[Speex-dev] AEC diagnistics generated files

Mihai Balea mihai at hates.ms
Wed Dec 5 08:12:32 PST 2007

On Dec 4, 2007, at 5:49 PM, Dmitry Nikitin wrote:

> 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

You might want to try a different Audio I/O.  We use Direct Sound in  
our systems and AEC seems to work fine with that.
Not sure exactly why this is happening.


-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/pkcs7-signature
Size: 2411 bytes
Desc: not available
Url : http://lists.xiph.org/pipermail/speex-dev/attachments/20071205/ac4e33fa/smime.bin

More information about the Speex-dev mailing list