A sound radiation apparatus includes a speaker, a first cover having an opening area provided to be superposed above at least a sound radiation port of the speaker and made up of multiple opening portions at a location superposed above the speaker, a second cover superposed on a front side of the first cover while surrounding the opening area of the first cover, and a saran net covering the first cover and a front side of the second cover and bonded to the second cover, wherein the second cover and the saran net are bonded together at an area on the second member excluding a portion surrounding the opening area of the first cover with a first adhesive and an area on the second cover surrounding the opening area of the first cover with a second adhesive having a higher bonding strength than that of the first adhesive.

A rear panel 15, which is an external member, includes a frame portion 110 including multiple sound radiation holes 150 including a first sound radiation hole 160-1 and a second sound radiation hole 160-2, a first sloping portion 160b disposed in the frame portion 110 with a first sloping surface 161a oriented in a first direction 161c, the sloping surface 161a being disposed within an area of the first sound radiation hole 160-1 in such a manner as to slope from a thickness direction (a Y-axis direction) of the frame portion 110, and a second sloping portion 162b disposed in the frame portion 110 with a sloping surface 162a oriented in a second direction 162c which differs from the first direction 161c, the sloping surface 162a being disposed within an area of the second sound radiation hole 160-2 in such a manner as to slope from the thickness direction (the Y-axis direction) of the frame portion 110.

To provide an electronic wind instrument capable of accurately detecting the amount of rotation of a transmission member. During an electronic wind instrument performance by a performer, external light (such as light from lighting) may easily shine on the upper surface side of an instrument main body. However, the light-receiving section of an optical sensor faces toward the bottom surface side of the instrument main body therefore external light from the upper surface side of the instrument main body can be prevented from reaching the light-receiving section of the optical sensor. As a result, erroneous detection of the external light by the optical sensor can be suppressed therefore the rotation amount of a transmission member can be accurately detected by the optical sensor.

To provide an electronic wind instrument capable of accurately detecting the amount of rotation of a transmission member. During an electronic wind instrument performance by a performer, external light (such as light from lighting) may easily shine on the upper surface side of an instrument main body. However, the light-receiving section of an optical sensor faces toward the bottom surface side of the instrument main body therefore external light from the upper surface side of the instrument main body can be prevented from reaching the light-receiving section of the optical sensor. As a result, erroneous detection of the external light by the optical sensor can be suppressed therefore the rotation amount of a transmission member can be accurately detected by the optical sensor.

A hand-held controller (100) for a computer is disclosed. The controller is substantially U-shaped and has front and IN rear sections (110, 130) spaced apart by a link section (140). The controller fits onto the user's hand in use so that the rear section (130) lies over the back of the hand and the front section (110) lies in the palm of the hand. The front section includes a user interface, such as a keypad, touchpad or touch area (120), to receive inputs from the user's fingers. The controller may also include a gyroscope and an accelerometer to determine the orientation and movement of the controller. The controller further comprises a transmitter for transmitting data relating to the user inputs to the computer, the data causing the computer system to carry out one or more pre-assigned actions. The pre-assigned action may comprise playing or altering an audio sound, or changing the key, pitch, tone, sound quality or volume of the audio sound. A control system for a computer comprising two hand-held controllers is also disclosed. The hand-held controllers may be the same, or one may be configured to receive only orientation and movement user inputs. A computer system comprising two hand-held controllers and a computer is also disclosed. In preferred embodiments, the computer system is a musical instrument emulator.

A hand-held controller (100) for a computer is disclosed. The controller is substantially U-shaped and has front and IN rear sections (110, 130) spaced apart by a link section (140). The controller fits onto the user's hand in use so that the rear section (130) lies over the back of the hand and the front section (110) lies in the palm of the hand. The front section includes a user interface, such as a keypad, touchpad or touch area (120), to receive inputs from the user's fingers. The controller may also include a gyroscope and an accelerometer to determine the orientation and movement of the controller. The controller further comprises a transmitter for transmitting data relating to the user inputs to the computer, the data causing the computer system to carry out one or more pre-assigned actions. The pre-assigned action may comprise playing or altering an audio sound, or changing the key, pitch, tone, sound quality or volume of the audio sound. A control system for a computer comprising two hand-held controllers is also disclosed. The hand-held controllers may be the same, or one may be configured to receive only orientation and movement user inputs. A computer system comprising two hand-held controllers and a computer is also disclosed. In preferred embodiments, the computer system is a musical instrument emulator.

A portable speaker system for an electric string instrument such as a guitar. The portable speaker system has a housing including an audio jack for receiving a raw audio signal from a guitar, an amplifier, a speaker, and a power supply. The portable speaker system attaches to the guitar by a button connector which releasably attaches to a strap button of the guitar, and a stabilizer for inhibiting rotation of the portable speaker system when attached to the guitar. The portable speaker system portably generates output sound from the raw audio signal. The portable speaker system can couple with a portable computing device, which can process the raw audio signal and provide a supplementary audio signal, from which the portable speaker system can portably generate output sound.

An electronic musical instrument for generating a plurality of audio signals can include an attitude measuring unit that is configured to measure one or more changes in an attitude of the musical instrument with respect to a reference frame in a multi-dimensional space. The musical instrument can also include a processor that is configured to generate one or more signals based on the measured changes in the attitude of the musical instrument. The musical instrument can also include an audio synthesizer that is configured to generate the plurality of audio signals based on the generated signals.

An electronic musical instrument for generating a plurality of audio signals can include an attitude measuring unit that is configured to measure one or more changes in an attitude of the musical instrument with respect to a reference frame in a multi-dimensional space. The musical instrument can also include a processor that is configured to generate one or more signals based on the measured changes in the attitude of the musical instrument. The musical instrument can also include an audio synthesizer that is configured to generate the plurality of audio signals based on the generated signals.

A modular approach to large string array electronic musical instruments such as specialized harps, zithers, sympathetic string arrays, the Harry Partch Kithara, the Harry Partch Harmonic Cannon, and other large string array electronic musical instruments is presented. A mounting frame is used to interchangeably secure a plurality of a plurality of musical instrument modules, each comprising a plurality of strings configured to vibrate and create electronic signals. An electronic interface is configured to transmit electrical signals from the plurality of musical instrument modules to an external system. The electronic interface can be configured to provide a multichannel output. The arrangement can further comprise either or both of at least one audio mixer and at least one signal processor.