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Re: [codec] WG Review: Internet Wideband Audio Codec (codec)

Brian West <brian@freeswitch.org> Tue, 05 January 2010 18:39 UTC

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From: Brian West <brian@freeswitch.org>
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Date: Tue, 05 Jan 2010 12:39:17 -0600
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To: Gregory Maxwell <gmaxwell@juniper.net>
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Subject: Re: [codec] WG Review: Internet Wideband Audio Codec (codec)
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Wouldn't this go over the MTU on the RTP packets and cause some issues on the public internet?

/b

On Jan 5, 2010, at 12:13 PM, Gregory Maxwell wrote:

> "full quality" mono audio takes around 44.1/16bit linear, you can argue that a little higher or lower is required for full transparency in some conditions or another, but 44.1k/16 is what CDDA provides. It's a good number and commonly available on hardware today.
> 
> As uncompressed thats 705kbit/sec before you get into packetization overhead.  Thats per-communication channel, each way. A good perceptual lossy codec can get you down to under 100kbit/sec while preserving transparency for most material, with most listeners, most of the time.

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