Method for fast identifying speeking person based on comparing ordinal number of archor model space projection
A technology of speaker confirmation and spatial projection, applied in speech analysis, instruments, etc., can solve problems such as lack of rationality, and achieve the effect of simplifying the training process, overcoming incompleteness, and widening security and adaptability
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[0013] The present invention will be further described below in conjunction with embodiment. The method of the present invention is divided into six steps.
[0014] Step 1: Audio Preprocessing
[0015] Audio preprocessing is divided into three parts: sampling quantization, zero drift removal, pre-emphasis and windowing.
[0016] 1. Sampling and quantization
[0017] A), filter the audio signal with a sharp cut-off filter to make its Nyquist frequency F N 4KHZ;
[0018] B), set the audio sampling rate F=2F N ;
[0019] C), for audio signal s a (t) Sampling by period to obtain the amplitude sequence of the digital audio signal s ( n ) = s a ( n F ) ,
[0020] D), s(n) is quantized and coded by pulse code modulation (PCM), and the quantized representation s'(n) of the amplitud...
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