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| View Original: | Telephone Echo Canceller.png (5639x3001) | |||
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| Keywords: Telephone Echo Canceller.png en An adaptive echo canceler for a telephone circuit The function of H the hybrid transformer is to route incoming speech from the far end x<sub>k</sub> to the local telephone and route speech from the telephone to the far end However the hybrid is never perfect so its output d<sub>k</sub> contains both the desired speech from the local telephone plus filtered speech from the far end The adaptive filter f<sub>k</sub> attempts to minimize the error signal ε<sub>k</sub> by filtering the incoming far end speech into a replica y<sub>k</sub> of the far end speech that leaks through the hybrid Once the adaption is complete the error signal consists entirely of speech from the local telephone 2014-06-28 22 01 37 own Constant314 cc-zero Uploaded with UploadWizard Telephony Adaptive filter Echo Canceller | ||||
