[chuck-users] WvOut: writes soundfile, but always silent

[Spencer Salazar]

Hey Nick/Joel,

It looks like 1.3.0.0 introduced a few problems with WvOut. Im going
to post a bugfix release later today, but for now you can work around
the issues by modifying your example like so:

Noise whitenoise => dac;
whitenoise => WvOut waveOut => blackhole;
0.5 => whitenoise.gain;
"testchuckoutput"=>waveOut.aifFilename;
// undocumented fileGain parameter sets output gain of resulting audio file
1 => waveOut.fileGain;
2::second => now;
// waveOut.closeFile();
// dont explicitly close file; file implicitly closed at shred exit

Let me know if there are any additional questions/confusions in this
regard, and thanks for letting us know about this!

spencer


On Mon, Aug 27, 2012 at 7:22 AM, Joel Matthys <jwmatthys at yahoo.com> wrote:
> Same here. I can't get WvOut to work in chimera on Linux. Simple example
> which works on 1.2.1.3:
>
> Noise n => dac => WvOut rec => blackhole;
> 0.25 => n.gain;
> "rec_test" => rec.wavFilename;
> 2::second => now;
> rec.closeFile();
>
> but with 1.3.0.0 I have to abort with ctrl+c and get:
>
> chuck: chuck_oo.cpp:125: void Chuck_VM_Object::release(): Assertion
> `m_ref_count > 0' failed.
>
> and silent audio file. No success with WvOut2 either.
>
> Different issue, but I also get this often when chuck is exiting:
>     terminate called after throwing an instance of 'RtError'
>     Aborted (core dumped)
> (the chirp.ck example in the basic folder always gives this error)
>
> Joel
>
> On 08/26/2012 05:10 PM, chuck-users-request at lists.cs.princeton.edu wrote:
>>
>> Thanks Joel.
>>
>> Unfortunately, sorry, that doesn't help, on either example.
>>
>> I do now get a freeze at
>> fCoreAudioDriverUID AppleHDAEngineInput:8,0,1,0:1
>>
>> if I then press ctrl+c I get:
>> ^C[chuck]: cleaning up...
>>
>> which never exits.
>>
>> Does anyone have any minimal code example of a single file which creates a
>> sound with ChucK, and writes out a sound file from it, that definitely works
>> on their system for chimera? Perhaps I'm missing another parenthesis, or
>> some other function call. The examples from the help tutorial, examples
>> folder rec.ck file, mailing list etc might need updating?
>>
>> best,
>> Nick
>
>
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