Information processing device and information processing method
AssigneeSony Corporation
InventorsNaoya Takahashi, Yuhki Mitsufuji
Life of this patent
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Abstract
An information processing device including an acquisition unit that acquires a sound collection result of a sound from each of one or more sound sources obtained by a sound collection portion of which positional information indicating at least one of a position and a direction is changed and an estimation unit that estimates a direction of each of the one or more sound sources on a basis of a change in a frequency of a sound collected by the sound collection portion in association with a change in the positional information of the sound collection portion.
Claims16
An information processing device, comprising:
- an acquisition unit configured to acquire a sound collection result of a sound from each of at least one sound source, wherein
- the sound is collected by a sound collection portion, and
- positional information of the sound collection portion indicates at least one of a position associated with the sound collection portion or a direction associated with the sound collection portion;
- and
- an estimation unit configured to estimate a direction of each of the at least one sound source based on a change in the positional information of the sound collection portion and a ratio of partial differentiation in a time direction of a spectrum of the sound to partial differentiation in a frequency direction of the spectrum of the sound.
An information processing method, comprising:
- acquiring a sound collection result of a sound from each of at least one sound source, wherein
- the sound is collected by a sound collection portion, and
- positional information of the sound collection portion indicates at least one of a position associated with the sound collection portion or a direction associated with the sound collection portion;
- and
- estimating, by a processor, a direction of each of the at least one sound source based on a change in the positional information of the sound collection portion and a ratio of partial differentiation in a time direction of a spectrum of the sound to partial differentiation in a frequency direction of the spectrum of the sound.
A non-transitory computer-readable medium having stored thereon computer-executable instructions which when executed by a processor of a device, cause the processor to execute operations, the operations comprising:
- acquiring a sound collection result of a sound from each of at least one sound source, wherein
- the sound is collected by a sound collection portion, and
- positional information of the sound collection portion indicates at least one of a position associated with the sound collection portion or a direction associated with the sound collection portion;
- and
- estimating a direction of each of the at least one sound source based on a change in the positional information of the sound collection portion and a ratio of partial differentiation in a time direction of a spectrum of the sound to partial differentiation in a frequency direction of the spectrum of the sound.
Dependencies are inferred from the claim text.