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VOICE DENOISING METHOD AND APPARATUS, COMPUTING DEVICE AND COMPUTER READABLE STORAGE MEDIUM
VOICE DENOISING METHOD AND APPARATUS, COMPUTING DEVICE AND COMPUTER READABLE STORAGE MEDIUM
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机译:语音去噪方法和设备,计算设备和计算机可读存储介质
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摘要
This application discloses a voice denoising method and apparatus, computing device and computer readable storage medium. The method is performed by the computing device, and includes: obtaining a noisy speech signal, the noisy speech signal including a pure speech signal and a noise signal; estimating a posteriori signal-to-noise ratio and a priori signal-to-noise ratio of the noisy speech signal; determining a speech/noise likelihood ratio in a Bark domain based on the estimated posteriori signal-to-noise ratio and the estimated priori signal-to-noise ratio; estimating a priori speech existence probability based on the determined speech/noise likelihood ratio; determining a gain based on the estimated posteriori signal-to-noise ratio, the estimated priori signal-to-noise ratio, and the estimated priori speech existence probability, the gain being a frequency domain transfer function used for converting the noisy speech signal into an estimation of the pure speech signal; and exporting the estimation of the pure speech signal from the noisy speech signal based on the gain.
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