Method and device for obtaining sound source position, and device terminal
A technology of sound source location and equipment terminal, applied in measurement devices, components of color TVs, components of TV systems, etc., can solve the problems of time difference, inaccurate positioning, easy to be affected by environmental noise, etc., and achieve rapid response. , The method is simple and reliable
Inactive Publication Date: 2019-04-19
江门市声动电子科技有限公司
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Problems solved by technology
However, this sound source localization method using time difference has the disadvantages of being easily affected by environmental noise and not accurate enough for localization.
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Embodiment Construction
[0029] See figure 1 , Embodiment 1 of the present invention provides the method for obtaining sound source position, comprises the following steps:
[0030] S1, collecting audio signals through multiple microphones;
[0031] S2, according to the audio signal collected by each microphone, filter out the microphone containing the intermediate frequency signal in the audio signal collected;
[0032] S3, compare the intermediate frequency signal that the microphone that is screened gathers, catch and gather a microphone that the amplitude of intermediate frequency signal is maximum, and establish as target microphone;
[0033] S4. According to the position of the target microphone, the position of the sound source is locked.
[0034] Exemplary, in described step S2, the microphone that contains intermediate frequency signal in the audio signal of described filtering out collection can be realized by the following method:
[0035] The audio signals collected by each microphone a...
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The invention discloses a method and device for obtaining the sound source position, and a device terminal. The method comprises steps that according to audio signals collected by each microphone, themicrophones with intermediate frequency signals in the collected audio signals are screened; the intermediate frequency signals collected by the screened microphones are compared, the microphone withthe largest amplitude of the collected intermediate frequency signals is captured, and the target microphone is determined; the sound source position is locked based on where the target microphone islocated. Based on that the vocal range of the human is the intermediate frequency signals, the microphone collecting the intermediate frequency signal representing the human voice is firstly screenedout, the environmental noise not in the human voice spectrum range is ignored, and the fuzzy screening purpose is achieved; based on that the IF signal collected by the microphone closest to a speaker has the largest amplitude, the microphone with the largest amplitude of the IF signal is captured, the captured microphone is determined to be the target microphone, and accurate screening is achieved. The method is advantaged in that the method is simple and reliable, and response is fast.
Description
technical field [0001] The present invention relates to the field of audio detection, in particular to a method, device and equipment terminal for acquiring the position of a sound source. Background technique [0002] Video conferencing system is a multimedia communication technology that allows people in different places to realize "real-time, visual and interactive" through a certain transmission medium. It can distribute various information such as static and dynamic images, voice, text, and pictures of characters to each user's terminal equipment through various existing electrical communication transmission media, so that geographically dispersed users can gather together. At the same place, exchange information through graphics, sound and other ways to increase the understanding of the content of both parties, making people feel like participating in a meeting in the same venue. [0003] A general video conferencing system includes a camera for collecting the scene o...
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IPC IPC(8): G01S11/14H04N5/232
CPCG01S11/14H04N23/60
Inventor 黄炳球钟劲坚朱杰峰
Owner 江门市声动电子科技有限公司