Hmm, that's a strange bug.  I can't reproduce this on a Mac/Intel, but I could on another 1.67GHz Mac runing 10.4.10  My guess is that it's another manifestation of that same 1.67 Mac audio bug.  It worked fine for me using the latest Pd-0.40.3-extended nightly build:

http://autobuild.puredata.info/auto-build/2007-08-01/Pd-0.40.3-extended-20070801-macosx104-powerpc.dmg

.hc

On Aug 1, 2007, at 2:24 PM, Ed Richardson wrote:

Browser/Audio Examples/I04.noisegate.pd causes a complete failure of audio in Pd-0.39.3-extended-rc5-macosx104-powerpc.dmg.

system:
mac os 10.4.10
1.67 GHz PowerPC G4

Upon adjusting either the sampler or noise amplitude parameters, there is a fairly loud single pop, upon which all audio ceases on the computer altogether. Audio will only resume once I quit Pd.

Neither of the following strategies in any combination improve this situation:
48K instead of 44.1K
use of JACK rather than portaudio

I believe several other fft-based patches are affected by this.

This is not a problem in any of the following:
38.4-extended
39.2-non-extended
40.2-non-extended

---

Also, I'm curious what anyone knows about the frequent Pd-related audio card issues with the 1.67 GHz PowerPC G4 Powerbook.
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