Audio signal processing apparatus
AssigneeYamaha Corporation
InventorsYuta Yuyama, Ryotaro Aoki, Masaya Kano
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Abstract
An audio signal processing apparatus includes an input unit configured to receive input of audio signals of a plurality of channels, an obtaining unit configured to obtain position information of a sound source, a sound field effect sound generating unit configured to generate a sound field effect sound by individually imparting a sound field effect to an audio signal of each of the channels, and a control unit configured to control the sound field effect to be imparted in the sound field effect sound generating unit, based on the position information.
Claims16
An audio signal processing apparatus comprising:
- an input unit configured to receive input of audio signals of a plurality of channels;
- an obtaining unit configured to obtain position information of a sound source;
- a sound image localization processing unit configured to perform sound image localization of the sound source based on the position information;
- a sound field effect sound generating unit configured to generate a sound field effect sound by individually imparting a sound field effect to an audio signal of each of the channels;
- a control unit configured to:
- control, based on the position information, the sound field effect to be imparted in the sound field effect sound generating unit, and
- control, according to a change command to change a listening environment, a sound image position of the sound image localization processing unit;
- a converter configured to convert the generated sound field effect sound associated with each of the channels;
- and
- an amplifier configured to amplify the converted sound field effect sound of each of the channels and output to respective speaker units.
A method of processing an audio signal, the method comprising:
- an input step of receiving input of audio signals of a plurality of channels;
- an obtaining step of obtaining position information of a sound source;
- a sound image localization processing step of performing sound image localization of the sound source based on the position information;
- a sound field effect sound generating step of generating a sound field effect sound by individually imparting a sound field effect to an audio signal of each of the channels;
- and
- a control step of controlling, based on the position information, the sound field effect to be imparted in the sound field effect sound generating step;
- a control step of controlling, according to a change command to change a listening environment, a sound image position in the sound image localization processing step;
- a converting step of converting the generated sound field effect sound associated with each of the channels;
- and
- an amplifying step of amplifying the converted sound field effect sound of each of the channels and output to respective speaker units.
Dependencies are inferred from the claim text.