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detecting DTMF in InputStream

 
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Hi,

My application is receiving an InputStream containing audio in PCM 8bits mono 8Khz which, utltimately, comes from a telephone call.

Could somedy tell me how to detect DTMF tones inside this audio stream?

I had a look at JTAPI, but it looks like it's a spec made of interfaces only and that implementations are vendor-dependant, so it does not seem to help as I am already receiving the stream from a telephone independant lib.


Thanks a lot in advance
 
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