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6005949 |
Surround sound effect control device
A surround sound effect control device includes a plurality of sound signal sources each for producing a sound signal, a sound source selection signal generator for generating a sound source...
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5991385 |
Enhanced audio teleconferencing with sound field effect
An audio teleconferencing apparatus and method provide an audio sound field among a plurality of teleconferencees creating a sense of a virtual conference table having a spatial location for each...
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5982902 |
System for generating atmospheric quasi-sound for audio performance
An atmospheric quasi-sound generating system for music performance includes a reproducing device for reproducing the sound of a piece of music from a recording medium to obtain a musical sound...
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5978488 |
Simulated AM radio
A realistic illusion of listening to an actual AM radio is produced by providing a number of audio program signals and by simulating the process of tuning across the radio dial where each station...
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5978492 |
Sound source data generation method, recording medium, and sound source data processing device
Sound source data is constituted by a 14-byte sound data area SA consisting of 28 samples of 4-bit adaptive differential PCM data and a sound parameter area PA consisting of loop information LP,...
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5974154 |
Effector with integral setting of control parameters and adaptive selecting of control programs
In an echo effector for imparting an echo effect to an audio signal based on values of a plurality of parameters, a memory is provided for memorizing an interrelationship among the plurality of the...
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5946400 |
Three-dimensional sound processing system
A three-dimensional sound processing system which provides a listener with three-dimensional sound effects by reproducing a sound image properly positioned in a reproduced sound field. A filter...
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5932826 |
Effect adder circuit with a coefficient smoothing circuit for an electronic musical instrument
An electronic musical instrument has an effect adder circuit for adding sound effect which is controlled by coefficients for filtering operations and amplitude control. The instrument also has a...
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5930373 |
Method and system for enhancing quality of sound signal
An apparatus for conveying to a listener a pseudo low frequency psycho-acoustic sensation (Pseudo-LFPS) of a sound signal, including: frequency unit capable of deriving from the sound signal high...
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5926554 |
Pickup amplifier system for public address system
A pickup amplifier system for a public address system including an amplifier, an amplifier box and a speaker simulator microphone wired between amplifier and amplifier box. The amplifier system is...
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5896291 |
Computer system and method for implementing delay-based effects using system memory
A system and method is provided for performing sound synthesis with delay-based special effects which may be algorithmically implemented using one or more time-delay elements The system implements...
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5884264 |
Identifying mechanical damage using sound samples
An arrangement and method for identifying mechanical damage in a mechanism having a multiplicity of different sections which generate different actual sounds due to damage in each section, uses a...
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5881157 |
Apparatus for compensating a frequency characteristic of a reproduction audio signal
An apparatus for compensating a frequency characteristic of a reproduction audio signal removes noise from the reproduction signal in the high-frequency region during reproduction of the audio...
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5872727 |
Pitch shift method with conserved timbre
An improved method for shifting the pitches of a tone is disclosed. It comprises: (a) subjecting a digitized original waveform to a whitening process using an all-zero filter (AZF) to obtain a...
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5867580 |
Flexibility digital sound relaxation system
In one embodiment, an improved-customizability digital sound relaxation system having a sound card receiving port and a collectable sound card are cooperative to play prerecorded natural or other...
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5862231 |
DSP programming apparatus and DSP device
A DSP programming apparatus capable not only of reducing work load for software engineers at the time of doing DSP programming but also of modularizing commonly usable algorithms, as well as to...
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5862228 |
Audio matrix encoding
A surround sound encoder, intended for implementation in software, runs in real time on a personal computer using low mips and a small fraction of available CPU cycles. In the principal application...
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5862233 |
Wideband assisted reverberation system
A wideband assisted reverberation system has multiple microphones (M1-M3) to pick up reverberant sound in a room, multiple loudspeakers (L1-L3) to broadcast sound into the room, and a reverberation...
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5862232 |
Sound pitch converting apparatus
A sound pitch converting apparatus for shifting a pitch of a sound signal, the apparatus utilizes a first windowing device for dividing the sound signal into a series of multiple frames and shaping...
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5857856 |
Apparatus and system for generating sound based upon waveform data and system-sequence data
A sound producing apparatus which implements a sound output process based on waveform data, corresponding to sound generated by the apparatus, and system-sequence data including information for...
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5848164 |
System and method for effects processing on audio subband data
An audio effects processing system and method performs audio effects processing on a subband-by-subband basis using less memory and computational resources than audio effects produced through post...
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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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5841875 |
Digital audio signal processor with harmonics modification
The audio signal processor has a harmonics modifier for processing an input audio signal to produce an output audio signal. The harmonics modifier is comprised of translating means for sequentially...
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5841993 |
Surround sound system for personal computer for interfacing surround sound with personal computer
A surround sound system for personal computer includes a control card and a PC surround decoder. The control card is a PC interface card for interfacing to the personal computer and draining the 5...
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5835605 |
Engine exhaust sound synthesizer
An engine exhaust sound synthesizer is fundamentally configured by an exhaust waveform creating unit and an exhaust pipe circuit. The exhaust waveform creating unit creates an exhaust waveform...
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5828763 |
Speaker system including phase shift such that the composite sound wave decreases on the principal speaker axis
A speaker system for reproducing a high fidelity sound field. In one embodiment, the speaker system includes at least two speakers, one of which is coupled with a phase shifter for shifting the...
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5828755 |
Method and device for processing signals
A method is set forth for processing signals, in particular for treating audio signal, characterized in that it mainly consists in the supply of an input signal (3) to be treated; in the isolation...
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5820442 |
Super sound engine/transmission sound enhancer
The present invention relates to an electronic engine sound duplicator simulator used in combination with an internal combustion motor, a battery, and an alternator. The sound duplicator simulator...
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5812677 |
Acoustic signal processing method and apparatus
Main voice processing is performed on an acoustic signal at a basic sampling frequency fs within one period of the basic sampling frequency fs to allow the main voice processing implemented...
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5812772 |
Multi-media communication system and method therefor
A multi-media communication system has a data transmitter and communication terminals. Each communication terminal has a communication interface for communicating with the data transmitter via...
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5812688 |
Method and apparatus for using visual images to mix sound
A method and apparatus for mixing audio signals. Each audio signal is digitized and then transformed into a predefined visual image, which is displayed in a three-dimensional space. Selected audio...
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5805713 |
Solid state circuit for emulating push-pull tube amplifier
A solid state emulation of vacuum tube amplifiers and more particularly to the emulation of push-pull output stages. This application focuses on the emulation of grid conduction by the output tubes...
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5802182 |
Audio process distortion
The audio process is a signal path having a plurality of filters connected or including distortion means. The prime example of this phenomenon surrounds inductances such as found in magnetic tape...
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5783766 |
Musical sound producing device in electronic musical instrument
A musical sound producing device in an electronic musical instrument of stereophonic sampling system, including: an oscillator using status memory for storing each order of right and left...
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5771296 |
Audio circuit
An audio circuit for use in a television receiver and the like compensates for the capacity shortage of a speaker box or low frequency characteristic of the speaker to reproduce vivid and...
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5768396 |
Online karaoke system with flying start performance
A karaoke system of an online type is comprised of a karaoke station for sounding a karaoke performance according to a performance data, and a host station for supplying the performance data to the...
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5765134 |
Method to electronically alter a speaker's emotional state and improve the performance of public speaking
The invention addresses the problem of undesirble emotional states in general, and during the performance of public speaking in particular. The user of the invention wears a microphone and...
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5761317 |
Tube amplifier fat emulation structure
This disclosure shows the solid state emulation of elements of a thermionic emission device amplifier which distinguish it from solid state amplifiers: the output impedance of transformer impedance...
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5761316 |
Variable and reactive audio power amplifier
This disclosure shows the solid state emulation of elements of a thermionic emission device amplifier which distinguish it from solid state amplifiers: the output impedance of transformer impedance...
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5757931 |
Signal processing apparatus and acoustic reproducing apparatus
A signal input at an input terminal (1) is divided into signals of two systems, and the signal of one system is supplied to a low-pass filter (2) and then fed to a downsampling processor (3). The...
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5754666 |
Method for reproducing audio signals and an apparatus therefore
When reproducing an audio signal with a conventional audio signal reproducing system, an unnaturalness in the quality of the reproduced sound occurs. The unnaturalness is caused by the frequency...
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5750914 |
Electronic musical instrument having an effect data converting function
Effect data designating a desired sound effect is introduced from the outside, and a tone generator generates a tone imparted with an effect based on the introduced effect data. A conversion table...
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5748747 |
Digital signal processor for adding harmonic content to digital audio signal
A digital audio signal processor for adding harmonic content to an input audio signal through a non-linear transfer function with discontinuities. The discontinuities are generated by bit shifting...
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5748756 |
Entertainment system with sound storage cartridge and playback device
An entertainment system includes a cartridge provided with read-only memory (ROM) for storing digital data therein in accordance with predetermined addresses, and a player device structured to...
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5742688 |
Sound field controller and control method
A sound field controller of the invention reproduces a sound field which provides a distance perspective depending on a position of a sound image for a listener. The sound field controller...
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5734726 |
Device and method for controlling digitally-stored sounds to provide smooth acceleration and deceleration effects
A device and method for producing sound which simulates the sound of an engine, whereby sound segments are digitally stored in memory and accessed by a microcontroller which is responsive to a user...
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5734725 |
Tube emulator amplifier system
This invention is an emulation of vacuum tube guitar amplifier with devices that emulate vacuum tube plate voltage and current characteristics. This amplifier system has a switching system for...
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5727069 |
Solid state musical instrument amplifier with vacuum tube signal magnitude limiting
A musical instrument amplifier has all solid state amplification stages but incorporates a pair of vacuum tube signal magnitude limiters to provide vacuum tube type sound when the amplifier is...
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5719944 |
System and method for creating a doppler effect
System and method for creating a Doppler Effect signal in a virtual reality environment. A host produces: (1) an audio signal indicative of sound produced by a sound source, (2) a first set of...
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5705950 |
Hybrid solid state/vacuum tube audio amplifier
In this hybrid amplifier circuit the vacuum tube is direct coupled or DC coupled to the output of a solid state amplifier in a cathode follower configuration. An automatically operative bypass...
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