[Speex-dev] AEC diagnistics generated files

[Jean-Marc Valin]

It might just be the stdio buffering. Can you try forcing an fclose() at
the end and see if you get equal lengths?

	Jean-Marc

Dmitry Nikitin a écrit :
> Sorry for not being accurate in the original question.
> 
> My testing environment is set to 20ms frames (PCM 16 8 1 to be precise).
> 
> I have verified that all the frames that I feed to the AEC have the
> fixed size of 320 bytes.
> 
> So this is why I am presuming that the the dumped files should be of
> equal size.
> 
> The output signal is good and not distorted. It has echo, though.
> 
> In a try to diagnose that I have followed the documentation and set the
> DUMP_ECHO_CANCEL_DATA compiler variable.
> 
> The canceller generated aec_out.sw, aec_play.sw and aec_rec.sw and they
> all appear to have uneven size.
> 
> Octave complains about the files which is logical as it's trying to
> multiply matrixes that have different dimensions.
> 
> I have checked that tear-downs are made correctly and
> speex_echo_state_destroy() is called after the threads are stopped.
> 
> Any clues, guys?
> 
> Regards,
> Dmitry
> 
> -----Original Message-----
> From: Dmitry Nikitin 
> Sent: Wednesday, December 05, 2007 9:50 AM
> To: 'speex-dev at xiph.org'
> Subject: [Speex-dev] AEC diagnistics generated files
> 
> 
> Hi Guys,
> 
> I am trying to incorporate the speex AEC into my RTP stack.
> 
> Trying to diagnose why the echo is not being cancelled I enabled
> DUMP_ECHO_CANCEL_DATA as per the docs.
> 
> The problem is that the dump files the AEC generates are of different
> size.
> 
> As I understand this and looking at echo_diagnostic.m, the files are
> supposed to be of same size.
> 
> Can someone give me a hint as to why this could be happening?
> 
> Additional info:
> 
> Windows WaveIn/Out API is used to work with a sound device.
> The format is PCM 16 8 2
> 
> Thanks much,
> Dmitry
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