[maxmsp] new user, probably a simple question

On Sep 9, 2007, at 2:41 PM, Stefan Tiedje wrote:


<schnip>

> What you want is an envelope follower and then invers that level to  
> multiply it with your sine wave from cycle~...

It could be the lack of sleep, but the "inverse" isn't right. If you  
want the sine wave to play when there is sound coming in thru the  
mic, then use the amplitude of the signal (not the inverse of the  
amplitude...which I guess you mean 1 - amplitude?) to control the  
volume of the sine wave. What you are suggesting would be a ducker (a  
useful application in itself, but not what the original poster was  
trying to do).  And I still think peakamp~ is the best object to use  
for driving this (vs. abs~). Jeff Kaiser's patch from earlier is a  
good example.  His uses a threshold to trigger an either all on or  
all off sine wave. Or you could simply remove the ">0.2" and connect  
peakamp~ directly to *~ to get a more variable volume control.


HTH,
David