hi again
i've come a bit closer to the source of the problem:
when i load patch that contains a [sqosc~], whose first inlet~ is connected with a tilde-object, that sends a zero-signal immediately after loading the patch (e.g [line~]), the first outlet~ of [sqosc~] sends a 'nan' (not a number?). at least, this is what [env~]-[nbx] tells me. when i change the frequency to some non-zero value and change it back to zero, [env~]-[nbx] says '96.47', which is the expected value, i think. i assume, this 'nan'-signal is the reason, why my jackd goes crazy. the problem does not occur anymore when i send [0.001, 0 1( to the [line~] on loadbang.
i attached a little test-patch to show you, what happens here. i couldn't test it on other systems/versions of pd/audio-apis.
roman
On Sun, 2007-03-25 at 21:46 -0400, Martin Peach wrote:
Chris McCormick wrote:
On Sun, Mar 25, 2007 at 07:23:13PM +0200, Roman Haefeli wrote:
[sqosc~]. it can happen, that after loading the patch, pd is sending constantly a dc to my soundcard. even when i close pd, the dc stays on these channels, where pd was connected before over jack. to get rid of
This happens on my laptop and I am pretty sure it occurs on a hardware level (in my case). The DC is present sometimes after just playing half an mp3 file and then hitting ctrl-C, and definately happens when doing stuff in Pd sometimes.
How can you guys tell if there's DC in the signal? I'd love to get a sound card that outputs DC!
Martin
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