Re: [MMUSIC] Telephone-event and multiple clock rates

Adam Roach <adam@nostrum.com> Fri, 24 January 2014 15:59 UTC

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Date: Fri, 24 Jan 2014 09:59:39 -0600
From: Adam Roach <adam@nostrum.com>
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To: Magnus Westerlund <magnus.westerlund@ericsson.com>, "Stach, Thomas" <thomas.stach@unify.com>
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Cc: "mmusic@ietf.org" <mmusic@ietf.org>
Subject: Re: [MMUSIC] Telephone-event and multiple clock rates
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On 1/24/14 04:29, Magnus Westerlund wrote:
> My understanding for the reasoning behind this definition in the RFC is
> due to that the events is supposed to be connected to the same time-line
> as the audio. Thus it ended up using the same SSRC. To avoid timestamp
> rate switching which we know has issues
> (https://datatracker.ietf.org/doc/draft-ietf-avtext-multiple-clock-rates/)
> it was mandated to provide one PT for each rate negotiated for the audio
> payload types.

To make sure I understand what you're saying correctly: you are 
asserting that having four different clock rates for voice codecs 
requires us to use four different PTs for telephone-event if we're going 
to have them on the same SSRC. Is that correct?

/a

Re: [MMUSIC] Telephone-event and multiple clock r… Adam Roach
Re: [MMUSIC] Telephone-event and multiple clock r… Magnus Westerlund
[MMUSIC] Telephone-event and multiple clock rates Adam Roach
Re: [MMUSIC] Telephone-event and multiple clock r… Stach, Thomas
Re: [MMUSIC] Telephone-event and multiple clock r… Magnus Westerlund
Re: [MMUSIC] Telephone-event and multiple clock r… Randell Jesup
Re: [MMUSIC] Telephone-event and multiple clock r… Christer Holmberg
Re: [MMUSIC] Telephone-event and multiple clock r… Paul Kyzivat
Re: [MMUSIC] Telephone-event and multiple clock r… Christer Holmberg
Re: [MMUSIC] Telephone-event and multiple clock r… Harald Alvestrand
Re: [MMUSIC] Telephone-event and multiple clock r… DRAGE, Keith (Keith)
Re: [MMUSIC] Telephone-event and multiple clock r… Christer Holmberg