Re: [Model-t] draft-thomson-tmi

Carsten Bormann <cabo@tzi.org> Wed, 22 July 2020 13:15 UTC

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From: Carsten Bormann <cabo@tzi.org>
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Date: Wed, 22 Jul 2020 15:15:52 +0200
Cc: Watson Ladd <watsonbladd@gmail.com>, Eric Rescorla <ekr@rtfm.com>, Mirja Kuehlewind <ietf@kuehlewind.net>, Martin Thomson <mt@lowentropy.net>, model-t@iab.org
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To: Christian Huitema <huitema@huitema.net>
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Subject: Re: [Model-t] draft-thomson-tmi
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On 2020-07-22, at 03:13, Christian Huitema <huitema@huitema.net> wrote:
> 
> Now, voice codec just send at a constant bit rate, independent of the variations in speech. 

Actually, there is a body of literature about extracting information, such as the language being used or even the content of the speech itself, from encrypted variable-bitrate codecs such as those used in CDMA.

E.g., https://dl.acm.org/doi/10.1145/1880022.1880029

Grüße, Carsten