Abstract: A sound processing apparatus includes a first microphone which acquires environmental sound, a second microphone which acquires sound of a noise source, and a CPU which causes the sound processing apparatus to function as a noise detection unit configured to generate a noise signal of the noise source according to a sound signal from the second microphone, the noise detection unit reducing sound other than noise of the noise source from the sound signal from the second microphone and generating the noise signal, and a noise reducing unit configured to reduce the noise of the noise included in a sound signal from the first microphone using the sound signal from the noise detection unit.

Abstract: A sound processing apparatus includes a first microphone which acquires environmental sound, a second microphone which acquires sound of a noise source, and a CPU which causes the sound processing apparatus to function as a noise detection unit configured to generate a noise signal of the noise source according to a sound signal from the second microphone, the noise detection unit reducing sound other than noise of the noise source from the sound signal from the second microphone and generating the noise signal, and a noise reducing unit configured to reduce the noise of the noise included in a sound signal from the first microphone using the sound signal from the noise detection unit.

Abstract: A signal processing apparatus includes: an acquisition unit configured to acquire a sound collection signal based on collection of sounds in a sound collection target region by a plurality of microphones; an identification unit configured to identify a position or a region corresponding to an object in the sound collection target region; and a generation unit configured to generate a plurality of acoustic signals corresponding to a plurality of divided areas obtained by dividing the sound collection target region based on the identified position or the identified region, using the acquired sound collection signal.

Abstract: A sound system includes an acquisition unit configured to acquire a sound collection signal that includes sound collected from a sound collection target area, a plurality of generation units configured to generate a plurality of sound signal corresponding to a plurality of divided areas included in the sound collection target area based on a sound collection signal acquired by the acquisition unit, a determination unit configured to determine by which generation unit from among the plurality of generation units a sound signal corresponding to each of the plurality of divided areas is to be generated, and a control unit configured to control the plurality of generation units so that the sound signal corresponding to each of the divided areas is generated by a generation unit according to determination of the determination unit.

Abstract: A sound signal processing apparatus includes a sound acquisition unit, a processing unit, an output unit, and a control unit. The sound acquisition unit is configured to acquire sound data generated by collecting a sound from a sound-collecting target space. The processing unit is configured to execute, on the sound data acquired by the sound acquisition unit, signal processing corresponding to each of a plurality of areas included in the sound-collecting target space. The output unit is configured to output processed data generated based on the signal processing executed by the processing unit. The control unit configured to perform control such that an amount of processing performed by the processing unit does not exceed a predetermined amount of processing.

Abstract: An audio signal processing device includes a sound acquisition unit configured to acquire audio data generated by collecting a sound in a sound collection target space, a selection unit configured to select, based on a priority of each of a plurality of areas in the sound collection target space, one or more of the areas in the sound collection target space, and an output unit configured to output processed data, for which predetermined signal processing for the areas selected by the selection unit is executed on the audio data acquired by the sound acquisition unit, and the predetermined signal processing for an area not selected by the selection unit is not executed on the audio data.

Abstract: An information processing apparatus includes a holding unit configured to hold a plurality of head related transfer functions for outputting directional sound in a plurality of directions, a setting unit configured to set a direction in which a first head related transfer function and a second head related transfer function are switched, based on characteristics of the first head related transfer function and the second head related transfer function, and a switching unit configured to switch a head related transfer function used to output the directional sound between the first head related transfer function and the second head related transfer function in the set direction.

Abstract: A control apparatus comprises a first obtaining unit configured to obtain a result of sound collection performed by a sound collection apparatus that collects a measurement signal as a sound, the measurement signal being output from an output apparatus; a detection unit configured to detect a position of the output apparatus or the sound collection apparatus relative to a measurement-subject person; and a second obtaining unit configured to obtain a head-related transfer function of the measurement-subject person based on the result of sound collection obtained by the first obtaining unit and the position detected by the detection unit.

Abstract: A control apparatus includes: a displacement detection unit adapted to detect, based on a result of acquiring audio outputted from an output apparatus, the result of acquiring being acquired in a display apparatus that displays an image in accordance with motion, and the image that the display apparatus displays, displacement between coordinate axes of an image space according to the image that the display apparatus displays and coordinate axes of an acoustic space according to audio outputted by the output apparatus; and a correction unit adapted to correct the displacement of the coordinate axes detected by the displacement detection unit.

Abstract: A sound system includes an acquisition unit configured to acquire a sound collection signal that includes sound collected from a sound collection target area, a plurality of generation units configured to generate a plurality of sound signal corresponding to a plurality of divided areas included in the sound collection target area based on a sound collection signal acquired by the acquisition unit, a determination unit configured to determine by which generation unit from among the plurality of generation units a sound signal corresponding to each of the plurality of divided areas is to be generated, and a control unit configured to control the plurality of generation units so that the sound signal corresponding to each of the divided areas is generated by a generation unit according to determination of the determination unit.

Abstract: A signal processing apparatus includes: an acquisition unit configured to acquire a sound collection signal based on collection of sounds in a sound collection target region by a plurality of microphones; an identification unit configured to identify a position or a region corresponding to an object in the sound collection target region; and a generation unit configured to generate a plurality of acoustic signals corresponding to a plurality of divided areas obtained by dividing the sound collection target region based on the identified position or the identified region, using the acquired sound collection signal.

Abstract: A sound signal processing apparatus includes a sound acquisition unit, a processing unit, an output unit, and a control unit. The sound acquisition unit is configured to acquire sound data generated by collecting a sound from a sound-collecting target space. The processing unit is configured to execute, on the sound data acquired by the sound acquisition unit, signal processing corresponding to each of a plurality of areas included in the sound-collecting target space. The output unit is configured to output processed data generated based on the signal processing executed by the processing unit. The control unit configured to perform control such that an amount of processing performed by the processing unit does not exceed a predetermined amount of processing.

Abstract: An audio signal processing device includes a sound acquisition unit configured to acquire audio data generated by collecting a sound in a sound collection target space, a selection unit configured to select, based on a priority of each of a plurality of areas in the sound collection target space, one or more of the areas in the sound collection target space, and an output unit configured to output processed data, for which predetermined signal processing for the areas selected by the selection unit is executed on the audio data acquired by the sound acquisition unit, and the predetermined signal processing for an area not selected by the selection unit is not executed on the audio data.

Abstract: An information processing apparatus includes a holding unit configured to hold a plurality of head related transfer functions for outputting directional sound in a plurality of directions, a setting unit configured to set a direction in which a first head related transfer function and a second head related transfer function are switched, based on characteristics of the first head related transfer function and the second head related transfer function, and a switching unit configured to switch a head related transfer function used to output the directional sound between the first head related transfer function and the second head related transfer function in the set direction.

Abstract: An information processing apparatus includes: an acquisition unit adapted to acquire activities corresponding to a plurality of bases from an audio signal; a determination unit adapted to determine whether the plurality of acquired activities have a specific characteristic; and an output unit adapted to output an audio signal obtained by separating, from the audio signal, a component corresponding to an activity which is determined to have the specific characteristic by the determination unit.

Abstract: An apparatus of this invention stably separates a sound source even when the relative positional relationship between the sound source and a sound pickup device has changed. This apparatus includes a sound pickup unit configured to pick up sound signals of a plurality of channels, a detector configured to detect a change in a relative positional relationship between a sound source and the sound pickup unit, a phase regulator configured to regulate a phase of the sound signal in accordance with the relative position change amount detected by the detector, a parameter estimator configured to estimate a variance and spatial correlation matrix of a sound source signal as sound source separation parameters with respect to the phase-regulated sound signal, and a sound source separator configured to generate a separation filter from the estimated parameters, and perform sound source separation.

Abstract: An audio signal in which a first audio component and a second audio component are mixed is inputted. The audio signal is transformed into a time-frequency signal representing relation between time and signal frequency. The time-frequency signal is divided into a plurality of bands. A time-frequency signal in a band, in which influence from the second audio component is small among the plurality of bands, is factorized into activity vectors composing a first activity matrix. The time-frequency signal transformed from the audio signal is factorized into activity vectors composing a second activity matrix using the first activity matrix as a teacher activity.

Abstract: A control apparatus includes: a displacement detection unit adapted to detect, based on a result of acquiring audio outputted from an output apparatus, the result of acquiring being acquired in a display apparatus that displays an image in accordance with motion, and the image that the display apparatus displays, displacement between coordinate axes of an image space according to the image that the display apparatus displays and coordinate axes of an acoustic space according to audio outputted by the output apparatus; and a correction unit adapted to correct the displacement of the coordinate axes detected by the displacement detection unit.

Abstract: A control apparatus comprises a first obtaining unit configured to obtain a result of sound collection performed by a sound collection apparatus that collects a measurement signal as a sound, the measurement signal being output from an output apparatus; a detection unit configured to detect a position of the output apparatus or the sound collection apparatus relative to a measurement-subject person; and a second obtaining unit configured to obtain a head-related transfer function of the measurement-subject person based on the result of sound collection obtained by the first obtaining unit and the position detected by the detection unit.

Abstract: A noise suppression apparatus using spectral subtraction is provided. A noise estimation unit estimates noise components included in a mixed signal. A fundamental frequency of the mixed signal is detected. A subtraction factor in the spectral subtraction is set based on the detected fundamental frequency. The spectral subtraction for the mixed signal is executed using the set subtraction factor and the estimated noise components. A boundary frequency at the fundamental frequency or a frequency lower than the fundamental frequency is set, and a subtraction factor for a frequency lower than the boundary frequency is set to assume a value larger than a subtraction factor for a frequency not less than the boundary frequency.