[Speex-dev] How to generate confort noise?

kubrick at fgv6.net kubrick at fgv6.net
Tue Jun 5 02:54:58 PDT 2007


You should use the same instance of the decoder (SpeexBits), the "comfort noise" will be generated using previous frames.
If you use a separate instance, it's very likely it will output nothing (except zeros :p)

Yes, to accomplish this, pas a NULL pointer to speex_decode with the corresponding SpeexBits.


> Can i use a separate instance of the decoder passing NULL to generate white noise or something that is similar to confort noise?
> I need to feed it to my output audio autput device for each frame i don't receive in time.
> Or should i just use the same decoder instance of voice and just pass NULL when i discard or loss frames? Is that the best way?
> How can i accomplish this purpose?
> Thanks.
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