Methods for Speech SNR estimation: Evaluation Tool and Analysis of VAD Dependency
نویسندگان
چکیده
This paper describes the algorithms for speech SNR estimation and the tool snr where these methods are implemented. The definitions of SNR optimized for speech application are summarized and implemented in above mentioned tool. The described tool can estimate the SNR of noisy speech signal with or without reference signal. The tool also can be used to create a speech and noise mixture with required SNR. Analysis of the influence on voice activity detector for the described criteria estimation was provided with artificially mixed data. Finally, the experiments with the measurements on real noisy speech were performed and presented. The described tool is implemented in the C and it can be used for different platforms. It is available for free on the Internet.
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تاریخ انتشار 2005