Speech signal time delay estimation method and system used for echo cancellation
A technology for time delay estimation and speech signal, applied in the field of speech signal time delay estimation method and system, can solve the problems of poor echo cancellation effect and poor effect, and achieve the effect of improving quality, simple calculation and improving effect
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[0053] In order to make the objectives, technical solutions and effects of the present invention clearer and clearer, the present invention will be described in further detail below. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.
[0054] The present invention also provides a flowchart of a preferred embodiment of a voice signal time delay estimation method for echo cancellation, such as figure 2 As shown, the methods include:
[0055] Step S100: Obtain the far-end signal and the near-end signal of the voice signal received by the microphone during the call, and respectively perform framing, FFT fast Fourier transform, and windowing operations on the far-end signal and the near-end signal to generate the corresponding far-end signal. End frequency domain signal and near end frequency domain signal.
[0056] In specific implementation, when a user talks through a microphone,...
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