[Speex-dev] A question in the document of wide-band encoding.

Jean-Marc Valin jean-marc.valin at usherbrooke.ca
Tue Aug 17 19:33:42 PDT 2010

The three bits are only for the high band. There are still four mode 
bits for the lower band. A wideband stream is made up of a narrowband 
stream and a high-band stream.


On 10-08-16 01:22 AM, ChengWei wrote:
> Dear Jean-Marc:
> in Section Speex wideband mode (sub-band CELP), Subsection Bit
> allocation of the speex manual, you pointed out that the mode ID of
> wideband is 3 bits (it is consistent with the source code), however,
> in the following table (Table Quality versus bit-rate for the wideband
> encoder), there are 11 different modes (from 0 to 10).  I am confused
> about this inconsistency, as 3 bits can only provide 0 to 7. Did I
> miss something in the document? Thanks a lot in advance.
> Best Regards,
> Cheng Wei
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