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Re: echoCancelation (sic)

From: Randell Jesup <randell-ietf@jesup.org>
Date: Thu, 03 Apr 2014 01:16:25 -0400
Message-ID: <533CEEA9.10705@jesup.org>
To: public-media-capture@w3.org
On 4/2/2014 11:21 AM, Harald Alvestrand wrote:
> On 04/02/2014 04:28 PM, Cullen Jennings (fluffy) wrote:
>> three things
>>
>> 1) if itís spelled wrong, lets fix it now - I donít want to accept two spellings that is lame
> agreed!
>> 2) AEC needs tone on by default
> "to be on", I guess
>> 3) I seem to recall that the IETF specs required all WebRTC implementations to support AEC so not worried about case where something does not implement it.
> Yep. From the use-cases-and-requirements draft, browser requirements:
>
>     F7     When there are both incoming and outgoing audio
>             streams, echo cancellation must be made
>             available to avoid disturbing echo during
>             conversation.

I'll note that's from rtcweb IIRC, which is not the same as 
getUserMedia() - but I agree the default should be AEC on to avoid 
surprises.  (I'm also fine if the UA knows there's no output stream 
available for AEC and disables AEC, there's no practical negative impact.)


-- 
Randell Jesup -- rjesup a t mozilla d o t com
Received on Thursday, 3 April 2014 05:17:18 UTC

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