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Re: [rtcweb] RTCWEB needs an Internet Codec

Stefan Hakansson LK <stefan.lk.hakansson@ericsson.com> Thu, 30 August 2012 14:15 UTC

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Date: Thu, 30 Aug 2012 16:15:07 +0200
From: Stefan Hakansson LK <stefan.lk.hakansson@ericsson.com>
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Subject: Re: [rtcweb] RTCWEB needs an Internet Codec
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On 08/30/2012 02:51 PM, Harald Alvestrand wrote:
> On 08/30/2012 02:38 PM, DRAGE, Keith (Keith) wrote:
>> Surely that argument extends to every possible codec.
> The set of MTI codecs should cover the set of use cases that have
> been identified. Additional MTI codecs that don't cover new use cases
> shouldn't be added.
>
> I believe the use case "distributed music band" in
> draft-ietf-rtcweb-use-cases-and-requirements can't be satisified with
> G.711.

I would argue that for most of the use cases (except those where the 
browser is used to interop with PSTN) the expected quality can't be 
satisfied with G.711. A wideband capable codec at the very least is needed.

Another story is that I think that this is not the right time to mandate 
a codec that meets the quality expectations (and I said why I think so 
in [1]).

[1] http://www.ietf.org/mail-archive/web/rtcweb/current/msg05148.html

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