[payload] registration of iSac media subtype
"Roni Even" <ron.even.tlv@gmail.com> Thu, 13 December 2012 06:48 UTC
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From: Roni Even <ron.even.tlv@gmail.com>
To: media-types@iana.org
Date: Thu, 13 Dec 2012 08:45:57 +0200
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Cc: draft-ietf-avt-rtp-isac@tools.ietf.org, payload@ietf.org
Subject: [payload] registration of iSac media subtype
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Hi, The iSac draft is currently in WGLC in the Payload WG http://tools.ietf.org/html/draft-ietf-avt-rtp-isac-02 the media type registration is in section 4 and also included below. Please review the registration. Thanks Roni Even Payload WG co-chair Media type name: audio Media subtype: isac Required parameters: None Optional parameters: * ibitrate: The parameter indicates the upper bound of the initial target bit rate the device would like to receive. For channel-adaptive mode, the target bit rate may vary with time; for channel-independent mode, the target bit rate will remain at that level unless instructed otherwise. An acceptable value for ibitrate is in the range of 20000 to 32000 (bits per second). * maxbitrate: The parameter indicates the maximum bit rate the endpoint expects to receive. The recipient of this parameter SHOULD NOT transmit at a higher bit rate. Encoding considerations: This media format is framed and binary. Security considerations: See Section 6 Interoperability considerations: None Published specification: RFC XXXX Applications which use this media type: This media type is suitable for use in numerous applications needing to transport encoded voice or other audio. Some examples include Voice over IP, Streaming Media, Voice Messaging, and Conferencing. Additional information: None Intended usage: COMMON Other Information/General Comment: iSAC is a proprietary speech and audio codec owned by Google. The codec operates on 30 or 60 ms speech frames at a sampling rate clock of 16 kHz or 32 kHz. Person to contact for further information: Tina le Grand [tlegrand@google.com] Restrictions on usage: This media type depends on RTP framing, and hence is only defined for transfer via RTP [2]. Transport within other framing protocols is not defined at this time. Change controller: IETF Audio/Video Transport working group delegated from the IESG. Note to the RFC Editor / IANA: Please replace "RFC XXXX" above with the number of this RFC when published, and remove this note.