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6479739 Method of controlling tone generating drivers by integrating driver on operating system  
A method is designed for controlling a plurality of tone generating drivers by an integrating driver installed in an operating system to generate music tones according to performance data created...
5728963 Low-power music synthesizer and transmitter  
This patent application describes a low-power electronic music synthesizer (1) which may be combined with a radio transmitter (2) for use in audio-kinetic sculptures or toys. The invention consists...
5506371 Simulative audio remixing home unit  
The present invention pertains to audio equipment simulative of musical instruments. The invention allows a user to simulate the playing of music reproduced from an external audio source. The...
5504270 Method and apparatus for dissonance modification of audio signals  
A method and apparatus for analyzing and reducing or increasing the dissonance of an electronic audio input signal are realized by identifying the partials of the audio input signal by frequency...
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...
5136917 Musical tone synthesizing apparatus utilizing an all pass filter for phase modification in a feedback loop  
A musical tone synthesizing apparatus has a closed-loop configuration including an adder, a filter and a delay circuit. The adder adds its feedback signal to a signal to be synthesized which is...
4879937 Sound effector  
A sound effector for changing original sound signals generated from an electric musical instrument and picked up by a pickup element. The effector having an inductance circuit into aurally improved...
4841828 Electronic musical instrument with digital filter  
A pitch synchronizing signal snychronized with the pitch of a digital tone signal to be filtered is generated by a pitch synchronizing signal generation circuit. A digital filter circuit which...
4815354 Tone signal generating apparatus having a low-pass filter for interpolating waveforms  
A tone signal generating apparatus comprises a waveform memory in which a plurality of waveform data representing different waveforms but corresponding to a same tone name are stored. These...
4757737 Whistle synthesizer  
A whistle synthesizer comprises a microphone, a housing, system electronics within the housing, and controls outside the housing. The player whistles into the microphone, the signals from which are...
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...
4315452 Electronic organ percussive modulator  
An electronic organ apparatus arranged to provide percussive musical tones by differentiating a rectangular waveform tone signal and subsequently clipping the differentiated signal at a variable...
4290335 High frequency roll-off circuit  
A high frequency roll-off circuit for a gain stage including an amplifier having a feedback network together with a dual potentiometer comprising two serially connected gang operated resistors...
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...
4287804 Electronic musical instrument with timbre selection  
A timbre-select type electronic musical instrument in which the application of a sound effect unsuitable for the selected timbre is automatically blocked. This instrument includes means for...
4282791 Keyer system for an electronic organ  
A keying system provides selectable decay times for individual frequency components of a tone to be generated by an electronic organ having a top octave generator producing a multiplicity of...
4278001 Selective keyer biasing to enhance percussion effect  
A keying system provides selectable decay times for individual components of a tone to be generated by an electronic organ having a top octave generator producing a multiplicity of rectangular wave...
4265157 Synthetic production of sounds  
A method and apparatus for producing sounds from one or more-time overlapg sequences of one or more electrical pulse signals having a frequency corresponding to the pitch of the sound to be...
4248123 Electronic piano  
An electronic musical instrument using continuous tone generators capable of simulating the sounds of a conventional acoustical piano. The instrument includes a gating circuit featuring a timed...
4248121 Pulse generator for producing the harmonic equivalent of a sawtooth wave  
An electronic organ tone generating technique produces a harmonic equivalent of a sawtooth wave. In one embodiment square waves generated by a conventional tone generator are applied to a one shot...
4218950 Active ladder filter for voicing electronic musical instruments  
A multiple-stage active RC distributed filter having multiple inputs and a single output for producing filtering of large groups of notes for tone coloration in electronic musical instruments....
4208940 Device for producing an ensemble effect  
A device for producing an ensemble effect in an electronic musical instrument. The device has a plurality of parallel electronic delay circuits adapted to be supplied with a musical tone signal,...
4191082 Key range dividing type electronic musical instrument  
An electronic musical instrument having the key range divided into upper and lower divisions, including a logical circuit converting the change-over position outputs of a key range dividing...
4186643 Apparatus for chorus effect in electronic musical instruments  
Apparatus for chorus effect in an electronic musical instrument in which a passing circuit for a musical tone signal is obtained from a musical tone signal generator by operation of a key. The...
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...
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...
4175463 Resonator for a musical tone synthesizer  
A tone synthesizer in which a musical tone of selected fundamental frequency is generated with a resonance effect at selected harmonics of the tone. The resonance effect is produced by adding an...
4160402 Music signal conversion apparatus  
Apparatus for converting the relatively rapid rise time, relatively long fall tone envelopes of a music source output to envelopes having relatively long rise time and relatively rapid fall time...
4127049 Signal generating system utilizing a cathode ray tube  
A signal generating system for an electronic musical instrument utilizing an electronic beam tube with a radiation intercepting structure and means to derive a signal from beam current pulses...
4104946 Voicing system for electronic organ  
In a voicing system for electronic organs, square wave signals from a tone generator are converted to a waveform of another shape, the harmonic structure of which is useful for producing certain...
4079653 Method and apparatus for imitating speech characteristics of vox humana and similar reed organ pipes  
In an electronic musical instrument, such as an electronic organ, the speech characteristics of Vox Humana and similar reed organ pipes are simulated by applying a repeating series of pulse groups...
4050343 Electronic music synthesizer  
An electronic music synthesizer is disclosed in which the sound producing chain includes a voltage-controlled oscillator, band-pass filter, low-pass filter, and amplifier in which selected control...
4038895 Breath pressure actuated electronic musical instrument  
A musical instrument having a general body outline similar to that of a saxaphone. A front key panel having a plurality of keys mounted thereon is located for easy fingering access to the keys...
4014237 Musical note detecting apparatus  
Apparatus for automatically detecting the pitch of individual notes of music represented in analog form by an electrical signal. The apparatus includes an arrangement of band-pass filters,...
4012981 Electronic musical instrument provided with a waveform converter for changing a sawtooth wave tone signal into a rectangular wave tone signal  
A waveform converter for use with an electronic musical instrument comprises an input for receiving a sawtooth wave tone signal, an output for delivering a rectangular wave tone signal, a...
3922943 Electronic musical instrument provided with a voltage-controlled monophonic playing section operated by a manual or pedal tone-playing section  
An electronic musical instrument comprises a voltage controlled monophonic playing section as well as conventional manual and pedal tone playing sections. There are provided first and second pitch...
3916752 Frequency conversion system for an electronic musical instrument  
A frequency conversion system for an electronic musical instrument. The system has a signal source, at least one frequency converter and an electro-acoustic transducer, and converts the fundamental...
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...
3855893 ELECTRONIC ORGAN EMPLOYING MULTIPLE WAVEFORM TONE GENERATORS AND CHIFF GENERATORS  
A musical instrument of the electronic organ type having multiple frequency generators for driving a plurality of wave-shaping circuits to produce the desired range or gamut of organ voices or...
3842183 ELECTRONIC MUSICAL INSTRUMENT PROVIDED WITH DEVICES FOR INDICATING PRESET STATE OF RESPECTIVE VOICES  
An electronic musical instrument having a plurality of tone volume setters for presetting the amplitude levels of musical tone signals of respective tone color voices comprises a plurality of...
3836693 PIANO TONE-SYNTHESIZING SYSTEM FOR ELECTRONIC MUSICAL INSTRUMENTS  
A piano tone-synthesizing system for an electronic musical instrument comprising tone generators and a keyboard provided with a plurality of keys. Operation of each key on the keyboard causes tone...
3833750 REED ACCORDION WITH PROGRAMMABLE ELECTRONIC ORGAN SOUND  
A reed accordion has a set of note generators each coupled to a respective key and is connected through a plurality of tone filters to an output. Each filter corresponds to a respective organ voice...
3826859 ELECTRONIC MUSICAL INSTRUMENT WITH FREQUENCY-DEVIATED PEDAL TONE SIGNAL  
In an electronic musical instrument, a tone signal for the pedal keyboard is obtained by frequency-dividing the manual tone signal. The pedal tone signal thus obtained is passed through a frequency...
3818115 MULTI-CHANNEL STEREOPHONIC SOUND REPRODUCING SYSTEM FOR ELECTRONIC MUSICAL INSTRUMENTS  
The multi-channel stereophonic sound reproducing system includes tone generators for generating tone signals each having a predetermined pitch and keyers each arranged to derive from the tone...
3795756 ELECTRONIC TREMOLO EFFECT PRODUCING DEVICE  
A tremolo effect producing device, wherein a frequency deviated musical sound signal the frequency of which is shifted higher or lower by as much as an extremely low frequency signal, is...
3767834 ELECTRONIC ORGAN WITH PLAYER CONTROLLED MUTED BRASS EFFECTS  
An electronic organ circuit in which an effect similar to muted brass is created by passing the organ signal through a circuit, the frequency response of which can be varied by a potentiometer...
3762265 ELECTRONIC MUSICAL INSTRUMENT HAVING TONE START PROMINENCE CIRCUIT  
An electronic musical instrument having a conventional music playing circuit arrangement with a tone signal passage including tone generators, tone keyers, tone coloring filters, an amplifier and a...
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...
3749807 ORCHESTRAL EFFECT PRODUCING SYSTEM FOR AN ELECTRONIC MUSICAL INSTRUMENT  
An orchestral effect producing system for an electronic musical instrument comprising a first keyboard for a melody performance and a second keyboard for accompaniment to the melody performance on...
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...
Matches 1 - 50 out of 122 1 2 3 >