A noise-robust echo canceller on V830 multimedia RISC processor integrated into a car navigation system
نویسندگان
چکیده
This paper presents a noise-robust, fast-convergence echo canceller and its implementation on a multimedia RISC (Reduced Instruction Set Computer). Faster convergence is achieved by introducing an improved noise power estimator for step-size control. This echo canceller has been implemented on V830 multimedia embedded RISC and has been integrated into a car navigation system. V830 provides performance comparable to a digital signal processor (DSP) and extended flexibility while power consumption is lower than that of a DSP. Computer simulations and measurements using a V830 board show fast convergence and robustness against disturbance such as a noise and a double-talk without double-talk detection.
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