Sound source localization method, device and equipment
A sound source and phase difference technology, applied in frequency/direction characteristic devices, positioning, measuring devices, etc., can solve the problem of low accuracy of sound source positioning and achieve the effect of improving accuracy
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no. 1 example
[0048] The embodiment of the present application provides a sound source localization method, which can be used in sound pickup equipment, audio and video conference terminals, etc., and the equipment includes a directional microphone array instead of an omnidirectional microphone array.
[0049] Please see figure 1 , which is a schematic flowchart of an embodiment of the sound source localization method of the present application. In this embodiment, the method may include the following steps:
[0050] Step S101: collecting multi-channel voice signals through a directional microphone array.
[0051] The directional microphones include, but are not limited to: cardioid, supercardioid, gun, and bidirectional.
[0052] The microphone array may be a circular array or a linear array, or an array of other geometric shapes, such as a square array, a triangular array, etc., or an array of irregular geometric shapes.
[0053] Step S103: According to the array shape information and ...
no. 2 example
[0077] In the foregoing embodiments, a method for localizing a sound source is provided, and correspondingly, the present application also provides a device for localizing a sound source. The device corresponds to the embodiment of the above-mentioned method. Since the device embodiment is basically similar to the method embodiment, the description is relatively simple, and for relevant parts, refer to the part of the description of the method embodiment. The device embodiments described below are illustrative only.
[0078] The present application additionally provides a sound source localization device, including:
[0079] The sound collection unit is used to collect multi-channel voice signals through the directional microphone array;
[0080] a steering vector determining unit, configured to determine a steering vector including phase information and amplitude information according to the array shape information and the microphone pointing direction information;
[0081...
no. 3 example
[0097] Corresponding to the above sound source localization method, the present application also provides a conference system. The parts in this embodiment that are the same as those in the first embodiment will not be described again, please refer to the corresponding parts in the first embodiment. A conference system provided by the present application includes: a sound source localization device and a speaker tracking device.
[0098] The audio and video conferencing system is two or more individuals or groups in different places, through transmission lines and conference terminals and other equipment, the audio, video and document data are exchanged to achieve real-time and interactive communication, so as to realize simultaneous conferences. system equipment.
[0099] Wherein, the sound source localization device corresponds to the first embodiment, so details are not repeated here, please refer to the corresponding part in the first embodiment. The speaker tracking dev...
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