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Re: [rtcweb] Call for Consensus Regarding Selecting Recommended Audio Codecs

Jean-Marc Valin <jmvalin@mozilla.com> Sat, 22 December 2012 01:00 UTC

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Date: Fri, 21 Dec 2012 20:00:01 -0500
From: Jean-Marc Valin <jmvalin@mozilla.com>
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To: Magnus Westerlund <magnus.westerlund@ericsson.com>
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Cc: "rtcweb@ietf.org" <rtcweb@ietf.org>
Subject: Re: [rtcweb] Call for Consensus Regarding Selecting Recommended Audio Codecs
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- From RFC 2119:

3. SHOULD   This word, or the adjective "RECOMMENDED", mean that there
   may exist valid reasons in particular circumstances to ignore a
   particular item, but the full implications must be understood and
   carefully weighed before choosing a different course.

As Tim pointer out, this is a pretty strong recommendation. I would
prefer something weaker like application-dependent guidelines. For
example, something along the lines of "for compatibility with mobile
phones you MAY support AMR, for ISDN you MAY support G.722" and so on.
If all you care about is communication between two browsers, I don't
think there's any codec that needs a SHOULD. Overall, I think there's
about a dozen codecs that can be useful for some applications, but I
don't see any that's really useful for most people.

Cheers,

	Jean-Marc


On 12/20/2012 03:29 AM, Magnus Westerlund wrote:
> WG,
> 
> As an outcome of the Vancouver IETF meeting codec discussions we
> did promise to run a call for consensus regarding if the WG was
> interested in specifying a small set of recommended audio codecs.
> We are sorry this has been delayed until now.
> 
> The question for the call of consensus is between two options.
> 
> 1) Run a process in the WG to select and specify a small set of 
> audio/speech codecs that would be RECOMMNEDED to implement by a
> WebRTC end-points
> 
> 2) Do nothing and let the already specified Mandatory to Implement
> Audio codecs be the only audio codecs mentioned in the WebRTC
> specification.
> 
> Please indicate your position by January 16th 2013.
> 
> Regards
> 
> Magnus Westerlund
> 
> ----------------------------------------------------------------------
>
> 
Multimedia Technologies, Ericsson Research EAB/TVM
> ----------------------------------------------------------------------
>
> 
Ericsson AB                | Phone  +46 10 7148287
> Färögatan 6                | Mobile +46 73 0949079 SE-164 80
> Stockholm, Sweden| mailto: magnus.westerlund@ericsson.com 
> ----------------------------------------------------------------------
>
>  _______________________________________________ rtcweb mailing
> list rtcweb@ietf.org https://www.ietf.org/mailman/listinfo/rtcweb
> 

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