[PD-dev] [ pure-data-Bugs-1821847 ] writesf~ doesn't write sound to files

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Mon Oct 29 00:13:50 CET 2007


Bugs item #1821847, was opened at 2007-10-28 19:12
Message generated for change (Comment added) made by eighthave
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Category: puredata
Group: v0.39.2
Status: Open
Resolution: None
Priority: 9
Private: No
Submitted By: Hans-Christoph Steiner (eighthave)
Assigned to: Miller Puckette (millerpuckette)
Summary: writesf~ doesn't write sound to files

Initial Comment:

I have been wrestling with tracking down why my Swirler program won't record audio.  Most of the time, when I try to use [writesf~] to record, it does not work at all. It creates the file when I send the open message, and I get a file of 44 bytes, then when I click start, and then stop, the file does not change.

Occasionally, it will record about 1-2 seconds of material, no matter when I hit stop.  Very occasionally, it will work fine on its own.

I tried also with the writesf~ help patch, as well as others.  It seems that my program Swirler stops writesf~ from working anywhere.  writesf~ works fine until I run Swirler and click the "start" button, which turns on the DSP and starts the audio processing part.  

This is currently happening on Mac Book Pro/Intel running 10.4.10 with Pd-0.40-2, Pd-0.39.3-extended, and Pd-0.40.3-extended-20071026. This happened previously with Pd-0.39.3-extended-rc? on a PowerMac G5/PowerPC running Mac OS X 10.4.8(ish).

I compiled Pd with DEBUG_SOUNDFILE on to see if I could see what's happening.  You can plainly see it's not writing data to the file.  I found a strange workaround sequence that makes it record, but then the write cycle is strange, it goes in bursts every few seconds rather than a chunk every second.

I attached the swirler program and some transcripts from teh DEBUG_SOUNDFILE stuff.

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>Comment By: Hans-Christoph Steiner (eighthave)
Date: 2007-10-28 19:13

Message:
Logged In: YES 
user_id=27104
Originator: YES

File Added: writesf~-bug_working.txt

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