KVR Audio

Angus_FX · Post by **Angus_FX** » Wed Feb 18, 2015 10:34 am

Interesting, thanks for digging that up. On Strobe2 you can get pretty close to that with the Osc and Sub, now that the sub goes to "0 octaves" offset.

chilly7 · Post by **chilly7** » Wed Feb 18, 2015 12:19 pm

Fxpansion is that possible to implement this that if u use "analog" knob it does not add noise to sound?
Right now i might like sound of "analog knob" in some cases but i do not want noise it adds.

Amberience · Post by **Amberience** » Thu Feb 19, 2015 1:45 pm

Another quick mess about:
https://dl.dropboxusercontent.com/u/630 ... RipOff.mp3

Totally apeing Autechre's 'Amber' album - their only good album if you ask me!!

Drums are Tremor. Synth and bass are just two Strobe 2's.

Angus_FX · Post by **Angus_FX** » Mon Feb 23, 2015 10:30 am

Hi chilly7,

Most of the sound of the analog knob comes from it injecting noise in to different parts of the circuit. So I'm not sure how we could do it without noise! Any particular aspect of it you like more than the others?

scintillator · Post by **scintillator** » Mon Feb 23, 2015 10:48 am

Angus_FX wrote:Hi chilly7,

Most of the sound of the analog knob comes from it injecting noise in to different parts of the circuit. So I'm not sure how we could do it without noise! Any particular aspect of it you like more than the others?

By changing it to add drift, or imprecision, or fluctuation, or variation, or modulation to the processes it is affecting. Not noise. There's nothing inherently analog about noise.

Edit: A quick example: Poly-Ana.

dave dove · Post by **dave dove** » Mon Feb 23, 2015 12:24 pm

http://en.wikipedia.org/wiki/Johnson%E2 ... uist_noise

dave

scintillator · Post by **scintillator** » Mon Feb 23, 2015 12:44 pm

So it seems we've uncovered a misconception, or a mislabeling. For me, 'analog' means (in this case) a control that adds analog-inspired (or emulated) non-linearity to processes, not analog noise. If really all it does is add noise, then it should be labeled accordingly.

Angus_FX · Post by **Angus_FX** » Mon Feb 23, 2015 2:11 pm

Analog-emulated non-linearity is in there all the time. "Drift", "Fluctuation" etc . are arguably noise of one sort or another.

To be clear, it's not just adding hum or noise to the output. It's there in the control circuitry as well, for example, and at various places along the signal path.

If what you want is drift or per-voice randomness or imprecision, there are mod sources in TransMod which allow you to do just that.

chilly7 · Post by **chilly7** » Mon Feb 23, 2015 4:14 pm

Angus_FX wrote:Analog-emulated non-linearity is in there all the time. "Drift", "Fluctuation" etc . are arguably noise of one sort or another.

To be clear, it's not just adding hum or noise to the output. It's there in the control circuitry as well, for example, and at various places along the signal path.

If what you want is drift or per-voice randomness or imprecision, there are mod sources in TransMod which allow you to do just that.

Whuold u be very nice to tell what sethings must be to do that in TransMod ?

Angus_FX · Post by **Angus_FX** » Mon Feb 23, 2015 4:17 pm

Look in the "Random" column in TransMod, you'll find Drift, Rand1, VMRand etc., full descriptions of all of them in the manual.

Note that these sources all run at control rate (~1ms update rate, with additional per-sample smoothing on critical parameters), but absolutely what you need for modelling drift or per-voice variation.

chilly7 · Post by **chilly7** » Mon Feb 23, 2015 7:06 pm

Angus_FX wrote:Look in the "Random" column in TransMod, you'll find Drift, Rand1, VMRand etc., full descriptions of all of them in the manual.

Note that these sources all run at control rate (~1ms update rate, with additional per-sample smoothing on critical parameters), but absolutely what you need for modelling drift or per-voice variation.

Thank u.

AdmiralQuality · Post by **AdmiralQuality** » Thu Mar 05, 2015 12:58 am

scintillator wrote:
Angus_FX wrote:Hi chilly7,

Most of the sound of the analog knob comes from it injecting noise in to different parts of the circuit. So I'm not sure how we could do it without noise! Any particular aspect of it you like more than the others?
By changing it to add drift, or imprecision, or fluctuation, or variation, or modulation to the processes it is affecting. Not noise. There's nothing inherently analog about noise.

Edit: A quick example: Poly-Ana.

And that "drift" is actually based on a noise algorithm, though weighted in such a way to tend to prefer the "center". I made it so at full Analog Drift notes would drift to an approximate maximum of about 50 cents out, sharp or flat.

Another interesting feature of Poly-Ana's drift implementation is that when it's zeroed, the drifts reset to perfectly centered. So if you turn it to 0, then immediately back up to 10, it'll still be in tune and will only then begin to start drifting the oscillators and filters off from their ideal frequencies. Leave it on 10 for a long while though and everything will go dramatically out of tune, but you can always scale it back by dialing down (just don't hit zero, or it resets as well as scales the drift to nothing, meaning it will take time to build up again if you turn it back up).

A bit confusing but should become apparent if you play with it a bit. It's actually a feature that can be used to great effect in a performance, "loosening" and "tightening" tuning as you require it.

Poly-Ana has no analog noise feature (though there is a noise oscillator, of course). I might put one in Poly-Ana 2.x.

chilly7 · Post by **chilly7** » Fri Mar 06, 2015 11:06 am

So as i understan in Amber 2 is violin 4 is viola and 8 is cello. But do u think guys it would be nice if they add contra bass and octa bass too to Amber?

chroma · Post by **chroma** » Fri Mar 06, 2015 3:42 pm

scintillator wrote:So it seems we've uncovered a misconception, or a mislabeling. For me, 'analog' means (in this case) a control that adds analog-inspired (or emulated) non-linearity to processes, not analog noise. If really all it does is add noise, then it should be labeled accordingly.

you're thinking audio noise injection... this is not noise added to the audio, this is noise added to the _control_ signal.

imagine e.g. a triangle wave used as an LFO to modulate a filter. in a vst, this is an absolutely perfect triangle wave; in a real synth, that triangle wave will have some small amount of noise on it which will keep it from being an absolutely perfect triangle, which will mean the filter doesn't go up and down perfectly linearly.

the LFO itself also has a frequency control (cv in), and that also has noise on it, meaning that the actual frequency will modulate up and down by a small amount.

(drift is not really related to noise - it's actually (usually) related to circuits changing as the temperature goes up and down, since e.g. the actual resistance of most resistors are temperature-dependent... the difference is that noise is basically random but centered around the intended point, whereas drift actually moves the center somewhat permanently ... i.e. if you tune your synth, noise on the VCO CV input will cause minor modulation of the pitch, but a C3 is still more or less a C3. drift doesn't really cause the modulations, but if the temperature rises, that C3 may change by some cents up or down, and it will be wrong the same way every time you play it until you tune again. ).

scintillator · Post by **scintillator** » Mon Mar 09, 2015 9:55 am

This turned into a nice little discussion. Thanks, guys, you're so knowledgeable!

All good things come to those who wait.. the Synth Squad 2 thread