Abstract: From inputs received at one or more processors, a background audio signal representing background sound is separated from a primary audio signal. The primary audio signal is output with the background audio signal or an altered version thereof according to a user selection between noise cancellation and ambient sound reproduction. More specifically, when the user selection is for noise cancelation, the primary and background audio signals are output with a first altered version of the background audio signal (for example, having inverted phase so as to destructively interfere with the background audio signal); and when the user selection is for ambient sound reproduction, the primary audio signal is output with the background audio signal or a second altered version of the background audio signal (such as a pseudo-acoustic representation of the background sound). One example embodiment is a headset with microphones and speakers for the respective inputs and outputs.

Abstract: Devices are provided for the harmonization of mechanical and electromagnetic oscillations, which include an outer body and an inner body, both having an axially symmetric shape relative to an axis (x). The inner body may be received inside a first cavity of the outer body so as to be firmly connected to the latter. The outer body and the inner body are made of, respectively, of stainless steel and copper, and may have a weight ratio equal to 3 or the number ?. The dimensions of the device may be such that their ratios are integers, or fractions thereof, or numbers corresponding to powers of ? and/or of ?.

Abstract: A time-varying formant is generated at a formant frequency by generating first and second harmonic phase signals having first and second harmonic numbers, respectively, in relation to a modulation frequency. The first and second harmonic phase signals are generated in proportion to a master phase signal, which varies at the modulation frequency, modulo a factor corresponding to their harmonic numbers. First and second sound signals, based on the first and second harmonic phase signals, are frequency modulated to create an arbitrarily rich harmonic spectrum, depending on an FM index. The time-varying formant is generated by generating a time-varying combination of the first and second harmonic sound signals, weighting the first and second harmonic sound signals in accordance with their spectral proximities to the formant frequency. One or more of the harmonic numbers are updated when the time-varying formant frequency passes the frequency of either sound signal.

Abstract: In a waveform generation apparatus, a coordinates information group showing original waveform data in a two-dimensional phase space having a time axis and a wave height value axis is expanded to an n-dimensional phase space (n>2) including a time axis and a wave height value axis using Takens' embedding theorem, and converted to a coordinates information group showing attractor data. In addition, an area of the attractor data is shown, and after one of the coordinates information is specified from the coordinates information group within the shown area, coordinate values corresponding to a time axis in the coordinates information are acquired as time information. Then, composite waveform data is generated by a predetermined waveform data being added to the original waveform data, and the generated composite waveform data is outputted from a position of the original waveform data on a time axis corresponding to the acquired time information.

Abstract: Improved methods and apparatus of producing vibrato on keyboard percussion/tone bar instruments such as the vibraphone and marimba are provided. Means are disclosed for real time control of the expressive qualities of both the speed and strength of the vibrato of such instruments, while eliminating the need for an electrical motor. According to certain embodiments, methods and apparatus are disclosed to easily produce a change of dynamic level (crescendo and diminuendo) after a single strike of a tone bar or chord.

Abstract: Synthesis of time-varying MIDI control signals useful in creating spatial perturbation, chase effects, new forms of rich musical timbre modulation, spatially-distributed timbre constructions, and other types of sonic animation. Phase staggered multi-channel MIDI-format control signals are created using one or more low frequency oscillators, each with a plurality of phase shifting elements. Control signal waveshapers may be included in the control signal synthesis chain. In an exemplary embodiment, frequency and phase parameters are adjustable, with values that may be recalled from stored program control and/or modulated in real-time by incoming MIDI control signals. In another exemplary embodiment, each outgoing control signal additionally may be independently assigned a selectable waveshape, which is determined by values that may be recalled from stored program control and/or modulated in real-time by incoming MIDI control signals.

Abstract: A mobile wireless communication terminal includes a wireless communication module and a controller. The wireless communication module is configured to communicate with other communication terminals over a wireless interface. The controller is configured to establish a connection with a participant wireless communication terminal via the wireless communication module, to maintain a play list representing song files to be played, to receive a participant song identification from the participant wireless communication terminal, wherein the participant song identification corresponds to a participant song file stored on the participant wireless communication terminal, to add the participant song identification to the play list, and to thereafter execute playback of the song files represented by the play list, including retrieving the participant song file from the participant wireless communication terminal for playback.

Abstract: Disclosed is a piano sound source apparatus for adding a piano sound source providing a plurality of sinusoidal oscillation frequencies and a noise source providing a plurality of noise oscillation frequencies to output a composite tone. The apparatus includes an oscillation control unit that controls the frequency and amplitude of each of sine waves corresponding to the sinusoidal oscillation frequencies on the basis of time, an amplitude control unit that controls the amplitude of each of the sine waves corresponding to the sinusoidal oscillation frequencies in accordance with the intensity of the composite tone, and a mixing-proportion control unit that controls the amplitude of each of the noise oscillation frequencies in accordance with the intensity of the composite tone to control the mixing proportion of the amplitudes of the noise oscillation frequencies and those of the sine waves corresponding to the sinusoidal oscillation frequencies.

Abstract: Electronic wind instrument includes: a breath flow detector detecting a flow of breath blown by a user; a tone generator forming a tone signal; a control section controlling the tone generator on the basis of an output signal of the breath flow detector; and a zero point compensation section that, when a predetermined condition has been satisfied, compensates a zero point of the output signal of the detector on the basis of the output signal generated by the detector at the time point the predetermined condition has been satisfied. The predetermined condition is satisfied when it is detected that a zero point compensation switch operable by the user has been turned on, that no performance is being executed by the user, that a value indicated by the output signal of the detector has decreased below a predetermined threshold value, or that the wind instrument has been turned on.

Abstract: Prior art synthesizers often select a small interval d to detune. For example, if the nominal oscillator frequency was 1000 Hz, then applying a detune parameter of 10 cent would result in a detuned oscillator frequency of 1006 Hz. However, at the next octave, the nominal frequency would be 2000 Hz with the detuned oscillator frequency of 2012 Hz. Accordingly, a detuned oscillator has a frequency deviation which is proportional to its nominal frequency. Hence, when mixing detuned oscillators, the resulting signal has a beat frequency which varies with the pitch and doubles with each octave. An aim of the present invention is to provide a music synthesizer whereby sounds are generated with a constant optimum beat across a large range of tones.

Abstract: Prior art synthesizers often select a small interval d to detune. For example, if the nominal oscillator frequency was 1000 Hz, then applying a detune parameter of 10 cent would result in a detuned oscillator frequency of 1006 Hz. However, at the next octave, the nominal frequency would be 2000 Hz with the detuned oscillator frequency of 2012 Hz. Accordingly, a detuned oscillator has a frequency deviation which is proportional to its nominal frequency. Hence, when mixing detuned oscillators, the resulting signal has a beat frequency which varies with the pitch and doubles with each octave. An aim of the present invention is to provide a music synthesizer whereby sounds are generated with a constant optimum beat across a large range of tones.

Abstract: An oscillator for digital music synthesis that provides a smooth waveform that is rich in harmonic content and whose shape is continuously and dynamically variable over a wide range of harmonically rich shapes. The oscillator is efficient in that it generates the shapes in a time consonant with sampling rates commonly used in music synthesis, and is generally free of discontinuities which would otherwise create audible alias components on subsequent signal processing.

Abstract: A mount by which a component is non-destructively mounted on a musical instrument includes a receptacle and one or more abutment members, such as resilient clips, which do not screw into the instrument but engage the instrument to hold the mount on the instrument. A component is secured to the mount to install the component on the instrument. One such component provides digital control of an analog tone adjustment circuit. The digital control can include selectable preset conditions. Another such component provides on-board effects processing, such as a chorus effect. An output electrical coupling is provided with a switch used to energize the circuit of the component with which it is used.

Abstract: A multi-channel musical instrument/computer comprising a mass memory device connected to a plurality of random access memory divisions, each random access memory division connected to an oscillator bank to produce musical sounds from multiple sources simultaneously. A MIDI interface is provided to connect to another instrument or system for the reproduction and/or storage of musical sounds. A ROM card interface is provided to collect and/or play musical sounds stored on ROM cards supplied by various manufacturers.

Abstract: A musicians telephone interface that interconnects an instant location through a telephone line to a remote location such device having inputs to receive the sound from musical instruments and/or vocalization at each location with balancing circuitry and broadcast means at each location for the musicians at each location to hear the music of one another simultaneously balanced for collaboration and production of music.

Abstract: A manually played control device mounted on the playing board of an electronic keyboard instrument, to be played by one hand of a player while the other hand plays the main keys. The main keys produce usual control signals whereas the control device produces electrical control or sound signals for the variation, supplementing and completion of the control signals produced by the main keys. A plurality of continuous and/or gradual control signals can be played simultaneously for a subtle control and shaping of sound parameters, such as volume, pitch, timbre and noise, through the use of a control handle which is movable in several directions and in several planes and is sensitive to the variable load by the player's hand.

Abstract: When picking of a string is performed, the vibration of the string is detected accurately and quickly. When a fret operation position is changed during generation of a musical tone caused by the string picking, the pitch of the musical tone is changed to the one corresponding to the new fret operation position without generating a new musical tone. When the same string is stroked successively, the succeeding musical tone is generated while keeping the reverberation of the previous musical tone. The musical tone once generated will be stopped from being generated upon elapse of a predetermined time from the beginning of the tone generation, irrespective of the type of its timbre. When a fret operation state is changed to an open-string operation state after the string picking, the generation of the musical tone being generated stops at that timing.