Matti Aarnio wrote:
> What does such tape contain ?
> - DTMF tones buried in various degrees of distortions,
> which should be decodable ?
> - DTMF tones buried in varying noises which should not be
> decodable ?
> - Other multi-tone signals which should not decode ?
All that, plus voice (to detect falsing).
It's about 30 minutes long.
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This archive was generated by hypermail 2b29 : Wed Jan 15 2003 - 22:00:32 EST