[Freeswitch-users] Conference vs codec sample rate and CPU

Stanislav Sinyagin ssinyagin at gmail.com
Wed Oct 7 00:33:50 MSD 2015

OPUS is an expensive codec, so any conversion between OPUS and
uncompressed audio is CPU-consuming. I don;t think that resampling
would play much of a role in CPU consumption.

On Tue, Oct 6, 2015 at 10:29 PM, Oleg Stolyar <olegstolyar at gmail.com> wrote:
> Hi guys,
> I have a bunch of conferences on my FS.  Users are either G.711/8000 or
> G.722/8000.  Conference sample rate is set to 8000.
> When I switched some users to OPUS instead, the CPU consumption jumped 3-4
> times even though the conference rate is still 8000.  Is this expected?
> I was hoping to be able to save some CPU by setting the conference sample
> rate to auto (so it only used high-quality sampling for users that can
> support it)  but it seems it won't work.  Any ideas?
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