Real-time speech endpoint detection method and device
An endpoint detection and real-time voice technology, applied in voice analysis, voice recognition, instruments, etc., can solve problems such as difficult signal-to-noise ratio, large error, and poor calculation
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[0090] The present embodiment provides a real-time voice endpoint detection method, which includes the following steps:
[0091] 1. The signal is divided into frames and emphasized; the frame overlap can be set, and the emphasis is processed first, and the emphasis method belongs to the existing technology;
[0092] 2. De-pulse processing; eliminate some pulse noise;
[0093] 3. Remove the DC component; that is, the amplitude of all signal points is subtracted from the mean value of the amplitude of all points of this frame signal;
[0094] 4. Calculate the short-term energy and zero-crossing rate of each frame signal; the calculation method belongs to the prior art;
[0095] 5. Adding window processing; adding Hanning window or Hamming window belongs to the prior art;
[0096] 6. Spectrum subtraction processing: Spectrum subtraction and denoising belong to the prior art, but in this embodiment, it is not necessary to restore the signal of spectrum subtraction in the frequen...
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