Microphone-array speech-beam forming method as well as speech-signal processing device and system
A voice signal processing and microphone array technology, which is applied in voice analysis, transducer circuits, sound-generating devices, etc., can solve problems such as strong directional interference, difficult indoor reverberation, and multi-path reflection, so as to reduce noise and other problems. Interference, improve positioning accuracy and directivity, and enhance the effect of long-distance sound pickup ability
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[0013] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0014] Please refer to figure 1 , the microphone array in the embodiment of the present invention is composed of microphones 0~4, and the speech signals obtained by each microphone are sequentially processed through digital signal conversion, frequency domain signal acquisition and delay acquisition, and corresponding delay compensation 0~4 is performed respectively, and then passed through Weighted superposition, and finally the speech beam with speech signal enhancement is obtained. Specifically, the microphone array speech beamforming method of the embodiment of the present invention includes:
[0015] Digital signal conversion step: converting the microphone signal obtained by the microphone array composed of at least two microphones into a digital signal;
[0016] Frequency-domain signal acquisition step: acquiring the frequency-domain signal of...
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