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| Total Votes : 44 |
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oldschool57
Joined: Nov 15, 2006
Posts: 17
Location: Bellerose, NY
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 Posted: Mon Mar 29, 2010 11:18 am Post subject:
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I'm about to begin calibration. What are the high & low clock f's you used?
Thanks! |
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oldschool57
Joined: Nov 15, 2006
Posts: 17
Location: Bellerose, NY
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| Posted: Thu Apr 01, 2010 6:12 am Post subject:
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| Never mind. Got it. |
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jhaible
Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24
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| Posted: Thu Apr 01, 2010 7:06 am Post subject:
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| oldschool57 wrote: | | Never mind. Got it. |
Ok, you were faster. 
I always adjust that kind of stuff by ear.
JH.
_________________
"I tell you the truth, if anyone says to this mountain, 'Go, throw yourself into the sea,' and does not doubt in his heart but believes that what he says will happen, it will be done for him. Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours." (Mk 11,23f) |
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dcreatorx
Joined: Jun 02, 2009
Posts: 17
Location: Barcelona
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| Posted: Sat Apr 17, 2010 4:29 am Post subject:
availability |
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Hi, is this project in development yet ? Is there any board available to buy ?
Thanks ! |
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jhaible
Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24
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| Posted: Sat Apr 17, 2010 4:46 am Post subject:
Re: availability |
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| dcreatorx wrote: | Hi, is this project in development yet ? Is there any board available to buy ?
Thanks ! |
I still have boards left.
Order information is here:
http://electro-music.com/forum/topic-26164.html
JH.
_________________
"I tell you the truth, if anyone says to this mountain, 'Go, throw yourself into the sea,' and does not doubt in his heart but believes that what he says will happen, it will be done for him. Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours." (Mk 11,23f) |
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StephenGiles
Joined: Apr 17, 2006
Posts: 507
Location: England
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| Posted: Sat Apr 17, 2010 8:58 am Post subject:
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| jhaible wrote: | | oldschool57 wrote: | | Never mind. Got it. |
Ok, you were faster.
I always adjust that kind of stuff by ear.
JH. |
Which is what I do too. There are guys wetting their pants over at DIY Stompboxes over clock frequencies!! |
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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
Audio files: 5
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| Posted: Mon Apr 19, 2010 9:14 am Post subject:
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Ok, I'm a bit lost on how to calibrate the many trimmers on this board, even by ear - I'm still a noob with BBD stuff. Do you mind either here or on your site giving some guidance/steps for each of the following (how to set up, what to test/look/listen for, etc...):
Short Resonance
Long Resonance
BBD Bias
Max Clock
Clock Low
Clock Tune
Filter
Also anything special to know about trimming the V/Oct scaling besides cranking the resonance and inputting the output of a CV keyboard? For example, does it matter where manual sweep is set?
Greatly appreciated. |
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jhaible
Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24
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| Posted: Mon Apr 19, 2010 1:57 pm Post subject:
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Short Resonance
Long Resonance
Set it for just getting self oscillation, or just barely getting self oscillation, according to your taste.
BBD Bias
Set for symmetrical clipping in the BBD stage, if there is any clipping at all
Max Clock
Set as high as possible, without the signal getting weak.
Clock Low
Something around 30kHz.
Clock Tune
Start with mid position and adjust to taste.
Filter
Mid position will do. that trimmer slightly alters the step response of the filter, but won't do much on the sound.
JH.
_________________
"I tell you the truth, if anyone says to this mountain, 'Go, throw yourself into the sea,' and does not doubt in his heart but believes that what he says will happen, it will be done for him. Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours." (Mk 11,23f)
Last edited by jhaible on Mon Apr 19, 2010 10:46 pm; edited 1 time in total |
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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
Audio files: 5
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| Posted: Mon Apr 19, 2010 2:14 pm Post subject:
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Sorry, I actually do speak a little German, but not that well - would it be possible in English, please
Thanks! |
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jhaible
Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24
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| Posted: Mon Apr 19, 2010 10:43 pm Post subject:
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| numbertalk wrote: | Sorry, I actually do speak a little German, but not that well - would it be possible in English, please
Thanks! |
 I didn't notice I was switching to German. Guess I'm spending too much time with my local friends, lately!
JH.
_________________
"I tell you the truth, if anyone says to this mountain, 'Go, throw yourself into the sea,' and does not doubt in his heart but believes that what he says will happen, it will be done for him. Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours." (Mk 11,23f) |
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jhaible
Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24
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| Posted: Mon Apr 19, 2010 10:47 pm Post subject:
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Should be better now. 
JH.
_________________
"I tell you the truth, if anyone says to this mountain, 'Go, throw yourself into the sea,' and does not doubt in his heart but believes that what he says will happen, it will be done for him. Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours." (Mk 11,23f) |
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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
Audio files: 5
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| Posted: Tue Apr 20, 2010 5:01 pm Post subject:
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| jhaible wrote: |
BBD Bias
Set for symmetrical clipping in the BBD stage, if there is any clipping at all
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Actually, would you mind detailing this one for me just a bit more? Where is the test point(s) we should set the scope probes to when adjusting BBD Bias? Also, would I feed in a sine wave or something and adjust for maximum size without clipping/distortion?
Thanks! |
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jhaible
Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24
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| Posted: Wed Apr 21, 2010 8:29 am Post subject:
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| numbertalk wrote: | | jhaible wrote: |
BBD Bias
Set for symmetrical clipping in the BBD stage, if there is any clipping at all
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Actually, would you mind detailing this one for me just a bit more? Where is the test point(s) we should set the scope probes to when adjusting BBD Bias? Also, would I feed in a sine wave or something and adjust for maximum size without clipping/distortion?
Thanks! |
Apply sine wave at signal input of the whole device, turn down any feedback/resonance, measure somewhere after the BBD with scope (pin 7 of U17, for example: http://www.jhaible.de/sonofstormtide/sost_sch4.pdf), increase input level until clipping occurs, adjust trimmer for clipping to occur as late as possible.
JH.
_________________
"I tell you the truth, if anyone says to this mountain, 'Go, throw yourself into the sea,' and does not doubt in his heart but believes that what he says will happen, it will be done for him. Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours." (Mk 11,23f) |
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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
Audio files: 5
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| Posted: Wed Apr 21, 2010 8:38 am Post subject:
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So when you say increase the input level, you mean on the setting on the SOST unit itself, right? If so, where should I start with the input level initially? Also, should I be able to get the level all the way up to 10 with a 10Vp-p sine input without clipping - is that realistic?
Thanks!
| jhaible wrote: | | numbertalk wrote: | | jhaible wrote: |
BBD Bias
Set for symmetrical clipping in the BBD stage, if there is any clipping at all
|
Actually, would you mind detailing this one for me just a bit more? Where is the test point(s) we should set the scope probes to when adjusting BBD Bias? Also, would I feed in a sine wave or something and adjust for maximum size without clipping/distortion?
Thanks! |
Apply sine wave at signal input of the whole device, turn down any feedback/resonance, measure somewhere after the BBD with scope (pin 7 of U17, for example: http://www.jhaible.de/sonofstormtide/sost_sch4.pdf), increase input level until clipping occurs, adjust trimmer for clipping to occur as late as possible.
JH. |
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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
Audio files: 5
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| Posted: Mon Apr 26, 2010 6:20 am Post subject:
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Hi JH, if you missed my last post had a few more quick questions. Thanks.
| numbertalk wrote: | So when you say increase the input level, you mean on the setting on the SOST unit itself, right? If so, where should I start with the input level initially? Also, should I be able to get the level all the way up to 10 with a 10Vp-p sine input without clipping - is that realistic?
Thanks!
| jhaible wrote: | | numbertalk wrote: | | jhaible wrote: |
BBD Bias
Set for symmetrical clipping in the BBD stage, if there is any clipping at all
|
Actually, would you mind detailing this one for me just a bit more? Where is the test point(s) we should set the scope probes to when adjusting BBD Bias? Also, would I feed in a sine wave or something and adjust for maximum size without clipping/distortion?
Thanks! |
Apply sine wave at signal input of the whole device, turn down any feedback/resonance, measure somewhere after the BBD with scope (pin 7 of U17, for example: http://www.jhaible.de/sonofstormtide/sost_sch4.pdf), increase input level until clipping occurs, adjust trimmer for clipping to occur as late as possible.
JH. |
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jhaible
Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24
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| Posted: Mon Apr 26, 2010 6:52 am Post subject:
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| numbertalk wrote: | | So when you say increase the input level, you mean on the setting on the SOST unit itself, right? |
If you have an input level pot connected. If not, adjust the level of your source.
| numbertalk wrote: | | If so, where should I start with the input level initially? |
Zero (no signal) will do.
| numbertalk wrote: | | Also, should I be able to get the level all the way up to 10 with a 10Vp-p sine input without clipping - is that realistic? |
Using raw modular system levels? That's a bit high. If you want to do that and you get clipping before you even run into the BBDs, decrease R65 (http://www.jhaible.de/sonofstormtide/sost_sch3.pdf) to make a resistor divider R63 and R64.
JH.
_________________
"I tell you the truth, if anyone says to this mountain, 'Go, throw yourself into the sea,' and does not doubt in his heart but believes that what he says will happen, it will be done for him. Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours." (Mk 11,23f) |
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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
Audio files: 5
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| Posted: Mon Apr 26, 2010 7:01 am Post subject:
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Thanks Jorgen!
I'll leave it as-is, since I will be using it a lot with non-modular inputs. Will just have an input attenuator on the SOST and/or a mixer to tame the output of the modular when using it with this.
| jhaible wrote: | | numbertalk wrote: | | So when you say increase the input level, you mean on the setting on the SOST unit itself, right? |
If you have an input level pot connected. If not, adjust the level of your source.
| numbertalk wrote: | | If so, where should I start with the input level initially? |
Zero (no signal) will do.
| numbertalk wrote: | | Also, should I be able to get the level all the way up to 10 with a 10Vp-p sine input without clipping - is that realistic? |
Using raw modular system levels? That's a bit high. If you want to do that and you get clipping before you even run into the BBDs, decrease R65 (http://www.jhaible.de/sonofstormtide/sost_sch3.pdf) to make a resistor divider R63 and R64.
JH. |
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jhaible
Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24
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| Posted: Mon Apr 26, 2010 7:24 am Post subject:
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| numbertalk wrote: | Will just have an input attenuator on the SOST and/or a mixer to tame the output of the modular when using it with this.
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That's a good solution.
JH.
_________________
"I tell you the truth, if anyone says to this mountain, 'Go, throw yourself into the sea,' and does not doubt in his heart but believes that what he says will happen, it will be done for him. Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours." (Mk 11,23f) |
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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
Audio files: 5
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| Posted: Sat Jun 05, 2010 12:16 pm Post subject:
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Hi JH,
I have a question about one of the features - specifically inversion, for both resonance and the 2 signal paths. I know I can play around with them to hear what they do, but am looking for a more informed insight into what desired results you'd be going for to invert any of these 3 in different combination.
Also, the long and short for the 2 outputs - is it that "short" the signal goes through 1 of the BBD lines and for "long" it goes through both BBD lines?
Thanks! |
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jhaible
Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24
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| Posted: Sat Jun 05, 2010 1:21 pm Post subject:
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| numbertalk wrote: | Hi JH,
I have a question about one of the features - specifically inversion, for both resonance and the 2 signal paths. I know I can play around with them to hear what they do, but am looking for a more informed insight into what desired results you'd be going for to invert any of these 3 in different combination.
Also, the long and short for the 2 outputs - is it that "short" the signal goes through 1 of the BBD lines and for "long" it goes through both BBD lines?
Thanks! |
Yes, long and short refers to 2 vs 1 BBD.
Signal inversion exchanges peaks and notches, simply speaking. And it creates a tremendous stereo effect when you do it either way in either channel. And it changes the coulur of resonance - quite drastically, too.
But you *will* find this out by playing with it, much more than a verbal description can say.
JH.
_________________
"I tell you the truth, if anyone says to this mountain, 'Go, throw yourself into the sea,' and does not doubt in his heart but believes that what he says will happen, it will be done for him. Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours." (Mk 11,23f) |
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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
Audio files: 5
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| Posted: Sat Jun 05, 2010 2:37 pm Post subject:
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this is very helpful - thanks!
| jhaible wrote: | | numbertalk wrote: | Hi JH,
I have a question about one of the features - specifically inversion, for both resonance and the 2 signal paths. I know I can play around with them to hear what they do, but am looking for a more informed insight into what desired results you'd be going for to invert any of these 3 in different combination.
Also, the long and short for the 2 outputs - is it that "short" the signal goes through 1 of the BBD lines and for "long" it goes through both BBD lines?
Thanks! |
Yes, long and short refers to 2 vs 1 BBD.
Signal inversion exchanges peaks and notches, simply speaking. And it creates a tremendous stereo effect when you do it either way in either channel. And it changes the coulur of resonance - quite drastically, too.
But you *will* find this out by playing with it, much more than a verbal description can say.
JH. |
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sduck
Joined: Dec 16, 2007
Posts: 459
Location: Nashville
Audio files: 5
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| Posted: Wed Jun 16, 2010 11:45 am Post subject:
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Just got some boards for this. Also managed to find the TDA1022's at UTSource - 5$US each (I ordered 8 ).
Last edited by sduck on Sun Jun 20, 2010 2:22 pm; edited 1 time in total |
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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
Audio files: 5
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| Posted: Sun Jun 20, 2010 1:06 pm Post subject:
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Hi JH, a couple more questions.
1) For the 5mm caps on the bom, some of the lower value ones - 100pf, 330pf) that are more commonly ceramic - can these be ceramic here or are you suggesting they need to be film? Also for the 33pf cap you specify is for the clock oscillator, is this C7? Does it need to be polystyrene? Doesn't look like an integrator cap to me but wanted to make sure. Do any of these need to be polystyrene/polypropylene?
2) I notice on the CV connection hand-drawn diagram you show an optional B1K "tracking" pot connected to the V/Oct input - what is this control for exactly, since there is already a V/Oct trimmer on the board?
Thanks! |
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jhaible
Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24
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| Posted: Sun Jun 20, 2010 1:11 pm Post subject:
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| numbertalk wrote: | Hi JH, a couple more questions.
1) For the 5mm caps on the bom, some of the lower value ones - 100pf, 330pf) that are more commonly ceramic - can these be ceramic here or are you suggesting they need to be film? Also for the 33pf cap you specify is for the clock oscillator, is this C7? Does it need to be polystyrene? Doesn't look like an integrator cap to me but wanted to make sure. Do any of these need to be polystyrene/polypropylene?
2) I notice on the CV connection hand-drawn diagram you show an optional B1K "tracking" pot connected to the V/Oct input - what is this control for exactly, since there is already a V/Oct trimmer on the board?
Thanks! |
Whatever cap fits on the board, will work.
There is teh usual difference in temerature stability etc., which won't make much difference in a flanger, but might be a tad more important for PM.
You might want to have a V/Oct fine adjustment on the front panel, or you might just want to have a trimmer on the PCB.
JH.
_________________
"I tell you the truth, if anyone says to this mountain, 'Go, throw yourself into the sea,' and does not doubt in his heart but believes that what he says will happen, it will be done for him. Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours." (Mk 11,23f) |
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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
Audio files: 5
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| Posted: Sun Jun 20, 2010 2:17 pm Post subject:
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| Thanks! |
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