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| Number | Title | Issue Date |
| 7511216 | Shaping amplitude contours of musical notes Methods and apparatus, including computer program products, for shaping amplitude contours of musical notes. A method for shaping amplitude contours of musical notes in time of particular pitch and duration includes processing musical notes to modify a contour of an... | 03/31/2009 |
| 7381881 | Simulation of string vibration A method of simulating a string using a wave equation relates movement of the string in time to force acting on the string, wherein the force acting on the string simulates a stream of a fluid medium flowing relative to the string. The simulated string is supported ... | 06/03/2008 |
| 7259315 | Waveform production method and apparatus Performance event data designating rendition style modules are supplied in order of time. When a given performance event data at a given time is to be processed in accordance with the supplied performance event data, another performance event data related to one or ... | 08/21/2007 |
| 7248702 | Sound enhancement system A system for enhancing sound quality comprising a filter that square roots the instantaneous amplitude of frequencies in an input signal for generating artificial harmonics corresponding to said frequencies. The system can comprise an automatic level control that mo... | 07/24/2007 |
| 7242784 | Dynamic gain control of audio in a communication device A method for dynamically controlling audio signal gain in a communication device starts with determining a level of an input audio signal. The level is then mapped against a table of predetermined corresponding gain targets to determine an appropriate gain target fo... | 07/10/2007 |
| 7060889 | Strap amplifier An apparatus for amplifying the sound of a stringed instrument includes, in its most basic form, a speaker attached to a strap that is adapted to be draped around a musician with each end thereof detachably-attachable to the stringed instrument. An amplifier circuit... | 06/13/2006 |
| 6931124 | Soft mute circuit A soft mute circuit includes a programmable amplifier controlled by a register. Data is stored in the register from an adder that combines the current data in the register with a second number for increasing or decreasing the gain of the amplifier. A summation circu... | 08/16/2005 |
| 6281421 | Remix apparatus and method for generating new musical tone pattern data by combining a plurality of divided musical tone piece data, and storage medium storing a program for implementing the method A remix apparatus and a remix method are provided, which can generate new musical tone pattern data with new tempo and groove while partly maintaining the tempo and groove of the original musical tone pattern data. Musical tone pattern data having a first... | 08/28/2001 |
| 6148086 | Method and apparatus for replacing a voice with an original lead singer's voice on a karaoke machine A voice replacing method and system that uses the volume of the karaoke user's voice to control the volume of the lead singer's original vocal outputted to the audience. The volume of an original lead singer's voice is determined by the volume or vocal-am... | 11/14/2000 |
| 6111183 | Audio signal synthesis system based on probabilistic estimation of time-varying spectra The present invention describes methods and means for estimating the time-varying spectrum of an audio signal based on a conditional probability density function (PDF) of spectral coding vectors conditioned on pitch and loudness values. Using this PDF a t... | 08/29/2000 |
| 6091013 | Attack transient detection for a musical instrument signal An attack transient detector determines the moment of note onset; e.g. the time at which a guitar string is plucked; from a signal generated by a musical instrument. Detection of the attack transient causes the generation of a trigger signal which can be ... | 07/18/2000 |
| 6091012 | Tone effect imparting apparatus There are provided a tone source for generating tone signals in plural channels independently and effect impartment sections, provided in corresponding relations to the channels, for imparting individual effects to the tone signals of the channels generat... | 07/18/2000 |
| 6069309 | Data compression of sound data A data compression method and apparatus for the compression of sound data utilized in digital sampling keyboard instructs. The present invention reduces memory requirements for sampled sounds without compromising sound quality, using three techniques. The... | 05/30/2000 |
| 6011213 | Synthesis of sounds played on plucked string instruments, using computers and synthesizers A sound synthesizer for a plucked string instrument simulates noises and transients produced before and after and during the transitions between notes. A particularly convincing synthesis of a plucked string instrument is produced by combining the transie... | 01/04/2000 |
| 5998726 | Musical sound generating system with controlled tone A musical sound generating system which generates musical sounds having desired tone regardless of the variation of volume setting. In the musical sound generating system, the standard tone control touch curve TCstd, the maximum tone control touch curve T... | 12/07/1999 |
| 5977469 | Real-time waveform substituting sound engine A sound engine in a processor-based system utilizing real-time synthesis optimizes synthesis time, maximizes the number of fully-synthesized sound requests and preserves currently excessive sound requests. During synthesis, the sound engine attempts to fu... | 11/02/1999 |
| 5945621 | Musical tone control apparatus with envelope processing In a musical tone control apparatus, musical tones to be generated are controlled according to musical tone control parameters which include an envelope that has been extracted and processed. The range of variation of the extracted envelope may be limited... | 08/31/1999 |
| 5942709 | Audio processor detecting pitch and envelope of acoustic signal adaptively to frequency An audio apparatus extracts information of a musical performance from an acoustic signal having a frequency and an amplitude, which time-vary during the musical performance. In the audio apparatus, a filtering device has a plurality of filters which are s... | 08/24/1999 |
| 5942707 | Tone generation method with envelope computation separate from waveform synthesis An electronic musical apparatus utilizes a central processing unit for working a player module, driver module, sound source module and timing module, while controlling a work load of the central processing unit. The player module provides a sequence of ev... | 08/24/1999 |
| 5925842 | Electronic music tone generator with power saving control A waveform generator LSI generates waveform data in units of time slots corresponding to tone generation channels in accordance with tone control data assigned to the individual channels, and accumulates waveform data for the individual channels to form a... | 07/20/1999 |
| 5911170 | Synthesis of acoustic waveforms based on parametric modeling A method is disclosed for synthesizing acoustic waveforms, especially musical instrument sounds. The acoustic waveforms are characterized by time-varying amplitudes, frequencies and phases of sinusoidal components. These time-varying parameters, at each a... | 06/08/1999 |
| 5900570 | Method and apparatus for synthesizing musical sounds by frequency modulation using a filter This invention provides a circuit for synthesizing musical sounds. In one embodiment, the circuit includes a first order FIR highpass filter that is placed between a modulation phase increment oscillator and a carrier phase increment oscillator. The inven... | 05/04/1999 |
| 5895879 | Musical tone-generating method and apparatus capable of approximating envelope characteristic of a waveform of a musical tone by a polygonal line A musical tone waveform sample is generated at each sampling time by the use of a processing unit carrying out an arithmetic operation every repetition period that is longer than the sampling time. An envelope characteristic of a waveform of a musical ton... | 04/20/1999 |
| 5877446 | Data compression of sound data A data compression method and apparatus for the compression of sound data utilized in digital sampling keyboard instruments. The present invention reduces memory requirements for sampled sounds without compromising sound quality, utilizing processing of s... | 03/02/1999 |
| 5831194 | Electronic keyboard musical instrument capable of imparting effect similar to that of soft pedal An electronic keyboard musical instrument is responsive to a step-on of a soft pedal so as to impart effects similar to those of a soft pedal of an acoustic piano to an electronic sound; a tone generator incorporated in the electronic keyboard musical ins... | 11/03/1998 |
| 5824936 | Apparatus and method for approximating an exponential decay in a sound synthesizer A linear approximation to an exponential decay function exploits the characteristic of an exponential function that, at equal time intervals, the ratio of a parameter value at the beginning of the interval to the parameter value at the end of the interval... | 10/20/1998 |
| 5786541 | Musical tone synthesizing apparatus A musical tone synthesizing apparatus is used to synthesize musical-tone waveforms on the basis of simulation of a tone-generation mechanism of a musical instrument. Herein, a drive signal is generated based on an excitation envelope signal in accordance ... | 07/28/1998 |
| 5714704 | Musical tone-generating method and apparatus and waveform-storing method and apparatus A method of generating musical tones is provided. Data indicative of waveforms including at least a first predetermined waveform and a second predetermined waveform are stored in a first storage device such as a RAM. Data indicative of the first predeterm... | 02/03/1998 |
| 5710387 | Method for recognition of the start of a note in the case of percussion or plucked musical instruments A method is specified for recognition of the start of a note in the case of percussion or plucked musical instruments, in the case of which an envelope curve following function is formed from an audio signal, a comparison variable is formed from a current... | 01/20/1998 |
| 5633474 | Sound effects control system for musical instruments A sound effects control system for musical instruments comprises a tactile controller and a control box. The controller generates, by means of manual or other bodily manipulation, a control signal which is communicated to the control box. The control box ... | 05/27/1997 |
| 5610353 | Electronic musical instrument capable of legato performance An electronic musical instrument has a waveform memory, a CPU, a tone generator and a keyboard. The waveform memory stores a plurality of waveforms corresponding to musical parameters such as tone colors. The CPU controls the tone generator to generate mu... | 03/11/1997 |
| 5581045 | Method and integrated circuit for the flexible combination of four operators in sound synthesis A four-operator sound synthesis integrated circuit comprises a first through a fourth sound synthesis operator, a first programmable multiplier connecting the output of the first operator to the input of the second operator, a second programmable multipli... | 12/03/1996 |
| 5576685 | Sound generation apparatus responsive to environmental conditions for use in a public space A sound generation device used in a public space generates tone data corresponding to a change in environment such as environmental noise, temperature, brightness, and the like. The sound generation device includes a detector for detecting environmental n... | 11/19/1996 |
| 5559301 | Touchscreen interface having pop-up variable adjustment displays for controllers and audio processing systems A touchscreen interface for a sound processing system, such as music synthesizers, which has a display panel and a touch sensitive panel overlying the display panel, includes an icon which represents an adjustable parameter used by the processing system. ... | 09/24/1996 |
| 5519167 | Musical tone synthesizing apparatus In a musical tone synthesizing apparatus, employed by an electronic musical instrument, an excitation signal circulates through a waveguide to form a musical tone signal corresponding to a synthesized musical tone. The waveguide is configured by a loop ci... | 05/21/1996 |
| 5516981 | Musical instrument tuned in nineteen note temperament scale A musical instrument produces nineteen tones in each octave, and the nineteen tones have respective fundamental frequencies regulated to a geometrical series of 19 Ýa;2 so as to be highly harmonized without difficult in performance.... | 05/14/1996 |
| 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 information are weighted independently, and individual pieces ... | 11/07/1995 |
| 5428185 | Musical tone synthesizing apparatus A musical tone synthesizing apparatus synthesizes musical tones by simulating the tone generation construction of an acoustic musical instrument. The acoustic musical instrument comprises of a tone generating element and a tone generating operator for exc... | 06/27/1995 |
| 5412155 | Envelope generator for electronic musical instrument An envelope generator for an electronic musical instrument, in which a current value of the envelope approaching asymptotically to a target level, using a subtracter means for subtracting from data representing the target level in a floating point represe... | 05/02/1995 |
| 5408042 | Musical tone synthesizing apparatus capable of convoluting a noise signal in response to an excitation signal When playing a wind instrument such as a clarinet, noises are inevitably or intentionally generated under effect of a turbulent flow contained in an air-pressure wave propagated through a resonance tube of the wind instrument. In response to an accurate s... | 04/18/1995 |
