[payload] Antw: Re: I-D Action: draft-ietf-payload-rtp-aptx-00.txt

"Heinz Peter Reykers" <HeinzPeter.Reykers@WDR.DE> Mon, 12 August 2013 20:49 UTC

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Date: Mon, 12 Aug 2013 22:48:56 +0200
From: Heinz Peter Reykers <HeinzPeter.Reykers@WDR.DE>
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Subject: [payload] Antw: Re: I-D Action: draft-ietf-payload-rtp-aptx-00.txt
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Hello all,    
          
          
          the implementation of the algorithm enhanced apt-X for low
delay transmissions in radio is a very important task for codec
manufacturers. In german public radio and television landscape a couple
of different units already exists, delivered from different codec
manufacturers. When they are used for contribution of audio content it
is a high priority aim to guaranty the interoperability of these codecs
from different manufacturers to each other. This can only be made
properly by using the same rfc within the prerequisites and instructions
how to implement this algorithm and the belonging signaling. The
european broadcasting union EBU created a technical document, putting
together all the different rfc's for the mandatory, recommend and
optional functions each codec for audio-over-IP use must/should have.   
 
          
          
          Therefore we urgently need this new rfc as an accepted and
distributed document, because interoperability between different codecs
is very important for the german broadcasters in radio as well as in tv.
   
          
      
          
          Kind regards    
          
          
          Heinz Peter Reykers    


____________________________________


Dipl.-Ing. Heinz Peter Reykers

Westdeutscher Rundfunk Köln
Programmverbreitung / WAN
Audio-Encoding, Kontribution
Appellhofplatz 1, 50600 Köln

Tel.: +49 (0)221 220 - 4183
Fax: +49 (0)221 220 - 774183
mobil: +49 (0)172 251 3066

e-mail: heinzpeter.reykers@wdr.de

Archivhaus 1331
>>> Michel Quaix  12.08.13 17.09 Uhr >>>
We, at Digigram, have implemented this draft in our audio codecs. It
works and we need it to guaranty the interoperability with codecs from
other manufacturers, so I support adopting this draft.

Regards,
Michel QUAIX
Software Group Manager and Solution Specialist,
Phone: +33 (0)4 76 52 47 47
DIGIGRAM
Innovallée, 82-84 Allée Galilée,
38330 MONTBONNOT SAINT-MARTIN,
FRANCE



2013/3/13  <internet-drafts@ietf.org>

A New Internet-Draft is available from the on-line Internet-Drafts
directories.
 This draft is a work item of the Audio/Video Transport Payloads Working
Group of the IETF.

        Title           : RTP Payload Format for Standard apt-X and
Enhanced apt-X Codecs
        Author(s)       : John Lindsay
                          Hartmut Foerster
        Filename        : draft-ietf-payload-rtp-aptx-00.txt
        Pages           : 22
        Date            : 2013-03-13

Abstract:
   This document specifies a scheme for packetizing Standard apt-X, or
   Enhanced apt-X, encoded audio data into Real-time Transport Protocol
   (RTP) packets.  The document describes a payload format that permits
   transmission of multiple related audio channels in a single RTP
   payload, and a means of establishing Standard apt-X and Enhanced
   apt-X connections through the Session Description Protocol (SDP).


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-payload-rtp-aptx

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-payload-rtp-aptx-00


Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/

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