Would appreciate if someone could explain the following from the msp tutorial:
Notice also that because we will be applying the amplitude envelope twice (once before the fft~ and once again after the ifft~), we take the square root of the envelope values, so we do not have unwanted amplitude modulation resulting from our envelopes (we want the overlapping envelopes to crossfade evenly and always add up to 1).
...i dont understand how taking the the sqrt of the amp. env. could prevent amplitude modulation and
how the envelopes would crossfade evenly and always add up to 1.
Thx for your help & concern!