A driving sound generation device includes: an acquirer that acquires vehicle information; a storage that stores a plurality of sound source data including driving sound source data and masker sound source data for generating a masker sound; a first adjuster that performs a first adjustment of the plurality of sound source data in accordance with the vehicle information; a second adjuster that performs a second adjustment of at least one of the plurality of sound source data after the first adjustment when the determiner determines that a change amount is smaller than or equal to a predetermined change amount; and a synthesizer that mixes the plurality of sound source data after the second adjustment to generate a driving sound to be output into a cabin of the vehicle; and an outputter that outputs, to the cabin of the vehicle, the driving sound generated.

A driving sound generation device includes: an acquirer that acquires vehicle information; a storage that stores a plurality of sound source data including driving sound source data and masker sound source data for generating a masker sound; a first adjuster that performs a first adjustment of the plurality of sound source data in accordance with the vehicle information; a second adjuster that performs a second adjustment of at least one of the plurality of sound source data after the first adjustment when the determiner determines that a change amount is smaller than or equal to a predetermined change amount; and a synthesizer that mixes the plurality of sound source data after the second adjustment to generate a driving sound to be output into a cabin of the vehicle; and an outputter that outputs, to the cabin of the vehicle, the driving sound generated.

Provided is a mobile terminal capable of reducing cost for carrying out active noise control and/or active sound effect control. Provided is a mobile terminal that carries out active noise control in which, in order to reduce driving source sound transmitted from a driving source to the vehicle interior of a vehicle, a first control signal for outputting cancellation sound from a speaker provided in the vehicle interior is generated, and/or active sound effect control in which a second control signal for outputting from the speaker a sound effect resembling the driving source sound is generated, wherein the vehicle has an on-vehicle system that controls the speaker, and the first control signal and/or the second control signal is transmitted to the on-vehicle system.

An object is to improve accuracy of prediction of a result of scoring relating to user's singing of a new musical piece. A prediction device is a device that acquires a result of scoring relating to a user's singing of a musical piece in the past for each section of the musical piece in time, acquires pitch information representing pitches of notes configuring the musical piece and aligned in a time series in the section, builds a learning model predicting a result of scoring relating to the user's singing of a musical piece from the pitch information using the result of scoring and the pitch information as training data, and acquires a result of scoring relating to the user's singing of a new musical piece on the basis of an output of the learning model by inputting the pitch information about the new musical piece to the learning model.

A wave generator has a wave emitter including an elongated dispersive waveguide and a source operatively connected to a first end of the waveguide. The source covers at least partially a surface area thereof. A signal generator is in operative connection with the transducer to create electrical signals. A computer is in operative connection with the signal generator to cause it to generate the electrical signals. A mechanical input wave is created by the source at the first end of the waveguide. The mechanical input wave is constructed independently of data related to a mechanical wave received from a source in the medium and taking into account the different predetermined propagation velocities of at least two component waves of the mechanical input wave so that they combine with each other at a second end of the waveguide to form the desired mechanical output wave in the medium.

The ultrasonic tubular transducer is activated at the centre thereof by two symmetrical electromechanical converters. The vibration generated by the two electromechanical converters is converted and then transmitted to the tube via a coupler. The ultrasonic transducer can be vibrationally isolated from the interfaces thereof by caps equally suitable for connecting the transducer to a stationary frame, a free end or another similar ultrasonic transducer. A device for pre-stressing electromechanical converters has a hole bored at the centre thereof in order to allow cables from the transducer as well as from adjacent transducers to pass therethrough.

A musical instrument includes a hollow and compressible body made of a flexible and elastic material, delimiting an internal cavity divided into two chambers by an internal wall through which a musical insert is mounted. The body is closed in a sealed manner such that the two chambers are hermetic and communicate only via the musical insert. Said musical insert is designed to emit a sound when passed through by an air flow generated by a mechanical pressure exerted on said body at the level of one of the chambers, which pushes some of the air volume from this chamber into the other chamber through said musical insert. Thus, this musical instrument is said to be “clean” because it does not need to communicate with the external environment in order to generate a sound, and is perfectly safe.

An apparatus for controlling virtual engine sound, which includes a sensor unit configured to detect a position of a pedestrian in front of a vehicle, a speaker unit configured to output a virtual engine sound in all directions of the vehicle or output a sound guidance message only to the position of the pedestrian, and a control unit configured to cause the speaker unit to operate in either a virtual engine sound system (VESS) mode or a pedestrian communication mode in which the sound guidance message is transmitted only to the pedestrian's position, by changing a sound focal point output through the speaker unit.

An apparatus for controlling virtual engine sound, which includes a sensor unit configured to detect a position of a pedestrian in front of a vehicle, a speaker unit configured to output a virtual engine sound in all directions of the vehicle or output a sound guidance message only to the position of the pedestrian, and a control unit configured to cause the speaker unit to operate in either a virtual engine sound system (VESS) mode or a pedestrian communication mode in which the sound guidance message is transmitted only to the pedestrian's position, by changing a sound focal point output through the speaker unit.

An information processing apparatus including a controller (130) configured to, based on a detected state of the apparatus, control outputting of sound that is performed by the apparatus, wherein the controller is configured to, according to an amount of change in the state, sequentially change a mode of outputting a synthetic sound that can be output by the apparatus in a normal state is provided. Furthermore, an information processing method including, by a processor, based on a detected state of an apparatus, controlling outputting of sound that is performed by the apparatus, wherein the controlling includes, according to an amount of change in the state, sequentially changing a mode of outputting a synthetic sound that can be output by the apparatus in a normal state is provided.