Re: Extending MediaRecorder to record from Web Audio node faster than real time?

On Fri, Aug 29, 2014 at 2:05 AM, Jim Barnett <1jhbarnett@gmail.com> wrote:

> On Aug 27, 2014, at 9:55 PM, "Robert O'Callahan" <robert@ocallahan.org>
> wrote:
>
> On Thu, Aug 28, 2014 at 4:05 AM, Harald Alvestrand <harald@alvestrand.no>
> wrote:
>
>>  On 08/27/2014 05:57 PM, Chris Wilson wrote:
>>
>> Is a MediaStream (and Recorder) going to be happy about having its number
>> of channels changed in mid-stream?
>>
>>
>> MediaStreams can have tracks added and removed at any time; they're
>> rather flexible.
>>
>
> True, but don't confuse adding tracks with adding channels. A MediaStream
> derived from an AudioNode always has one track, but the number of audio
> channels in that track could change over time.
>
> So the question is, what should a MediaRecorder do if the number of
> channels in an audio track changes and the format it's recording to can't
> handle that? (Note that this is not a new issue;
> MediaStreamAudioDestinationNode already introduced it.)
>
> I think we should spec that if the format doesn't support changing the
> number or layout of channels, then we keep recording with the initial
> layout and automatically remix the audio to fit.
>
> >> Who would automatically remix the audio?  The MediaRecorder?
>

Yes.

Rob
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Received on Thursday, 28 August 2014 23:42:20 UTC