A headphone including right and left ear pieces and a connecting portion which connects the right and left ear pieces to each other. The headphone includes a control part which changes a position at which a sound image is localized in accordance with an orientation of a user's head, with respect to at least one of a first musical sound and a second musical sound different from the first musical sound, the first musical sound and the second musical sound being input to the headphone, and a speaker which is included in each of the right and left ear pieces and to which a signal of a mixed sound of the first musical sound and the second musical sound is connected in a case where the position at which at least one sound image is localized is changed by the control part.

A reusable vibration inductor structure includes a vibration inducting sheet, Velcro tape and circular iron ring, wherein the Velcro tape of the same diameter is attached to a back of the vibration inducting sheet, the circular iron ring having a larger diameter is adapted to press against an outer rim of the Velcro tape, and an outer rim of the circular iron ring is equidistantly configured with a plurality of pressing tabs capable of being horizontally pressed back to clamp an outer rim of a front of the vibration inducting sheet with front ends thereof. Whereby, the present invention can be conveniently detached down and reattached to the surfaces of different percussion instruments.

A reusable vibration inductor structure includes a vibration inducting sheet, Velcro tape and circular iron ring, wherein the Velcro tape of the same diameter is attached to a back of the vibration inducting sheet, the circular iron ring having a larger diameter is adapted to press against an outer rim of the Velcro tape, and an outer rim of the circular iron ring is equidistantly configured with a plurality of pressing tabs capable of being horizontally pressed back to clamp an outer rim of a front of the vibration inducting sheet with front ends thereof. Whereby, the present invention can be conveniently detached down and reattached to the surfaces of different percussion instruments.

A sound controlling system including a user terminal having a sound source, a wireless communication device, a digital to analog converter (DAC) and first processing electronics. The first processing electronics are configured to: provide data of a backing sound to the sound source; control the sound source to generate a sound signal based on the data; receive a first input instruction including a first instruction to transmit the sound signal and a second instruction to play back the backing sound; provide the sound signal to the wireless communication device as the first input instruction being the first instruction, and provide the sound signal to the DAC as being the second instruction; control the wireless communication device to convert the sound signal to a wireless signal and transmit the wireless signal; and convert the sound signal from a digital signal to an analog signal for play back of the backing sound.

The pickup system for a string instrument uses a combination of a single under-string pickup, or a primary pickup, and a secondary offset pickup that is placed away from the strings. The primary pickup senses the vibrations of the strings while also picking up background noise. The secondary pickup does not pick up the vibration of the strings, only picking up the background or environmental noise. Thus, in various combinations, the secondary pickup with the primary pickup can cancel out the background noise. This cancellation occurs without creating any drag beyond that of the primary pickup.

The pickup system for a string instrument uses a combination of a single under-string pickup, or a primary pickup, and a secondary offset pickup that is placed away from the strings. The primary pickup senses the vibrations of the strings while also picking up background noise. The secondary pickup does not pick up the vibration of the strings, only picking up the background or environmental noise. Thus, in various combinations, the secondary pickup with the primary pickup can cancel out the background noise. This cancellation occurs without creating any drag beyond that of the primary pickup.

A method of controlling sound signals for mixing a backing sound and a guitar sound. The method includes configuring a user terminal to: receive a first input instruction selected from a plurality of available input instructions, where the plurality of available input instructions include a first instruction to transmit a signal of the backing sound; to provide the signal of the backing sound to a wireless communication device in response to the first input instruction being the first instruction to transmit the signal of the backing sound; and to control the wireless communication device to convert the signal of the backing sound to a first wireless signal and transmit the first wireless signal to a sound output device for mixing the signal of the backing sound and a signal of the guitar sound provided from the sound output device.

Apparatus, methods, and other embodiments associated with producing gradient waveforms derived from music are provided. A piece of encoded music (e.g., MP3 file) is converted to an encoding gradient associated with a magnetic resonance fingerprinting (MRF) pulse sequence. The encoding gradient may be optimized with respect to maximum gradient amplitude, gradient slew rate, and other properties of a magnetic resonance (MR) apparatus that will perform the MRF pulse sequence. The MR apparatus may then be controlled to perform an MRF procedure using the encoding gradient. Performing the MRF procedure using the encoding gradient may cause the MR apparatus to reproduce the piece of encoded music. The encoding gradient may be manipulated (e.g., rotated) to encode additional lines in k-space.

A musical instrument adapted for use with a turntable. Said apparatus uses a rotary pulse generator to create musical tones when in contact with the rotating platter of the turntable. Said apparatus mounts to the turntable in such a way that a rotary pulse generator rotates when in contact with the rotating turntable platter. As the radius at which the rotary pulse generator contacts the turntable platter is increased the frequency of the tone produced increases proportionally, likewise when the radius at which the rotary pulse generator contacts the turntable platter is decreased the frequency of the tone produced decreases proportionally allowing a range of pitches to be sounded.

A musical instrument adapted for use with a turntable. Said apparatus uses a rotary pulse generator to create musical tones when in contact with the rotating platter of the turntable. Said apparatus mounts to the turntable in such a way that a rotary pulse generator rotates when in contact with the rotating turntable platter. As the radius at which the rotary pulse generator contacts the turntable platter is increased the frequency of the tone produced increases proportionally, likewise when the radius at which the rotary pulse generator contacts the turntable platter is decreased the frequency of the tone produced decreases proportionally allowing a range of pitches to be sounded.