An audio signal processing device (20) includes: an acquirer (210) configured to acquire biological information of a human subject; a processor (240) configured to identify at least one of a breathing cycle and a heartbeat cycle of the human subject, based on the biological information; and an effect imparter (250) configured to impart to an audio signal (SD) a frequency characteristic that changes at a cycle set in accordance with either the breathing cycle or the heartbeat cycle.

An electronic musical instrument uses a mouthpiece model that models a mouthpiece as a three-dimensional shape having one end at which the mouthpiece is to be held in a mouth of a performer being smaller than another end. A processor in the instrument calculates a reflection coefficient of a progressive wave and a regressive wave using the mouthpiece model by calculating a wave impedance for the progressive wave and calculating a wave impedance for the regressive wave, and generates a musical sound signal on the basis of the calculated reflection coefficient, which is then outputted to a sound generator for sound production.

An electronic musical instrument uses a mouthpiece model that models a mouthpiece as a three-dimensional shape having one end at which the mouthpiece is to be held in a mouth of a performer being smaller than another end. A processor in the instrument calculates a reflection coefficient of a progressive wave and a regressive wave using the mouthpiece model by calculating a wave impedance for the progressive wave and calculating a wave impedance for the regressive wave, and generates a musical sound signal on the basis of the calculated reflection coefficient, which is then outputted to a sound generator for sound production.

A method includes generating an audio signal, generating a control signal that is configured to control a haptic feedback device that is incorporated into a device for delivering audio based on the audio signal to a user, and embedding the control signal in the audio signal by using a pseudorandom signal to form an encoded audio signal. Another method includes receiving a signal that includes an audio signal having an embedded control signal, recovering the control signal from the received signal by using a pseudorandom signal, using the recovered control signal to control a haptic feedback device that is incorporated into a device for delivering audio, recovering the audio signal from the received signal, and using the recovered audio signal to generate audio in the device for delivering audio. Systems perform similar steps, and non-transitory computer readable storage mediums each store one or more computer programs.

A speaker system includes one or more rotating speakers (or speakers with rotating reflectors) that are synchronized in absolute angular position to another rotating speaker or synchronized to audio effects to generated by a signal processing system driving a stationary or rotary speaker. Knowledge of absolute angular position in a multi-rotor speaker array or signal processing system allows for control of rotary position to accomplish acoustic effects otherwise not possible, such as matched-velocity profiles with differential phase control and motion profiles that are not based on simple rotation.

A system determines to use at least two independent renderers to render at least two output streams that are to be synchronized. The independent renderers are provided with a shared synchronization object when instructed to render the respective output stream. A time when all of the independent renderers can render a respective first buffer of the respective output stream is determined from the shared synchronization object. Rendering of the output streams utilizing the independent renderers is begun at the determined time. In this way, rendering of the output streams may be synchronized.

There is provided a portable terminal capable of acquiring sound information successfully simply by being brought near to or into contact with the ear without the necessity of careful handling. The portable terminal includes at least a vibration member having a first surface exposed to an exterior, a vibration element operative to vibrate the vibration member in response to an electric signal corresponding to sound information, and electronic circuitry that outputs the electric signal, a difference in amplitude between individual places within the first surface of the vibration member in a vibrating state being less than or equal to 60 dB in terms of a ratio of maximum value to minimum value of amplitude. A portable terminal can be obtained that is capable of acquiring sound information successfully simply by being brought near to or into contact with the ear without the necessity of careful handling.

Methods for using at least one musical instrument mute for electronic modification of sound emitted from a musical instrument. A mute body is positionable within a bell or horn of the musical instrument, and the body has a proximal end portion and is configured to at least partially occlude the bell or horn. A microphone is positioned at the proximal end portion of the mute body and is configured to transduce a sound produced by the musical instrument. A speaker is positioned in the mute body as well. A microcontroller is configured to receive a signal from the microphone and to electronically modify the sound of the instrument when emitted through the speaker. Some mutes also provide a communication transceiver, sensors, and input devices to remotely control and manipulate sound produced by the mute.

Methods for using at least one musical instrument mute for electronic modification of sound emitted from a musical instrument. A mute body is positionable within a bell or horn of the musical instrument, and the body has a proximal end portion and is configured to at least partially occlude the bell or horn. A microphone is positioned at the proximal end portion of the mute body and is configured to transduce a sound produced by the musical instrument. A speaker is positioned in the mute body as well. A microcontroller is configured to receive a signal from the microphone and to electronically modify the sound of the instrument when emitted through the speaker. Some mutes also provide a communication transceiver, sensors, and input devices to remotely control and manipulate sound produced by the mute.

A system and method for interfacing and controlling multiple musical instrument effects modules on a common platform. The system includes: a system processor; a backplane coupled with the system processor; a plurality of musical instrument effects modules removably inserted into the backplane, each of the plurality of musical instrument effects modules including an audio input signal interface and an audio output signal interface, at least one of the musical instrument effects modules including a programmable potentiometer and/or programmable switch to modify an audio output signal; and a user interface configured to enable a user to apply a desired setting on the programmable potentiometer of the musical instrument effects modules via the system processor and the backplane.