 1 last bit. My first new Industrial tune - De-Evolution is under composition, as of yesterday. As a sequel to my Industrial vocal tune Evolution from 1988 ( My tunes ), it'll also be my first vocals tune since Sufring V1.31 in 2001. De-Evolution carries in my world-society analysis that I had started with Evolution and where we've been going since 1988. With the verses being written in 7/4 as well as other time signatures coming within the tune and as WELL again, my desire to NOT write any more tunes in 4/4, it'll be something of a rhythmic freak, for all those that are use to hearing only or mostly, 4/4 tunes over every bloody radio station. ![]() As usual, it'll be available in my tunes site, when it's complete - free for all do DL. ![]() |
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| Aug. 0207 | Data
on my new
Joystick Controller has been posted in the Design
section.
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| July 3107 |
![]() I
received a couple of packages in the mail today that I've been waiting
a little while for, that I've VERY happy about! ![]()
From another SDIY mailing list member, Mark Verbos - I
received 10 sets of guts from joysticks. Here,
are a couple of shots of what they look like without any
additional hardware: |
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| My 4 axis joysticks idea that I came up with the idea for, earlier this month, will have added to the joystick paddle itself, a pot like this, at the very top of the paddle: | ||||
| as
well as a slider
pot like this one, added over and around the paddle
itself. These 2 extra controllers will allow a total of 4 dimensions to be controlled with a single joystick paddle!
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Other things for this joystick will include:
I've been trying to find some of this material since December 2006 when I was last working on my MIDIbox SEQ sequencer!
This wood will allow me to make my panel for holding all of the parts
for the sequencer in the shape that I have in mind. I've never seen any
other panel like it in the music industry, in my 32 years of playing
around in it. ![]()
As is the case with my modular synthesizer D.A.M.I.A.N. being the first
synth in the world with wooden panels as well as art decorated wooden
knobs, I will also have the first instrument panel of my intended
fashion in the world. ![]()
If ANYone know of anyone else who has done this before,
please DO let me know and I shall retract my above statement. |
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| July 2107 | Tunes:
56 of my tunes from between 1983 to 2005 are currently available
at my personal website.
Rykhaard
Depending on how many I find in my formerly used
Propellerheads' Reason
tunes directory I could have another 20 to 40 tunes posted, in the next
few days.
![]() Comments on any of the above? Post away at my Aural Research Facilities Blog.
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| March 3007 - 11:20am | Continuing
the update with a new (to me
) thought as to attempting to tune the Band Pass Filters for my Vowel
Filter.
I realized yesterday at work, due to possible confusion
for me in the display of the Sprectral Analysis freeware, that I could
monitor the output of each of the 3 BPFs individually, to try and get a
better idea as to what frequency (cies) that each filter is passing, as
well as at what amplitudes. |
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| March 2907 - 11:30am | 3
hrs. before I have to leave for work. ![]() Continuing the update with a further realization.
Yesterday I had started working out the resistor values
in combination, to set up my triple BPF so that it could produce the
well known choir sound of "Awww" from a male voice. Time was up. Off I had to go to shower, before leaving for work. When I was in the shower, I remembered the original
schematic from Mr. Hutchins' paper in EN #115. There were 2 extra
resistors on the output of the opamp in the BPF that I hadn't used,
who's values in the chart of resistor values for frequencies, I hadn't
completely understood. :O Then and there I came to the possibly entirely correct
realizations THAT: So here I am at the moment, just before setting about
wiring up a 5K pot, to attach to the inverting summing output of the 3
x BPFs, to watch the spectral analysis software's screen, to see if my
realization is correct. 2:14pm Well - setting up the 5k pot through a 100k resistor,
brought more questions. I found a couple of hookup bugs on the
breadboard. My next step, is to set up each of the BPF's with their
own Inverters at their outputs and bringing each of them back to the
Inverting input Summer so that I can have different Feedback levels, to
try and get back to the original 'Ayyy' sound that I had over all
frequencies, without any feedback. |
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| March 2707 | 2007
update of my 1995 Vowel Filter
And off I am. Seeing the difference in resistor values between
Bernie's 39 Bank Bandpass Filter project and the resistor examples that
I used from this site: Op
Amp Basics as well as having no FULL clue as how to design a
filter - I'm completely unsure as to the actual Q values of each of my
3 Bandpasses. :( As far as my brain can figure for the moment, I'll be setting up this 5 opamp total contraption, (Input Buffer; 3 BPF OAs and an Output Buffer / Mixer) to allow me to switch each of the 3 BPFs for the following vowel sounds. (Unless I rule some of them out, due to their sound not being interesting enough, after testin | |||