Audio recognition method, method, apparatus for positioning target audio, and device

An audio interaction device, comprising:

• a processor;
• and
• a memory, the memory storing computer-readable instructions, the computer-readable instructions, when executed by the processor, causing the audio interaction device to perform a plurality of operations including:
• obtaining audio signals collected in a plurality of directions in a space, the audio signals comprising a target-audio direct signal;
• performing echo cancellation on the audio signals;
• obtaining weights of a plurality of time-frequency points in the echo-canceled audio signals, a weight of each time-frequency point indicating a relative proportion of the target-audio direct signal in the echo-canceled audio signals at the time-frequency point;
• weighting time-frequency components of the audio signals at the plurality of time-frequency points separately for each of the plurality of directions by using the weights of the plurality of time-frequency points, to obtain a weighted audio signal energy distribution of the audio signals in the plurality of directions;
• obtaining a sound source azimuth corresponding to the target-audio direct signal in the audio signals by using the weighted audio signal energy distribution of the audio signals in the plurality of directions;
• and
• performing audio recognition to the audio signals based on the sound source azimuth corresponding to the target-audio direct signal.

A non-transitory computer readable medium, storing computer-readable instructions, the computer readable instructions being executable by one or more processors of an audio interaction device to perform a plurality of operations including:

• obtaining audio signals collected in a plurality of directions in a space, the audio signals comprising a target-audio direct signal;
• performing echo cancellation on the audio signals;
• obtaining weights of a plurality of time-frequency points in the echo-canceled audio signals, a weight of each time-frequency point indicating a relative proportion of the target-audio direct signal in the echo-canceled audio signals at the time-frequency point;
• weighting time-frequency components of the audio signals at the plurality of time-frequency points separately for each of the plurality of directions by using the weights of the plurality of time-frequency points, to obtain a weighted audio signal energy distribution of the audio signals in the plurality of directions;
• obtaining a sound source azimuth corresponding to the target-audio direct signal in the audio signals by using the weighted audio signal energy distribution of the audio signals in the plurality of directions;
• and
• performing audio recognition to the audio signals based on the sound source azimuth corresponding to the target-audio direct signal.