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Reply To: Answer supervision

Mohammad Saman

Dear Saeid

Try Pleiades P32MXI as TAC and Junior have mentioned above. They work quite well using a DSP voice/tone distinction algorithm. They are a bit expensive though. You might want to try to have design an add on piece for you. Essentially you need a filter that will differentiate between Voice and other signals on your 4Khz band. I am just trying to point out cheaper solutions.