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US 10,708,705 B2Granted
Audio processing method and audio processing apparatus
AssigneeYamaha Corporation
InventorsTsukasa Suenaga, Futoshi Shirakihara
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Abstract
An audio processing apparatus has a setting processor that sets a size of a virtual sound source; and a signal processor that generates an audio signal by imparting to an audio signal a plurality of head-related transfer characteristics. The plurality of head-related transfer characteristics corresponds to respective points within a range that accords with the size set by the setting processor from among a plurality of points, with each point having a different position relative to a listening point.
Claims12
An audio processing method comprising:
- providing a first audio signal;
- setting a size of a virtual sound source that is larger than a point to enable a listener to perceive a spatial spread of a sound image of sound produced from the first audio signal;
- setting a range according to the set size, from among a plurality of points each in a different position relative to a listening point, individually for each of a right ear and a left ear;
- generating a second audio signal by imparting, to the first audio signal, a plurality of head-related transfer characteristics corresponding to multiple points within the set range for:
- a right channel by imparting to the first audio signal a plurality of right head-related transfer characteristics for the right ear corresponding to respective points within the range set with regard to the right ear;
- and
- a left channel by imparting to the first audio signal a plurality of left head-related transfer characteristics for the left ear corresponding to respective points within the range set with regard to the left ear.
4 more elements
An audio processing apparatus comprising:
- at least one processor configured to execute stored instructions to:
- obtain a first audio signal;
- set a size of a virtual sound source that is larger than a point to enable a listener to perceive a spatial spread of a sound image of sound produced from the first audio signal;
- and
- set a range according to the set size, from among a plurality of points each in a different position relative to a listening point, individually for each of a right ear and a left ear;
- generate a second audio signal by imparting, to the first audio signal, a plurality of head-related transfer characteristics corresponding to multiple points within the set range for:
- a right channel by imparting to the first audio signal a plurality of head-related transfer characteristics for the right ear corresponding to respective points within the range set with regard to the right ear;
- and
- a left channel by imparting to the first audio signal a plurality of head-related transfer characteristics for the left ear corresponding to respective points within the range set with regard to the left ear.
6 more elements
Dependencies are inferred from the claim text.