Looper's Delight Archive Top (Search)
Date Index
Thread Index
Author Index
Looper's Delight Home
Mailing List Info

[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Date Index][Thread Index][Author Index]

Re: Zipper Noise, an example



Per Boysen schrieb:
> Smothing was the first fix I tried with the FireworX, but it did not 
> change the noise.

I doubt that you can set smoothing in the fireworx, because that's 
something which has to be done internally, it will create the missing 
inbetween values for the volume. As Midi values will be at least 0.6 ms 
appart you'd have to do this always.

> Anyway, I did a check on what you said about overtone/treble rich 
> sounds. But there is no difference to the noise added by moving the 
> pedal when I feed the box low notes with no treble and when I feed it 
> high and sparkly stuff.

They don't get masked? Maybe its noise on the pedal itself, kind of 
jittering while moving. A crackling sensor would create jumping values.
Did you try with a different Pedal?

> Applications I have been using a lot and where I have never noticed any 
> such zipper noise when controlling a continuous parameter with a MIDI 
> CC# are Logic and Numerology. Logic has a fader resolution far higher 
> than the 128 steps of MIDI and Numerology has a built-in "scaling" (i.e. 
> what you call "smoothing").

I refer to smoothing as a ramp of maybe 10 or 20 ms in audiorate (much 
faster than Midi ;-) creating 44/88 values between two Midivalues. This 
would also smooth out sudden jumps caused by a crackling Pedal...

I bet Logic is using this. They need for other reasons some smoothing 
algorithms, to limit the number of events they want to store into a 
track. (You should be able to switch this off though...)

Stefan

-- 
Stefan Tiedje------------x-------
--_____-----------|--------------
--(_|_ ----|\-----|-----()-------
-- _|_)----|-----()--------------
----------()--------www.ccmix.com