Multi-sound source judgment method and device for intelligent robot based on artificial intelligence

Abstract

The invention provides an artificial-intelligence-based intelligent robot multi-sound-source judgment method and device. The method comprises the steps that frame dividing is performed on sound source signals received by microphone arrays; time difference of the current frame of sound source signals to each microphone pair is calculated, and normalization processing is performed on the calculated time difference; a corresponding correlation value between the normalized time difference and the pre-stored normalized time difference is calculated, and the number and position information of sound sources in the current frame of sound source signals are confirmed according to the correlation value and the preset threshold; and each sound source is tracked according to the position information of the sound sources, and shunting is performed on the sound source signals according to the position information of the tracked multiple sound sources and the microphone arrays so that voice signals of each sound source in the sound source signals can be acquired. According to the method, the position of multiple sound sources can be accurately positioned, the sound sources can be accurately tracked, and the voice signals of each sound source in the sound source signals can be accurately obtained through shunting.

Description

technical field [0001] The invention relates to the technical field of artificial intelligence, in particular to a method and device for judging multiple sound sources of an intelligent robot based on artificial intelligence. Background technique [0002] Artificial intelligence (AI for short) refers to the intelligence shown by artificially manufactured systems. Artificial intelligence is the ability to study how to manufacture artificial intelligent machines or intelligent systems to simulate human intelligence activities. The core of artificial intelligence is to make machines have human intelligence. [0003] With the development of artificial intelligence technology and computer technology software and hardware, people's requirements for intelligent robots (such as household intelligent robots) continue to increase. Find out the source of the sound, and simulate human behavior to interact with the user, or change your behavior according to the sound you hear. That is ...

AI Technical Summary

Problems solved by technology

However, since the microphone cannot perform all the functions of the human ear, only the binaural microphone array can only locate the front, rear, left, right, or up and down, and it cannot accurately locate the directions in multiple dimensions, which will lead to the movement of the intelligent robot. Single form, two-channel microphone array is not suitable for use in domestic robots

Although the accuracy of positioning can be improved by increasing the number of microphones, due to the size limitation of the intelligent robot, the arrangement of the array must be very precise and complement its movement. Too many microphones occupy an unreasonable internal space, which will affect Design and production of other functions of intelligent robots

In addition, in the existing products, the tracking of dynamic sound sources is mostly in a single sound source and the positioning function is not organically integrated, so it is impossible to accurately locate and track multiple sound sources in real time

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