Beidou short message voice transmission method and device
The invention provides a Beidou short message voice transmission method and device, and relates to the technical field of data transmission, and the method comprises the steps: obtaining a to-be-transmitted voice signal, and sequentially carrying out the sampling, quantification and framing of the t...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides a Beidou short message voice transmission method and device, and relates to the technical field of data transmission, and the method comprises the steps: obtaining a to-be-transmitted voice signal, and sequentially carrying out the sampling, quantification and framing of the to-be-transmitted voice signal, and obtaining a target voice signal; performing LPC filtering on the target voice signal, and determining attribute data of the filtered target voice signal and the type of each voice frame; constructing a super frame based on the correlation of the voice frames and the filtered target voice signal, and coding the super frame based on the type of each voice frame to obtain a super frame code; performing vector quantization on the super frame code and the attribute data of the voice frame contained in the super frame code to obtain a voice compressed code, and compressing the voice compressed code to obtain a compressed signal; and the compressed signal is sent to the receiving equipme |
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