Signal processing apparatus and method
AssigneeCanon Kabushiki Kaisha
InventorNoriaki TAWADA
Life of this patent
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Abstract
There is provided a signal processing apparatus advantageous in terms of sound source separation performance. The signal processing apparatus includes a dividing unit configured to divide audio signal acquired by a plurality of audio acquisition units into components of a plurality of different frequency bands, and a processing unit configured to form, based on the audio signal, a plurality of directional beams having different directivities in accordance with a target direction and a target width. Each of the plurality of directional beams has directivities in different directions for the respective components of the frequency bands divided by the dividing unit.
Claims11
A signal processing apparatus comprising:
- a dividing unit configured to divide audio signal acquired by a plurality of audio acquisition units into components of a plurality of different frequency bands;
- and
- a processing unit configured to form, based on the audio signal, a plurality of directional beams having different directivities in accordance with a target direction and a target width,
- wherein each of the plurality of directional beams has directivities in different directions for the respective components of the frequency bands divided by the dividing unit.
A signal processing method comprising:
- dividing audio signal acquired by a plurality of audio acquisition units into components of a plurality of different frequency bands;
- and
- forming, based on the audio signal, a plurality of directional beams having different directivities in accordance with a target direction and a target width,
- wherein each of the plurality of directional beams has directivities in different directions for the respective components of the divided frequency bands.
A computer-readable storage medium having a program stored thereon for performing a signal processing method, the method comprising:
- dividing audio signal acquired by a plurality of audio acquisition units into components of a plurality of different frequency bands;
- and
- forming, based on the audio signal, a plurality of directional beams having different directivities in accordance with a target direction and a target width,
- wherein each of the plurality of directional beams has directivities in different directions for the respective components of the divided frequency bands.
Dependencies are inferred from the claim text.