Abstract: A noise cancellation signal generation device includes a reference sensor; a speaker that outputs sound based on a noise cancellation signal a memory that records second information for obtaining a filter coefficient of a noise cancellation filter calculated on the basis of first information obtained in consideration of a change in a relative position between the speaker and a noise cancellation point and a noise cancellation processor that acquires the second information from the memory using a signal acquired by a sensor, and generates the noise cancellation signal on the basis of the filter coefficient obtained from the acquired second information and a reference signal acquired by the reference sensor.

Abstract: A steam turbine nozzle deformation amount managing apparatus in an embodiment includes a display information generation section configured to generate display information for displaying: past deformation amount related information indicating information on a past deformation amount of a nozzle of a steam turbine from the past to the present calculated based on measured information; and future deformation amount related information indicating information on a future deformation amount of the nozzle calculated based on a future operating condition input via a user interface screen and the past deformation amount related information.

Abstract: A sound processing device that performs sound processing mainly for a hearing aid device is to be provided. The sound processing device includes: an information estimation unit that estimates control information, on the basis of hearing threshold information regarding a hearing threshold at each frequency, and input sound information; and a signal processing unit that processes an input sound signal, on the basis of the estimated control information. The hearing threshold information is a threshold measurement result obtained by measuring the hearing threshold of the user of the sound processing device at each frequency. The information estimation unit estimates information regarding an acceptable delay amount or noise canceling characteristics in the signal processing unit.

Abstract: The present disclosure relates to an information processing device, an information processing method, and a program each capable of measuring a position and a posture by using sound without bringing discomfort to a user. A spread code signal emitted from each of multiple sound output blocks present at known positions, shifted to a frequency band that is not easily perceivable for a human sense of hearing, and based on a spread code to which spread spectrum modulation has been applied is received. The received spread code signal of a sound signal is reversely shifted. The own absolute position and the own absolute posture are calculated on the basis of the reversely shifted spread code signal, and angular velocity and acceleration detected by an IMU. The present disclosure is applicable to a game controller and an HMD.

Abstract: An information processing method of an information processing system (200,201) according to the present disclosure includes an adjustment manipulation accepting step and a feedback output step. The adjustment manipulation accepting step accepts adjustment manipulation of the sound output from the sound output unit. The feedback output step estimates the auditory capacity of the user corresponding to the adjustment manipulation from the adjustment manipulation and the signal data of the sound corresponding to the adjustment manipulation, and outputs the feedback.

Abstract: An information processing method for an information processing system (1) according to the present disclosure includes a processed sound generation step and an adjustment step. In the processed sound generation step, the processed sound is generated by acoustic processing using a parameter that changes a sound collection function or a hearing aid function of a sound output unit. In the adjustment step, the sound output unit is adjusted by a parameter selected on the basis of a parameter used for the acoustic processing and feedback on the processed sound output from the sound output unit.

Abstract: To provide a mechanism for selectively taking an external sound from an appropriate sound source into an internal space of a moving object. An information processing apparatus including an acquisition unit configured to acquire an audio signal from a sound source existing outside a moving object, a generation unit configured to generate an audio signal from a target sound source at a distance from the moving object, the distance being a distance according to a speed of the moving object, of the sound sources, on the basis of the audio signal acquired by the acquisition unit, and an output control unit configured to output the audio signal generated by the generation unit toward an internal space of the moving object.

Abstract: Provided is a speaker unit that constitutes a sound system that reduces noise in an open space, including: a housing; a driver; and a microphone, in which the microphone and the driver are provided in the housing such that sensitivity of the microphone to a signal output from the driver is lower.

Abstract: The present technology relates to a noise cancellation signal generation device, method, and program capable of improving noise reduction performance. A noise cancellation signal generation device includes: a reference sensor; a speaker that outputs sound based on a noise cancellation signal; a memory that records second information for obtaining a filter coefficient of a noise cancellation filter calculated on the basis of first information obtained in consideration of a change in a relative position between the speaker and a noise cancellation point; and a noise cancellation processor that acquires the second information from the memory using a signal acquired by a sensor, and generates the noise cancellation signal on the basis of the filter coefficient obtained from the acquired second information and a reference signal acquired by the reference sensor. The present technology can be applied to an ANC system.

Abstract: Provided is an information processor including a signal processing section that acquires a first signal to be detected by an acoustic input section of a first unit including the acoustic input section disposed within a predetermined distance from one ear hole of a user in a state of being worn by the user, acquires a second signal, which indicates a noise generated from a noise source, to be acquired by a second unit, and generates a noise cancellation signal directed to the noise on the basis of the first signal and the second signal.

Abstract: To provide a mechanism for selectively taking an external sound from an appropriate sound source into an internal space of a moving object. An information processing apparatus including an acquisition unit configured to acquire an audio signal from a sound source existing outside a moving object, a generation unit configured to generate an audio signal from a target sound source at a distance from the moving object, the distance being a distance according to a speed of the moving object, of the sound sources, on the basis of the audio signal acquired by the acquisition unit, and an output control unit configured to output the audio signal generated by the generation unit toward an internal space of the moving object.

Abstract: A signal processing apparatus includes a signal processor configured to: generate a first noise reduction signal using an adaptive filter based on a signal output from a first input apparatus, and cause the generated first noise reduction signal to be output by a first output apparatus; and generate a second noise reduction signal using a feedback filter based on a signal output from a second input apparatus, and cause the generated second noise reduction signal to be output by a second output apparatus. The feedback filter has a fixed feedback coefficient. The first input apparatus is located at a first noise-cancellation target location in an environment, and the second input apparatus is located at a second noise-cancellation target location in the environment, which may be different from the first noise-cancellation target location.

Abstract: A signal processing apparatus includes a signal processor configured to: generate a first noise reduction signal using an adaptive filter based on a signal output from a first input apparatus, and cause the generated first noise reduction signal to be output by a first output apparatus; and generate a second noise reduction signal using a feedback filter based on a signal output from a second input apparatus, and cause the generated second noise reduction signal to be output by a second output apparatus. The feedback filter has a fixed feedback coefficient. The first input apparatus is located at a first noise-cancellation target location in an environment, and the second input apparatus is located at a second noise-cancellation target location in the environment, which may be different from the first noise-cancellation target location.

Abstract: A signal processing apparatus includes a signal processor configured to: generate a first noise reduction signal using an adaptive filter based on a signal output from a first input apparatus, and cause the generated first noise reduction signal to be output by a first output apparatus; and generate a second noise reduction signal using a feedback filter based on a signal output from a second input apparatus, and cause the generated second noise reduction signal to be output by a second output apparatus. The feedback filter has a fixed feedback coefficient. The first input apparatus is located at a first noise-cancellation target location in an environment, and the second input apparatus is located at a second noise-cancellation target location in the environment, which may be different from the first noise-cancellation target location.

Abstract: [Object] There is proposed a mechanism that allows for a higher noise cancellation effect by operating a plurality of units in coordination. [Solution] An information processor including a signal processing section that: acquires a first signal to be detected by an acoustic input section of a first unit including the acoustic input section disposed within a predetermined distance from one ear hole of a user in a state of being worn by the user; acquires a second signal, which indicates a noise generated from a noise source, to be acquired by a second unit; and generates a noise cancellation signal directed to the noise on the basis of the first signal and the second signal.

Abstract: [Object] To provide a structure that can effectively reduce a noise containing a component varying in characteristic. [Solution] A signal processing apparatus including: a signal processing section configured to generate a first noise reduction signal using an adaptive filter on the basis of a signal output from a first input apparatus, and cause the generated first noise reduction signal to be output by a first output apparatus, and generate a second noise reduction signal using a fixed filter on the basis of a signal output from a second input apparatus, and cause the generated second noise reduction signal to be output by a second output apparatus.

Abstract: [Object] To provide a signal processing device, a signal processing method, and a program. [Solution] The signal processing device includes: a first arithmetic processing unit that performs first suppressing processing for suppressing a first audio signal based on a first microphone on a basis of a second audio signal based on a second microphone; and a second arithmetic processing unit that performs second suppressing processing for suppressing the second audio signal on a basis of the first audio signal.

Abstract: By allowing the movement of a user to affect the playback of content, the entertainment characteristic or uplifting spirits derived from content playback itself can be enhanced. The timing at which the user places his/her foot on the ground while walking or the timing at which the user shakes or changes from swinging in one direction to swinging to another direction is detected. Then, content, such as a music piece or moving pictures, is played back by allowing the timing of beats or bars of the music piece or the timing of scene changes or cut changes of the moving pictures to be synchronized with the timing of the movement of the user.