A wireless communication device and a wireless communication method capable of curbing occurrence of latency even when performing wireless communication at predetermined time intervals are provided. MIDI data is transmitted and received by communication (B) performed through a wireless module during an intermission between communications (A) performed at predetermined time intervals through the wireless module. Accordingly, a communication speed for wireless communication is improved. Therefore, compared to a case in which wireless communication is performed by only the communication (A), MIDI data can be quickly transmitted and received, and thus occurrence of latency can be curbed.

An electric stringed musical instrument (e.g., guitar) system includes an acoustics system and an electronics system (module). The electronics system includes a base shaped to slidably engage the slot in the acoustics system. The module is held in place by respective sets of magnets in the acoustics system and the electronics system. The aggregate magnetic force near a bottom edge of the electronics system are stronger than the aggregate magnetic force near a top edge of the electronics system to ensure alignment of the bottom edges of the acoustics system and the electronics system.

Various methods are presented that facilitate the connection of a speaker system to a separate functional system. In some embodiments, the connection is made through a male and female connector designed to twist into a locking position. In other embodiments, the connection is made by a guided connection with beveled edges to facilitate correct alignment of the speaker system. In still other embodiments, the connection includes mechanical locking mechanisms with a quick disconnect feature. In other embodiments, the connection also facilitates transmission of electrical signals through the connector.

Various methods are presented that facilitate the connection of a speaker system to a separate functional system. In some embodiments, the connection is made through a male and female connector designed to twist into a locking position. In other embodiments, the connection is made by a guided connection with beveled edges to facilitate correct alignment of the speaker system. In still other embodiments, the connection includes mechanical locking mechanisms with a quick disconnect feature. In other embodiments, the connection also facilitates transmission of electrical signals through the connector.

A percussion controller comprises an instrumented striker including devices for obtaining inertial measurements and a wireless transmitter, a sensor-enabled striking surface that receives an impact from the instrumented striker, and a data processing system that receives the inertial measurements and predicts at least one of the force or location of impact of the instrumented striker on the sensor-enabled striking surface before impact actually occurs.

A device is provided for capturing vibrations produced by an object such as a musical instrument such as a drum head of a drum kit. The device comprises a detectable element, such as a ferromagnetic element, such as a metal shim and a sensor spaced apart from and located relative to the musical instrument. The detectable element is located between the sensor and the musical instrument. When the musical instrument vibrates, the sensor remains stationary and the detectable element is vibrated relative to the sensor by the musical instrument.

A device is provided for capturing vibrations produced by an object such as a musical instrument such as a drum head of a drum kit. The device comprises a detectable element, such as a ferromagnetic element, such as a metal shim and a sensor spaced apart from and located relative to the musical instrument. The detectable element is located between the sensor and the musical instrument. When the musical instrument vibrates, the sensor remains stationary and the detectable element is vibrated relative to the sensor by the musical instrument.

Methods and apparatus to extract a pitch-independent timbre attribute from a media signal are disclosed. An example apparatus includes an audio characteristic extractor to determine a logarithmic spectrum of an audio signal; transform the logarithmic spectrum of the audio signal into a frequency domain to generate a transform output; determine a magnitude of the transform output; and determine a timbre attribute of the audio signal based on an inverse transform of the magnitude.

Methods and apparatus to extract a pitch-independent timbre attribute from a media signal are disclosed. An example apparatus includes an audio characteristic extractor to determine a logarithmic spectrum of an audio signal; transform the logarithmic spectrum of the audio signal into a frequency domain to generate a transform output; determine a magnitude of the transform output; and determine a timbre attribute of the audio signal based on an inverse transform of the magnitude.

A wireless communication device and a wireless communication method are provided. When a master mode is set in a mode memory, a mode setting notification is transmitted to a different wireless communication device. When a mode setting permission notification for the mode setting notification is received from the different wireless communication device, the master mode is settled as a communication mode, and the master mode is set in the mode memory. When a slave mode is set in the mode memory and when a mode setting notification is received from the different wireless communication device, the slave mode is settled as the communication mode, the slave mode is set in the mode memory, and a mode setting permission notification is transmitted to the different wireless communication device. Thus, the communication mode can be automatically set in a pair of wireless communication devices.