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7551742 |
Acoustic signal-processing apparatus and method
A band-dividing unit is operable to extract a low frequency component from an input signal in order to generate overtones based on the extracted low frequency component, and is further operable to...
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7470854 |
Electronic music apparatus
Electronic music apparatus includes: a tone generator section for generating a tone signal in response to operation of a performance operator unit; an external input section for receiving a tone...
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6198034 |
Electronic tone generation system and method
An electronic tone generation system comprises a plurality of portable handheld wireless transmitters, with each transmitter representing at least one music note and being operative to transmit a...
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5569871 |
Musical tone generating apparatus employing microresonator array
A musical tone generating apparatus employs an array of microresonant structures to generate the harmonic component signals of a musical tone to be generated. The microresonant structures produce...
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5424488 |
Transient discriminate harmonics generator
A transient discriminate harmonics generator which receives an audio input signal and produces an output signal containing harmonics of the input signal. The output signal is amplitude shaped as a...
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5194684 |
Method and apparatus for selective reduction of upper harmonic content in digital synthesizer excitation signals
Variable frequency sawtooth waveforms are often utilized as an excitation signal in a digital musical synthesizer. A problem exists at lower sampling rates in such systems due to an aliasing...
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4909116 |
Electronic musical instrument generating background musical tone
An electronic musical instrument includes a keyboard, a first tone generator, a second tone generator, a hold switch, and a control unit. The keyboard designates a pitch of a musical tone to be...
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4813328 |
Formant filter generator for an electronic musical instrument
In the production of a desired musical waveform by combining harmonic components corresponding to respective harmonic orders, each harmonic component value is controlled by a selected cut-off...
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4811644 |
Electronic musical instrument for generation of inharmonic tones
The present invention is directed to an electronic musical instrument which has a circuit for calculating a harmonic function corresponding to a fundamental wave. The electronic musical instrument...
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4409877 |
Electronic tone generating system
A tone generating system for an organ comprises a first group of tone generators for producing notes of a first chromatic scale and second group of tone generators for producing notes of a second...
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4290334 |
Electronic wave sharing synthetic sound system
An electronic sound system especially effective with bell sounds synthesizes the approximate sound of each bell in a set of 49 switch operated bell sounds. The synthesizing is accomplished by...
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4262574 |
Integrated I.sup.2 L circuit for superimposing audio-frequency electrical signals of an electronic organ
An I 2 L circuit for superimposing audio-frequency electrical signals in an electronic organ is provided. With each current unit of audio-frequency to be superimposed a double-collector I 2 L...
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4226157 |
Waveform synthesis for an electronic musical instrument
A plurality of rectangular waves of selected duty cycles and fundamental frequencies are generated. Selected ones of these waveforms are then added at selected amplitude ratios. Such additions...
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4193332 |
Music synthesizing circuit
A music synthesizer is disclosed. In the preferred embodiment, it cooperates with a tone source, such as a conventional or traditional music instrument, to form a synthesized output. The output can...
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4181059 |
Circuit for simulating sound of wire brush rotated around head of snare drum
An electronic musical circuit simulates the sound of a wire brush rotated around the head of a snare drum by differently amplitude modulating and bandpass filtering in separate channels a noise...
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4175465 |
Circuit for simulating string bass sound
In a circuit for simulating the sound produced when a stringed instrument, such as a bass viol, is plucked, square wave signals of different frequencies from a tone generator are combined to...
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4150253 |
Signal distortion circuit and method of use
A method and apparatus are described for electronically processing sound. An electrical signal derived from audio information is split up into two separate signal paths. The signal travelling along...
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4070943 |
Electronic organ keying system
An organ is described in which a small number of note generators, each comprising a binary divider, a group of keyers, and an envelope generator, serves an entire keyboard. Each note generator is...
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4044643 |
Musical instrument circuit providing celeste and vibrato effects
A circuit is shown for changing the frequency of a basic keyed oscillator by controlling the amount of keying voltage reaching the oscillator and the circuit used for vibrato. The purpose of this...
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4012702 |
Chime generating circuit
A circuit for electronically generating chime-like tones wherein an oscillator circuit output is passed through a diode bridge having another diode across the D.C. terminals thereof and poled to be...
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3971283 |
Electronic Zimbelstern
An electronic Zimbelstern system in which a sequential counter actuates a set of self-damping circuits in a predetermined repeating sequence, the self-damping circuits each enabling a different set...
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3935783 |
Electronic piano circuit
The embodiment of the invention disclosed herein is directed to an electronic musical instrument of the keyboard type used to electronically reproduce piano sounds. The circuit has means to vary...
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3916322 |
Tone synthesizer for electronic musical instruments
A driving signal is divided into a plurality of synchronous harmonically related square waves. From the thusly created square waves, the harmonic components of a desired musical voice are selected,...
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3867862 |
ELECTRICAL MUSICAL INSTRUMENT
Each of two related systems produces narrow bands of electrical "noise" corresponding to pipe-organ steady wind-noise components peculiarly related in frequency to the harmonics of a main...
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3775545 |
ELECTRONIC MUSICAL INSTRUMENT EMPLOYING A SAMPLING SYSTEM AS A COUPLER
An electronic musical instrument employing a sampling system as a coupler for obtaining a musical tone by coupling a plurality of tone signals together. The system includes sampling circuits each...
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3757023 |
HARMONIC SYNTHESIS ORGAN SYSTEM
A harmonic synthesis organ in which a complex wave tone generator generates signals corresponding to the frequencies of the fundamentals and hormonic partials. The complex tones are gated and are...
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3755609 |
INTEGRATED CIRCUIT ALL-HARMONIC WAVE ORGAN SYSTEM INCLUDING PROVISION FOR FLUTE TONES AND PEDAL NOTES
A bright wave (all harmonic wave) organ system which has direct current (D.C.) keying for all notes, both manual and pedal, and also provides sine wave (flute) notes by filtration. All-harmonic...
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3748598 |
ORGAN TONE MODULATION SYSTEMS
Organ output, comprising a band of audio frequencies, is divided into four frequency sub-bands, each of which is shifted in frequency by one of four respective diverse increments. The first and...
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3739071 |
TONE-COLOR FORMING CIRCUIT IN ELECTRONIC MUSICAL INSTRUMENT
A tone-color forming circuit in an electronic musical instrument comprises fundamental tone and second harmonic tone producing circuits operable in mutual in-phase relationship, a first switching...
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3723633 |
BASS TONE PRODUCING DEVICE FOR AN ELECTRONIC MUSICAL INSTRUMENT
In a keyboard electronic musical instrument having pedal keys, a bass tone producing device comprises a fundamental bass tone signal source for generating 16' bass tone signals having predetermined...
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3668294 |
ELECTRONIC SYNTHESIS OF SOUNDS EMPLOYING FUNDAMENTAL AND FORMANT SIGNAL GENERATING MEANS
A sound generating system comprising means for producing signals of fundamental frequency, and means for generating formant frequency signals of frequency higher than the fundamental frequency...
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3626076 |
MIXER CIRCUIT FOR ELECTRONIC MUSICAL INSTRUMENT PROVIDING STAIRCASE TONE SIGNAL
Disclosed is a tone generator circuit for use in an electronic musical instrument, in which respective output terminals of a plurality of cascaded flip-flop circuits are connected to control...
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3624265 |
TONE-GENERATING DEVICE FOR ELECTRONIC MUSICAL INSTRUMENT
An electronic musical instrument comprises a keyboard associated with a DC power source to produce a controlling DC voltage, a plurality of variable frequency oscillators which produce tone signals...
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3539698 |
KEYBOARD TYPE ELECTRONIC MUSICAL INSTRUMENT
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3510565 |
ELECTRONIC ORGAN WITH MUSICAL NOTES COMPRISING BEAT FREQUENCIES OF A REFERENCE GENERATOR AND NOTE GENERATORS UTILIZING MAGNETOSTRICTIVE OSCILLATORS
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3505461 |
ELECTRONIC MUSICAL INSTRUMENT FOR PRODUCING NOVEL ACOUSTIC EFFECTS FROM MULTITONE SIGNALS
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3495021 |
CHIFF AND TONE GENERATOR
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3480718 |
ORGAN PERCUSSION SYSTEM PROVIDING PERCUSSIVE HARMONIC SYNTHESIS
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3446905 |
ELECTROPHONIC MUSICAL INSTRUMENT
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3441653 |
SIGNAL WAVEFORM GENERATION
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3432608 |
COMPLEMENTARY HARMONIC SYSTEM FOR FLUTE TYPE ORGANS
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3355539 |
Sampling tone generator system for electronic organs
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3334173 |
Organ additive prevoicing system
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3048071 |
Electrical musical instrument having mechanically vibratable tone generators
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3041910 |
Electrical circuit arrangement for complex wave generators
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3007363 |
Tone generator
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2941435 |
Electronic tone generator system
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2793554 |
Apparatus for use with tone producing devices
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