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Re: [payload] draft-lindsay-payload-rtp-aptx-00

"Ali C. Begen (abegen)" <abegen@cisco.com> Tue, 26 February 2013 19:22 UTC

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From: "Ali C. Begen (abegen)" <abegen@cisco.com>
To: John Lindsay <Lindsay@worldcastsystems.com>, "payload@ietf.org" <payload@ietf.org>
Thread-Topic: [payload] draft-lindsay-payload-rtp-aptx-00
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Date: Tue, 26 Feb 2013 19:22:40 +0000
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Cc: "Foerster@worldcastsystems.com" <Foerster@worldcastsystems.com>
Subject: Re: [payload] draft-lindsay-payload-rtp-aptx-00
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Authors, 

A new milestone for the aptx codecs has been added. When the submission
site opens again, please submit the WG version of your document.

Thanks.
-acbegen

-----Original Message-----
From: John Lindsay <Lindsay@worldcastsystems.com>
Date: Thursday, January 31, 2013 9:35 AM
To: "payload@ietf.org" <payload@ietf.org>
Cc: Hartmut Foerster <Foerster@worldcastsystems.com>, "Ali C. Begen"
<abegen@cisco.com>
Subject: [payload] draft-lindsay-payload-rtp-aptx-00

>Hi 
>
>We would like to ask for the doc "draft-lindsay-payload-rtp-aptx-00" to
>be considered by the working group for adoption as a proposed standard.
>
>The document has been in existence since its first draft in April 2008
>and has been updated by various members of APT following comments within
>the workgroup over the past 5 years and is now implemented by a number
>of Audio Codec manufactures mainly in the Broadcast sphere.
>
>A brief history of the doc is as follows.
>
>draft-gmassey-avt-rtp-aptx-01, (Submitted 15th Apr 2008), (Expired 17th
>October 2008).
>draft-trainor-avt-rtp-aptx-00, (Submitted 22nd December 2009), (Expired
>25th June 2010)
>draft-rea-payload-rtp-aptx-00 (Submitted  18th April 2011)
>draft-rea-payload-rtp-aptx-01 (Submitted  7th October 2011)
>draft-rea-payload-rtp-aptx-02 (Submitted  7th March 2011), (Expired 7th
>September 2012)
>draft-lindsay-payload-rtp-aptx-00 (Submitted 28th November 2012)
>
>The RFC was generated originally in response to our work with the EBU
>(European Broadcasting Union) N/ACIP (Audio Contribution over IP)
>workgroups and their attempts to standardise transmission of packetized
>audio data over RTP to ensure compatibility between Audio Codec
>manufacturers.
>No standard method of packetizing the apt-X and Enhanced apt-X algorithm
>was available and the doc seeks to address this along with the
>appropriate SDP messages to facilitate compatible call signalling.
>
>http://www.ebu-acip.org/Main_Page
>
>Whilst the documents have generated a number of responses and driven a
>number of the N/ACIP members and interested parties towards both the
>payload and AVT workgroups, the number of interested parties is always
>going to be limited as there are only a finite number of codec
>manufacturers and hence N/ACIP members.
>
>As you can see from the above we hope the doc has reached a level of
>maturity required for WG adoption.
>
>Many thanks for your time.
>
>Regards
>
>John Lindsay
>
>

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