Method for controlling echo of hand-free telephone
A hands-free phone and echo technology, applied in the field of communication, can solve the problems of increasing sampling and quantization errors, waste of hardware facilities, unsuitability, etc., to achieve the effect of eliminating echo, improving auditory experience, and ensuring the quality of communication services
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[0013] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following will further describe the embodiments of the present invention in detail with reference to the accompanying drawings:
[0014] This embodiment provides a method for performing echo control on a hands-free phone.
[0015] See figure 1 , The method mainly includes the following steps:
[0016] Step 101: The voice detector samples the far-end voice and the near-end voice to determine the current network call status.
[0017] The voice detector first samples the input far-end voice and near-end voice, and judges the current network call status according to the short-term energy estimates of the voice samples on the receiving channel and the sending channel.
[0018] If the short-term energy estimate of the voice sample point on the sending channel at the current moment is greater than a certain fixed multiple of the maximum value of the short-term energy estimate...
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