[Speex-dev] Using speex pre processor

Tristan Matthews tmatth at videolan.org
Thu Aug 20 16:43:58 UTC 2015

Hi Ankhit,

On Thu, Aug 20, 2015 at 12:06 PM, Ankhit Vivekananda <
ankhit.vivekananda at biscotti.com> wrote:

> Hello,
> I am a newbie and wanted to know if a speex preprocessor, such as a
> DENOISE, can be used with other encoders such as AAC.
> We are developing video cameras using speex codec for encoding and
> decoding audio when placing calls. We also stream live audio/video files
> out of the camera and use AAC encoder for that as the server that we stream
> to supports only AAC. But, the noise level is high even when the
> environment is quiet. Hence, would want to implement a de-noise
> preprocessor from speex to do the same. Will speex pre-processor work when
> using different encoders?
> Please do let me know.

Yes, the speexdsp library is completely independent of the speex codec

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