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Discussion Groups | Echo Cancellation | Test signals for acoustic echo canceller
Test signals for acoustic echo canceller - Satyanarayana PK - Jan 7 13:20:00 2003
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Hello all, We are working on acoustic echo canceller(AEC). We have finished the development work and tested it for simulated signals. Now we want to test the same for real-time environment(sort of field test). We are stuck at recording the echo signal in a small room. Can anybody suggest how to record and test the AEC off line using these recorded signals. Or, we would like know whether any special equipment available for this purpose. Somebody can suggest some URLs where aec test signals are available. (We have tried recording using a PC in a small room, but lot's of noise is getting recorded and moreover the mic and speakers are creating nonlinearities in the recorded signal resulting in divergence of the adaptive filter) thanks and regards satyanarayana |
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