SynthMaker

VCA ambiguity...

Archive · 2006 5 old posts

From the original SynthMaker forum (2004–2014), with its members’ names and dates.

doug4350 ·

Howdy folks,

I'm becoming more and more unclear how the stream maths relate to frequency as opposed to amplitude. I was picking apart the detuner and noticed underneath it used a vca, the 'in' being fed by the signal and the 'level' being fed by the 'fine' and 'octave' feeds from the detune component. I have a feeling I'm getting mixed up in terminology.

Is there something more to before feeding an osc, any maths affect frequency and any maths after an osc affect amplitude???

I hope that's a clear enough question, my mind is still spinning a bit from this mixed plate flu virus I've been battling the last few days.

Aloha & happy new year (again)... Doug

stefan ·

The VCA is really just a stream multiply, the name VCA is a bit misleading when not used to control an audio streams volume 🙂

tormodulator ·

I'm bumping this thread because the question links up with mine:

I can't get detuning from the detuner. As far as I can tell, it's a level control. I select +1 octave, and it gets louder. I select -2 octaves, and it gets conciderably softer. The 'fine' knob does nothing that I can detect where I am now... Always in tune, however.

How am I supposed to use this comp?

Shifrin ·

This comp, AFAIK, operates on the 'Freq' of a signal, so you'd insert it before your oscillator(s). It multiples the 'Freq' to shift it up or down so I am guessing you might be trying to use it after your oscillator(s) hence it's multiplying the oscillator(s) output and changing the volume instead 😉

Shif.

tormodulator ·

Shifrin wrote: This comp, AFAIK, operates on the 'Freq' of a signal, so you'd insert it before your oscillator(s). It multiples the 'Freq' to shift it up or down so I am guessing you might be trying to use it after your oscillator(s) hence it's multiplying the oscillator(s) output and changing the volume instead 😉

Shif.

AH!

That was an epiphany!

Many thanks for that, mate!

Wrote something here? To have a post removed or your name hidden, write to [email protected].

Before your first post

A few rules keep this a friendly place. You agree to them once.

Shown next to what you post, here and in the app. It doesn’t have to be your real name: 3–24 lower-case letters, digits or _ (capitals become lower case, spaces become _).

    Then your post goes up straight away.

    Delete this reply?

    Open it in SynthMaker?

    It goes on the track you’re editing there, in place of that track’s sound, and into My sounds. Your other tracks stay as they are.

    Want to keep that track’s sound? Start a new song in SynthMaker first (Song › New song), then open this.

    Report this reply?

    Only the developer reads reports. The person isn’t told who reported them.

    What’s wrong with it?

    Block this person?

    You won’t see their posts and replies here any more. They aren’t told, and you can unblock them at any time.

    People you’ve blocked

    Their posts and replies are hidden from you. Unblock someone to see them again.

    The community rules

    A few rules keep this a friendly place. Everyone agrees to them once, before their first post.