Voice sensing method
A voice detection and voice technology, applied in voice analysis, voice recognition, instruments, etc., can solve the problems of reducing the standby time of talk time, power consumption of the hands-free voice communication system, and reducing the competitiveness of the hands-free voice communication system. , to achieve the effect of increasing the detection accuracy and improving the accuracy rate
Active Publication Date: 2011-09-28
MICROCHIP TECH INC
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Problems solved by technology
If the hands-free voice communication system continuously transmits packets during the entire call, it will cause unnecessary power consumption of the hands-free voice communication system
Because the hands-free voice communication system uses battery power to provide power, if unnecessary power consumption continues to be generated, the talk time or standby time of the hands-free voice communication system will be greatly reduced, thereby reducing the hands-free voice communication system. Competitiveness of the persistent voice communication system in the market
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[0026] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of the present invention, but it is not intended to limit the scope of protection of the appended claims of the present invention.
[0027] Please refer to Figure 1A , Figure 1B and Figure 1C , is a schematic diagram of the appearance of the hands-free voice communication system.
[0028] Figure 1A , Figure 1B It is a schematic diagram of the appearance of the first embodiment. The hands-free voice communication system 10 includes a first sound receiving device 20 and a second sound receiving device 30 . Each of the first sound collecting device 20 and the second sound collecting device 30 can be a microphone. The hands-free voice communication system 10 has a first surface 11 and a second surface 12 . When the user uses the hands-free voice communication ...
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The invention discloses a voice sensing method comprising the following steps of: sampling a first signal by a first radio reception device, and sampling a second signal by a second radio reception device, wherein the first radio reception device is closer to a voice signal source compared with the second radio reception device; calculating the first energy corresponding to the first signal in an interval, calculating the second energy corresponding to the second signal in the interval, and calculating a first ratio according to the first energy and the second energy; converting the first ratio to be a second ratio; setting a critical value; and judging whether the voice signal source is sensed or not according to the sizes of the second ratio and the critical value. Through the voice sensing method disclosed by the invention, a voice signal can be exactly sensed when a user transmits the voice signal.
Description
technical field [0001] The present invention relates to a voice detection method, in particular to a voice detection method using a dual radio receiver. Background technique [0002] In recent years, hands-free voice communication systems have been widely used. Generally speaking, the hands-free voice communication system can be connected with the mobile communication device through the Bluetooth communication module. After digitization and modulation, the hands-free voice communication system can convert voice signals into packets one by one, and then use the Bluetooth communication module to transmit these packets to the mobile communication module. [0003] However, in a real environment, the hands-free voice communication system will be interfered by environmental noise, and the clarity of the original voice signal will be reduced. For example, when the user uses the hands-free voice communication system next to a road with frequent traffic or a crowded subway station,...
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IPC IPC(8): G10L11/02G10L15/04G10L21/02G10L25/60
Inventor 林颖聪丁永祯金判燮
Owner MICROCHIP TECH INC