Abstract: A microphone to generate A format signals used for ambisonics includes: a body of the microphone, first through fourth microphone elements provided facing sound pickup directions different from each other in the body and configured to output respective first signals to be components of the A format signals; and a six-axis sensor configured to detect displacement of the body and output information on a position of the body.

Abstract: Disclosed embodiments include a MEMS lens system comprising a first lens holder comprising a first lens, an aperture layer comprising an aperture, a lens actuator system, and an image sensor.

Abstract: A preamplifier for musical instruments includes: an operational amplifier 40 to amplify an inputted analog audio signal; a dual-unit variable resistor 30 to change an amplification factor of the operational amplifier 40 by manually operating an operation unit; an A/D converter 51 to convert the amplified analog audio signal to a digital audio signal; and a digital signal processor 60 to digital-signal process the digital audio signal, wherein the dual-unit variable resistor 30 includes a second variable resistor 32 to output a detection signal in accordance with an amount of operation of the operation unit, and the digital signal processor 60 is capable of implementing, based on a value of the detection signal, a first digital gain process to amplify the digital audio signal and/or a second digital gain process to attenuate the digital audio signal.

Abstract: A controller to control an electronic musical instrument includes: first to third input units for a user to input play data and a frame having the first to third input units arranged therein. The frame has a wall surrounding an internal space, the wall has a three dimensional surface, the first to third input units configure one set, and the first to third input units configuring one such set are arranged adjacent in a circumferential direction of the three dimensional surface and the plurality of sets are arranged adjacent in a longitudinal direction of the three dimensional surface.

Abstract: A digital signal processor that is capable of suppressing a signal level of an input analog signal at not more than the maximum voltage for A/D conversion and capable of preventing distortion of an A/D converted digital signal while maintaining a good S/N ratio. The digital signal processor 2 of the present invention includes amplification factor setting mechanisms to set amplification factors of the analog amplifiers to second amplification factors lower than first amplification factors specified by amplification factor adjustment knobs, digital amplifier mechanisms to amplify A/D converted digital signals by third amplification factors lower than the first amplification factors, and digital limiter mechanisms to compare the signal levels of the digital signals amplified by the third amplification factors with a threshold defined in advance and attenuate the digital signals within the range of the third amplification factors based on a result of the comparison.

Abstract: A microphone unit for stereo recording capable of switching an arrangement of left and right microphones between a true XY technique and another technique. A microphone unit for stereo recording, including: a pair of unidirectional left and right microphones; and a retractable mechanism joined to the respective left and right microphones. The retractable mechanism is configured—to allow change in a horizontal angle and a vertical position of each of the left and right microphones.