Speech signal recognition method and device
AssigneeAlibaba Group Holding Limited
InventorYong Liu
Life of this patent
Estimating the term…
Abstract
Systems and methods are directed to improving speech signal recognition. A method includes obtaining a spatial audio signal; separating a continuous speech signal and a corresponding directivity flag signal for a sound source direction from the spatial audio signal; and combining the continuous speech signal with the corresponding directivity flag signal for the sound source direction to generate a speech activation detection signal for the sound source direction. Because the speech activation detection signal of the sound source direction is obtained by combining the continuous speech signal with the directivity flag signal of the sound source direction, the speech activation detection signal has directivity, reducing the interference from continuous speech signal in other sound source directions.
Claims20
A method, comprising:
- obtaining a spatial audio signal;
- separating a continuous speech signal and a corresponding directivity flag signal for a sound source direction from the spatial audio signal;
- and
- combining the continuous speech signal with the corresponding directivity flag signal for the sound source direction to generate a speech activation detection signal for the sound source direction.
A computer-readable storage medium storing computer-readable instructions executable by one or more processors, that when executed by the one or more processors, cause the one or more processors to perform operations comprising:
- obtaining a spatial audio signal;
- separating a continuous speech signal and a corresponding directivity flag signal for a sound source direction from the spatial audio signal;
- and
- combining the continuous speech signal with the corresponding directivity flag signal for the sound source direction to generate a speech activation detection signal for the sound source direction.
An apparatus, comprising,
- One or more processors,
- memory, coupled to the one or more processors, the memory storing thereon computer-executable modules, executable by the one or more processors the executable modules including:
- a spatial audio signal acquisition module configured to obtain a spatial audio signal;
- a first signal generation module configured to separate a continuous speech signal and a corresponding directivity flag signal for a sound source direction from the spatial audio signal;
- and
- a second signal generation module configured to combine the continuous speech signal with the corresponding directivity flag signal for the sound source direction to generate a speech activation detection signal for the sound source direction.
Dependencies are inferred from the claim text.