[Freeswitch-users] Is there Sampling rate conversion CPU penalty?

[Muhammad Naseer Bhatti]

Ok Awesome. So the transcoding from one sampling rate to other is expensive
and does takes some CPU cycles, correct?

-- 

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From: Anthony Minessale <anthony.minessale at gmail.com>
<anthony.minessale at gmail.com>
Reply: FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
<freeswitch-users at lists.freeswitch.org>
Date: July 28, 2017 at 11:03:18 PM
To: FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
<freeswitch-users at lists.freeswitch.org>
Subject:  Re: [Freeswitch-users] Is there Sampling rate conversion CPU
penalty?

Pro tip:

If the file path is /var/sounds/example.wav

you can create

/var/sounds/8000/example.wav
/var/sounds/16000/example.wav
/var/sounds/32000/example.wav
/var/sounds/48000/example.wav

And it will auto-select the correct one that matches the sample rate of
that call.





On Fri, Jul 28, 2017 at 2:53 PM, Tayeb Meftah <tayeb.meftah at gmail.com>
wrote:

> Hey,
> The best practice is to transcode your wave files to the diferent rates
> your clients use
> If your clients are only on pstn side, 8khz should be enough
> If your clients is on sip side, better to generate 8, 16,32, and 48khz
> (mono) files
> Converting rate is a cpu intencive task and its part of transcoding, so
> its not recomanded...
> Thanks.
>
> Envoyé de mon iPad
>
> Le 28 juil. 2017 à 20:24, Muhammad Naseer Bhatti <nbhatti at gmail.com> a
> écrit :
>
> Hi, I am streaming a wav file who’s sampling rate is 44100 and FreeSWITCH
> says sample rate 44100 doesn't match requested rate 8000. So I think it’s
> doing the conversion here. If so, is there any CPU performance penalty
> while doing the conversion? What’s the best practice here should I change
> the sampling rate of the file or just leave it like that?
>
> --
>
> Sent with Airmail
>
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--
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