US 2025/0080892 A1 · AUDIO SIGNAL PROCESSING METHOD, DEVICE, SYSTEM, AND STORAGE MEDIUM

Abstract

Audio signal processing methods, systems, terminal devices, conference devices, teaching devices, intelligent vehicle-mounted devices, server device, and computer-readable storage media are provided. The method comprises: obtaining current audio signals acquired by a microphone array, the microphone array comprising at least two microphones; generating, according to phase difference information of the current audio signals acquired by the at least two microphones, current sound source spatial distribution information corresponding to the current audio signals; and according to the current sound source spatial distribution information, in combination with the conversion relationship between single speech and overlapping speech learned on the basis of historical audio signals, identifying whether the current audio signals are overlapping speech. Compared with single-channel audio, the audio signals acquired by the microphone array are used, and the sound source spatial distribution information is included, thus, the techniques of the present disclosure accurately identify whether the current audio signals are overlapping speech, thereby satisfying the detection requirement for a product level.

Claims20

Dependent claims

A method comprising:

acquiring a current audio signal captured by a microphone array, the microphone array including at least two microphones;
generating spatial distribution information of a current sound source corresponding to the current audio signal based on phase difference information of the current audio signal captured by the at least two microphones;
and
identifying that the current audio signal is an overlapping speech based on the spatial distribution information of the current sound source and in combination with a conversion relationship between a single speech and the overlapping speech learned from historical audio signals.

1 more element

A device comprising:

a microphone array;
one or more processors;
and
one or more memories storing thereon computer-readable instructions that, when executed by the one or more processors, cause the one or more processors to perform acts comprising:
acquiring a current audio signal captured by the microphone array, the microphone array including at least two microphones;
generating spatial distribution information of a current sound source corresponding to the current audio signal based on phase difference information of the current audio signal captured by the at least two microphones;
and
identifying that the current audio signal is an overlapping speech based on the spatial distribution information of the current sound source and in combination with a conversion relationship between a single speech and the overlapping speech learned from historical audio signals.

5 more elements

One or more memories storing thereon computer-readable instructions that, when executed by one or more processors, cause the one or more processors to perform acts comprising:

acquiring a current audio signal captured by a microphone array, the microphone array including at least two microphones;
generating spatial distribution information of a current sound source corresponding to the current audio signal based on phase difference information of the current audio signal captured by the at least two microphones;
and
identifying whether the current audio signal is an overlapping speech based on the spatial distribution information of the current sound source and in combination with a conversion relationship between a single speech and the overlapping speech learned from historical audio signals;
in response to determining that the current audio signal is identified as the overlapping speech, determining at least two effective sound source orientations based on the spatial distribution information of the current sound source;
or
in response to determining that the current audio signal is identified as a single speech, using an orientation with a maximum probability being a position of the current sound source as an effective sound source orientation.

4 more elements

Dependencies are inferred from the claim text.

Audio signal processing method, device, system, and storage medium

Life of this patent

Audio signal processing method, device, system, and storage medium

Life of this patent

Abstract

Claims20