[opus] Audio quality for or different samping rates but same audio bandwidth
Dan Arrhenius
dan at keystream.se
Wed Mar 27 05:39:12 PDT 2013
Hi,
I wrote a small test program to illustrate the problem. But when using the test program we get expected quality, so we must be doing something wrong in out original code. I will have a closer look at out original code to see what we are doing wrong.
Best regards,
Dan
>The other important question is whether the problem happens when you
>encode at 24k or when you decode at 24k.
>
> Jean-Marc
>
>On 03/21/2013 11:35 PM, Benjamin Schwartz wrote:
>>/ Could you be a little more explicit about what OPUS/24000 means? Are you
/>>/ calling libopus from C, or using some other encoding method? What does
/>>/ "audio bandwidth set to narrowband" mean? What version of libopus are
/>>/ you using?
/>>/
/>>/
/>>/ On Thu, Mar 21, 2013 at 9:51 AM, Olle Frimanson
/>>/ <olle.frimanson at keystream.se <http://lists.xiph.org/mailman/listinfo/opus> <mailto:olle.frimanson at keystream.se <http://lists.xiph.org/mailman/listinfo/opus>>> wrote:
/>>/
/>>/ Hi,____
/>>/
/>>/ __ __
/>>/
/>>/ We have observed a noticeable difference in audio quality for
/>>/ OPUS/24000 with audio bandwidth set to narrowband mode compared to
/>>/ OPUS/8000. The observation was that OPUS/8000 have better quality
/>>/ compared to OPUS/24000 in nb mode.____
/>>/
/>>/ __ __
/>>/
/>>/ All other settings was the same is this expected behavior?*/____/*
/>>/
/>>/ */__ __/*
/>>/
/>>/ __ __
/>>/
/>>/ BR/Olle____
/>>/
/>>/
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/>>/
/
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