[Freeswitch-users] Fine tuning Opus in dialplan

[Emrah]

Hi guys,
Opus has different aptitudes and advantages depending on what segment of the audio bandwidth it is operating on. 
For narrowband calls, why engage the full 48kHz spectrum? This has an impact in so many places, Internet bandwidth, transcoding CPU usage, internal audio sampling frequency, AEC... 
The setting is available globally anyway. I do believe it would make sense to have it in the dialplan.

Emrah
> On Feb 10, 2015, at 11:59 PM, Brian West <brian at freeswitch.org> wrote:
> 
> Why not just set the record_sample_rate variable?
> 
> On Tue, Feb 10, 2015 at 3:42 PM, Emrah <lists at kavun.ch <mailto:lists at kavun.ch>> wrote:
> Hi,
> I use Opus even for narrowband calls because of all its bells and whistles that PCM doesn't have. The trouble is that I always end up negotiating a crazy sampling rate, more demanding in every way and not necessary for a basic narrowband call. I know this because if I record the call, one leg is recording a full 48kHz audio that is unbelievable and the other one is a regular 8kHz sad PSTN call. I have 40kHz going to waste here.
> I see issue 6947 seems to be talking about the same thing and was wondering if something had been done about it.
> https://freeswitch.org/jira/browse/FS-6947 <https://freeswitch.org/jira/browse/FS-6947>
> 
> It shows it's been solved, but I cannot see any dialplan variables I could set to fine tune my Opus codec negotiation.
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