dnealelo

I'm working on an additive poly synth. The additive part is based on 10 [cycle~] objects operating in parallel based on the overtone series (1/1, 1/2, 1/3, 1/4, etc.) and having their frequencies relative to each other stretched by some factor between 1 (no stretching) and 1.125 (a more or less arbitrary upper limit based on how it sounds). The amplitude of each [cycle~] object is determined by its place in the overtone series -- again, 1/1, 1/2, 1/3, 1/4, etc. In other words, unstretched, they sum to a low-overtone sawtooth wave. The stretching gives the timbre a bell-like quality.

So: this synth is setup in a subsynth in a [poly~] object. The ADSR is in the subsynth and set by arguments to [adsr~ 10 2000 0. 0], again, with the intention of making a bell-like profile. My problem is that when a note is triggered before the 2 sec. decay is over, the new trigger only activates the fundamental in the additive synth. For example, if I hit a Bb and then an A, the Bb trigger initiates all 10 oscillators, but the A only triggers the 220Hz, so it sounds kind of "bong-thumm," rather than "bong-bong."

I feel like I'm making a rookie mistake in here somewhere (which would be appropriate as I am decidedly not a programmer and relatively new to this), but I've sorted through all I can think of. I've pasted the patch below; I'd be grateful for any suggestions (including those not related to this question) that you might have.

I'm working on an additive poly synth.  The additive part is based on 10 [cycle~] objects operating in parallel based on the overtone series (1/1, 1/2, 1/3, 1/4, etc.) and having their frequencies relative to each other stretched by some factor between 1 (no stretching) and 1.125 (a more or less arbitrary upper limit based on how it sounds).  The amplitude of each [cycle~] object is determined by its place in the overtone series -- again, 1/1, 1/2, 1/3, 1/4, etc.  In other words, unstretched, they sum to a low-overtone sawtooth wave.  The stretching gives the timbre a bell-like quality.  

So:  this synth is setup in a subsynth in a [poly~] object.  The ADSR is in the subsynth and set by arguments to [adsr~ 10 2000 0. 0], again, with the intention of making a bell-like profile.  My problem is that when a note is triggered before the 2 sec. decay is over, the new trigger only activates the fundamental in the additive synth.  For example, if I hit a Bb and then an A, the Bb trigger initiates all 10 oscillators, but the A only triggers the 220Hz, so it sounds kind of "bong-thumm," rather than "bong-bong."  

I feel like I'm making a rookie mistake in here somewhere (which would be appropriate as I am decidedly not a programmer and relatively new to this), but I've sorted through all I can think of.  I've pasted the patch below; I'd be grateful for any suggestions (including those not related to this question) that you might have.

adsr-working-only-on-one-oscillator-on-retrigger

In the process of continuing to troubleshoot this, I've modified the patch considerably. Here is the updated version:

One thing I've discovered is that what I thought it was doing is not actually what it's doing: it's not the fundamental that sounds with a retrigger -- I don't know where the oscillation is coming from but it's not the fundamental [cycle~] object. If you hit the same key repeatedly, it doesn't always play the same pitch; at first it plays what sound like random notes, then increasingly begins to repeats the same note. I've watched the input for the fundamental [cycle~] object and it responds the same way the [cycle~] objects for the partials respond, only once the [adsr~] envelope has completed its cycle.

So, there are now two problems to solve here: first how can I get a set up so that I can retrigger an envelope before it's complete and, second, what is the source of this other sound? The former I will continue to work on (going back to look at some other implementations of [poly~] that use [line~] instead of [adsr~], for one) in the hopes that fixing it will resolve the latter, but I'd be grateful for any guidance you all can provide.

In the process of continuing to troubleshoot this, I've modified the patch considerably.  Here is the updated version:

One thing I've discovered is that what I thought it was doing is not actually what it's doing:  it's not the fundamental that sounds with a retrigger -- I don't know where the oscillation is coming from but it's not the fundamental [cycle~] object.  If you hit the same key repeatedly, it doesn't always play the same pitch; at first it plays what sound like random notes, then increasingly begins to repeats the same note.  I've watched the input for the fundamental [cycle~] object and it responds the same way the [cycle~] objects for the partials respond, only once the [adsr~] envelope has completed its cycle.  

So, there are now two problems to solve here:   first how can I get a set up so that I can retrigger an envelope before it's complete and, second, what is the source of this other sound?  The former I will continue to work on (going back to look at some other implementations of [poly~] that use [line~] instead of [adsr~], for one) in the hopes that fixing it will resolve the latter,  but I'd be grateful for any guidance you all can provide.


Please post the poly~ patcher as well and i'll take look!

Here are the contents of the [poly~] object:

The patchers in the previous posts contain this, of course, for context, if that's helpful. I appreciate your willingness to take a look!

The patchers in the previous posts contain this, of course, for context, if that's helpful.  I appreciate your willingness to take a look!

Maybe setting the note stealing attribute with @steal 1? Like: 

Maybe setting the note stealing attribute with @steal 1?  Like: 


ADSR working only on one oscillator on retrigger