Integrated near-end acoustic echo and noise reduction systems
نویسندگان
چکیده
− This paper presents the development of integrated near-end acoustic echo and noise reduction algorithm. The modified frequency-sampling filter (FSF) provides an effective filterbank for splitting signal into equally spaced frequency channels. The center clipper and attenuator are employed at each frequency bin for attenuating near-end acoustic echo and noise. The adaptive clipping threshold and dynamic attenuator value are updated based on the optimized voice-activity detector (VAD). Computer simulations using speech and measured room impulse response show that the near-end acoustic echo and noise are suppressed successfully.
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