Re: [LAU] VocProc - vocal processing app

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To: Giorgio - Audiophilo <anomalsound@...>
Cc: Arnold Krille <arnold@...>, <linux-audio-user@...>
Date: Monday, February 1, 2010 - 9:25 pm

On Mon, 1 Feb 2010, Giorgio - Audiophilo wrote:

> Hi,

I think that this is probably the cause:

vproc_dsp_process.cpp:281

// FFTW
double *fftTmpR=(double*)malloc(sizeof(double)*fftFrameSize);
fftw_complex *fftTmpC=(fftw_complex*)fftw_malloc(sizeof(fftw_complex)*fftFr\
ameSize);
fftw_complex *fftOldC=(fftw_complex*)fftw_malloc(sizeof(fftw_complex)*fftFr\
ameSize);
fftw_plan fftPlan;

This is in mydsp::compute()... which is being called from
the JACK process callback.

Per the JACK docs, you must not allocate memory in this
callback. If the system takes too long to allocate the
memory, you will get the 'zombification error.'

The user can sometimes work around the issue by setting a
larger frames-per-period setting (the -p parameter for most
jack audio drivers).

-gabriel

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Messages in current thread:
Re: [LAU] VocProc - vocal processing app, Gabriel M. Beddingfield, (Mon Feb 1, 9:25 pm)
Re: [LAU] VocProc - vocal processing app, Igor Brkic, (Mon Feb 1, 10:34 pm)
Re: [LAU] VocProc - vocal processing app, Giorgio - Audiophilo, (Mon Feb 1, 11:32 pm)
Re: [LAU] VocProc - vocal processing app, Jeremy, (Wed Feb 3, 12:42 pm)
Re: [LAU] VocProc - vocal processing app, Igor Brkic, (Wed Feb 3, 7:17 pm)
Re: [LAU] VocProc - vocal processing app, Jeremy, (Wed Feb 3, 7:34 pm)
Re: [LAU] VocProc - vocal processing app, Atte André Jensen, (Mon Feb 1, 10:44 pm)