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7495166 |
Sound processing apparatus, sound processing method, sound processing program and recording medium which records sound processing program
A sound-processing apparatus is provided that is capable of creating a sound effect without having to worry about changes in parameters such as the beat of the input sound source. The...
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7470849 |
Waveform generation for FM synthesis
A method and system is disclosed for generating one or more predetermined waveforms from one or more contiguous segments of at least one prototype waveform stored in one or more memory tables, the...
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RE39811 |
Musical information recording and reproducing technique for use with a recording medium having a UTOC area
There is generated a rhythm corresponding to a designated tempo and meter of a music piece to be recorded. Performance of a musical instrument is started at specific timing according to the...
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6426456 |
Method and apparatus for generating percussive sounds in embedded devices
A percussive sound contains both harmonic and non-harmonic frequency spectral content. To reproduce a particular percussive sound, such as the sound of a drum or cymbal or hand clap, for example,...
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6288320 |
Electric musical instrument
An electric musical instrument is provided, which enables rich and diverse expressions to be achieved in musical performance. A driving member drives a tone generating source. A driving member-side...
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6235980 |
Apparatus and method for generating waveform data for musical tone signal generating apparatus
A synthesized strong hit waveform data is generated by synthesizing a strong hit amplitude component separated from a strong hit waveform data generated based on tone of a strong play and a weak...
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6091269 |
Method and apparatus for creating different waveforms when synthesizing musical sounds
A circuit and method for generating waveforms when synthesizing musical sounds. In one embodiment, the invention provides a multiplexer/shifter which modifies the phase angle input according to the...
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6051772 |
Method and apparatus for emulating a frequency modulation device
A system and method are disclosed for emulating a frequency modulation sound chip with minimal hardware and utilizing the excess capacity of current computer systems. In one embodiment, the...
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6011448 |
Method and apparatus for frequency modulation synthesis
A method for frequency modulation synthesis and apparatus for performing the method. The method uses additions rather than multiplies and therefore saves the space and cost of multipliers in...
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5920843 |
Signal parameter track time slice control point, step duration, and staircase delta determination, for synthesizing audio by plural functional components
The present invention provides a system and a method for tracking parameters of a synthesized an! audio signal that reduces the amount of processing time without causing any discernible...
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5869781 |
Tone signal generator having a sound effect function
A tone signal generator includes a tone signal data generating device, a signal data generating device, and a sound effects imparting device, such as a digital signal processor. The sound effects...
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5861568 |
Generation of wave functions by storage of parameters for piecewise linear approximations
An improved method for generating various wave functions for use in musical tone generation in FM synthesis so as to substantially reduce computational and storage requirements. The waveform...
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5848165 |
Fat sound creation means
Intermodulation means for the emulation and exaggeration of an aspect of vacuum tube amplifiers by solid state, digital, speaker or other means. The intermodulation means produces intermodulation...
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5808221 |
Software-based and hardware-based hybrid synthesizer
An audio synthesizer is disclosed for generating an analog or digital audio output in response to coded control instructions representing musical events, such as a MIDI data stream. The synthesizer...
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5740716 |
System and method for sound synthesis using a length-modulated digital delay line
A sound synthesis system employs a variable-length delay line whose length is modulated at a frequency that is close to the fundamental frequency of the delay line. By modulating the length of the...
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5719345 |
Frequency modulation system and method for audio synthesis
An audio synthesis circuit is disclosed that incorporates a phase accumulator, adder, sinusoid computing circuit, feedback controller, modulation controller and output accumulator. The audio...
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5698805 |
Tone signal generator for producing multioperator tone signals
The present invention relates to a tone signal generator. The tone signal generator includes first tone signal generation means for producing a dual-tone, multi-frequency ("DTMF") audio signal;...
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5684260 |
Apparatus and method for generation and synthesis of audio
The method of the present invention preferably receives a predetermined number of input values or data from which it may be determined which one of a predetermined number of modulator waveforms is...
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5677504 |
Tone signal generator
A tone signal generator includes a plurality of tone generation channels, and a tone generation control data memory for storing instruction data for instructing tone generation or tone release and...
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5665929 |
Tone signal generator for producing multioperator tone signals using an operator circuit including a waveform generator, a selector and an enveloper
A frequency modulation (FM) tone signal generator for generating a FM tone signal is disclosed. The tone signal generator includes a waveform generator having a plurality of wave tables, a selector...
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5644098 |
Tone signal generator for producing multioperator tone signals
A frequency modulation (FM) tone signal generator for generating a FM tone signal is disclosed. The tone signal generator includes a waveform generator having a plurality of wave tables, a selector...
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5610354 |
Musical tone signal synthesizer
A musical tone signal synthesizer wherein a first waveform signal of a frequency defined by first frequency information is produced as a modulation signal, a second waveform signal indicative of a...
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5604323 |
Musical tone electronic synthesizer and method
A tone generator (501) for a musical synthesizer has digital waveform generators (602,603) arranged such that a proportion of an output from a waveform generator (602) is supplied to a phase...
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5559300 |
Delay time modulation effecting apparatus for processing musical tone signal
A delay-time-modulation effecting apparatus employed by an electronic musical instrument or the like, is designed to effect a certain delay-time modulation on a musical tone signal so as to realize...
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5521325 |
Device for synthesizing a musical tone employing random modulation of a wave form signal
An apparatus for synthesizing a musical tone comprises a loop circuit for circulating an input wave form signal through a delay circuit, a wave form memory, and a random modulation circuit for...
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5464947 |
Apparatus for and method of producing fluctuations in sound for electronic sound system
According to the invention, a plurality of pieces of frequency modulation information are weighted independently and then synthesized. The individual pieces of synthesized frequency modulation...
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5432294 |
Electronic bell tone generator
A microprocessor provides a pulse width modulated pulse train at a predetermined frequency to a tuned resonant circuit having a transducer element. The first pulse has a predetermined width. The...
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5432293 |
Waveform generation device capable of reading waveform memory in plural modes
Reading of a waveform memory is controlled and one of different processing is performed depending upon which of a first mode and a second mode has been designated. When the first mode has been...
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5403969 |
Electronic musical instrument of delayed feedback type
In a tone signal synthesizer for synthesizing a tone signal by supplying a driving signal, into a closed loop circuit including a delay circuit and a filter, a filter coefficient which controls the...
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5389730 |
Emphasize system for electronic musical instrument
An emphasize system for an electronic musical instrument including filter and control device. The filter extract and output predetermined frequency range component of an input musical tone signal....
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5383386 |
Tone signal generating device
An addition section and a memory section for storing data to be inputted to the addition section are provided. A processing section variably performs a logical processing on output data of the...
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5371315 |
Waveform signal generating apparatus and method for waveform editing system
The position of a connecting portion between waveforms can be arbitrarily set when a plurality of waveform data is obtained by changing pitch widths of stored external sound waveform data, when a...
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5359146 |
Musical tone synthesizing apparatus having smoothly varying tone control parameters
A musical tone synthesizing apparatus provides a time-varying signal processing circuit the transfer function of which gradually varies over time in order to gradually vary over time the tone color...
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5354948 |
Tone signal generation device for generating complex tones by combining different tone sources
Two tone sources having different tone generation systems such as an FM tone source and a PCM tone source are provided. Tone signals are generated in the two tone sources in response to tone...
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5313013 |
Tone signal synthesizer with touch control
A loop circuit including a delay element and an all-pass filter circulates a tone signal. A driving waveform is applied to the loop circuit. The delay element provides a delay time corresponding to...
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5308918 |
Signal delay circuit, FIR filter and musical tone synthesizer employing the same
The present invention provides a signal delay circuit for substantially steplessly changing a delay interval. The signal delay circuit is composed essentially of a delay controller, a first delay...
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5298676 |
Tone parameter control apparatus
A plurality of groups of tone parameters different in kind required for the generation of a musical sound is stored. The tone parameters of the same kind among those tone parameters are modulated...
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5284080 |
Tone generating apparatus utilizing preprogrammed fade-in and fade-out characteristics
A tone generating apparatus comprises a wave memory for consecutively storing first tone wave data acquired by performing pulse code modulation on a tone waveform in a first predetermined interval...
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RE34481 |
Electronic musical instrument
An electronic musical instrument includes circuitry for modifying an ordinary address signal which changes at a uniform rate over one cycle of a waveform, into a modified address signal whose rate...
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5262582 |
Musical tone generating apparatus for electronic musical instrument
The position of a connecting portion between waveforms can be arbitrarily set when a plurality of waveform data is obtained by changing pitch widths of stored external sound waveform data, when a...
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5254805 |
Electronic musical instrument capable of adding musical effect to musical tones
An electronic musical instrument has a low frequency oscillator (LFO) for generating a low-frequency signal to impart musical effect such as vibrato to musical tones, and a plurality of tone...
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5243658 |
Modulation effect adding apparatus
A modulation effect adding apparatus in which when an input signal is written into a memory and read and output with a given delay time, the delay time is changed depending on an LFO waveform to...
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5243124 |
Electronic musical instrument using FM sound generation with delayed modulation effect
A computer having one or more wave tables stored therein is used to synthesize sounds represented by a series of digital samples produced at a sample rate by specifying parameters including a...
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5218156 |
Apparatus for combining stored waveforms to synthesize musical tones
A musical tone synthesizing apparatus comprising FM operators and connection control device. At least one of the FM operators comprises a waveform memory, phase data generation device, and output...
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5206446 |
Electronic musical instrument having a plurality of tone generation modes
An electronic musical instrument has a tone generation mode selecting switch capable of selecting a tone generation mode associated with an arbitrary one of a keyboard instrument play mode, a...
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5191161 |
Electronic musical instrument including waveshape memory and modifiable address control
In this electronic musical instrument a musical tone is generated by repetitively reading out a waveshape stored in a memory. Repetitive sets of phase information are produced, such phase...
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5180877 |
Musical tone synthesizing apparatus using wave guide synthesis
A musical tone synthesizing apparatus synthesizes musical tones by simulating the tone generation construction of a plucked-string or struck-string instrument. The apparatus has a loop circuit...
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5164530 |
Electronic musical instrument with improved capability for simulating an actual musical instrument
A musical sound waveform generator includes a carrier signal generating unit, a modulation signal generating unit, a mixing controlling unit and a waveform outputting unit. The characteristics of...
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5159142 |
Electronic musical instrument with lone modification for polyphonic effect
A performance apparatus for producing a mixed musical tone signal having a comparator and a modulator. The comparator detects key data corresponding to musical tones having the same pitch and the...
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5157215 |
Electronic musical instrument for modulating musical tone signal with voice
An electrical musical instrument includes a scale designator for sequentially and automatically designating a scale on the basis of prestored data of a music piece, and a musical tone signal...
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