Matches 201 - 250 out of 417 < 1 2 3 4 5 6 7 8 9 >


Match Document Document Title
5796845 Sound field and sound image control apparatus and method  
The apparatus of the invention calculates filter coefficients for controlling sound field and sound image, based on a plurality of first impulse response signals and a pair of second impulse...
5784467 Method and apparatus for reproducing three-dimensional virtual space sound  
In the method and apparatus for obtaining acoustic characteristics of sound of a broad frequency range of from, for example, 0 to 20 KHz in a relatively short time with high accuracy even though...
5774560 Digital acoustic reverberation filter network  
A reverberation network for processing an audio signal including a plurality of wave-ladder filters, each of which simulates a corresponding reflected audio signal from wave propagation in a...
5771294 Acoustic image localization apparatus for distributing tone color groups throughout sound field  
An acoustic image localization apparatus localizes an acoustic image of a plurality of tone color species having various timbres to a source point with respect to a listening point within a sound...
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...
5768394 Surround audio signal reproducing apparatus having a sub-woofer signal mixing function  
A surround audio signal reproducing apparatus for reproducing a multi-channel audio signal to generate a surround sound effect is provided. The apparatus contains a surround decoder, a sub-woofer...
5761313 Circuit for improving the stereo image separation of a stereo signal  
By using special frequency response manipulation in the difference channel of a stereo signal, the stereo image will appear to extend beyond the actual placement of the loudspeakers. This is...
5761295 Telephone instrument and method for altering audible characteristics  
A telephone instrument creates spatially simulated sound signals from signals received from a telephone line. The monaural signals are separated to two left and right channels. In each channel,...
5740253 Sterophonic sound field expansion device  
A stereophonic sound field generation device includes a left side localized reflected sound generation circuit which generates a left channel reflected sound signal and a left channel cancel...
5739452 Karaoke apparatus imparting different effects to vocal and chorus sounds  
A karaoke apparatus is provided with a pickup device that collects a singing voice sound to convert the same into a corresponding vocal signal. Further, a music generator device generates a music...
5732142 Musical sound reproduction controller with two-stage adjustment of tone  
A sound reproduction control apparatus processes an audio signal in reproduction of a musical sound to control a tone of the musical sound while imparting an effect to the musical sound. A...
5729613 Reverberators for use in wide band assisted reverberation systems  
A multi-channel reverberation system has a substantially constant multi-channel power gain at audio frequencies and comprises multiple signal inputs, one for each input channel, a number of comb...
5727066 Sound Reproduction systems  
A stereophonic sound reproduction system is aimed at synthesizing at a multiplicity of points (L) in the listening space. An auditory effect obtaining at corresponding points (K) in the recording...
5727067 Sound field control device  
A sound field control device includes a surround decoder for decoding an input surround encode signal and generating three channel signals of L, C and R to be reproduced in front left, front...
5724429 System and method for enhancing the spatial effect of sound produced by a sound system  
System and method for enhancing the spatial effect of sound produced by a sound system. In an exemplary embodiment, the system includes a reverberator and a sound spatialization unit, which are a...
5703312 Electronic musical instrument and signal processor having a tonal effect imparting function  
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...
5703956 External memory control circuit for sound field processing digital signal processor  
An external memory control circuit for a sound field processing digital signal processor capable of obtaining continuous sound listening by shortening the time that sound is cut off upon a change...
5689571 Device for producing reverberation sound  
Early reflection sounds and subsequent reverberation sounds are processed in different modes by separate processing devices in order to obtain reverberation effects close to those of natural sound...
5687240 Method and apparatus for processing discontinuities in digital sound signals caused by pitch control  
Small discontinuities in digital sound data caused by a pitch control operation are processed by using a secondary FIR filter and smoothing the discontinuities. When lowering the key, the data...
5680464 Sound field controlling device  
An AC-3 decoder output signals of five channels, i.e., main signals of left front, center front and right front channels and surround signals of two channels. A first synthesizing section...
5675656 Power amplifier with clipping level control  
In a power amplifier, a control device employing a dual ganged potentiometer is connected in the feedback circuits of successive amplifier stages to increase the gain of the front end stage while...
5657391 Sound image enhancement apparatus  
A sound image enhancement apparatus for reproducing two-channel stereo signals with speakers, includes for each channel a first phase shifter and a second phase shifter for introducing different...
5652798 Reverberant characteristic signal generation apparatus  
This reverberant characteristic signal generation apparatus comprises a measuring room where a speaker and one channel of microphone is provided to supply one channel of a pulse train indicative...
5642425 Sound field control device  
A sound field control device includes an acoustic feedback signal path including a chamber and one or more loudspeaker or loudspeakers and one or more microphone or microphones provided in the...
5636283 Processing audio signals  
A system for mixing five channel sound which surrounds an audio plane. The position of a sound source is displayed on a VDU (16) relative to the position of a notional listener (31). The sound...
5621801 Reverberation effect imparting system  
A reverberation effect imparting system includes plural comb filters, each of which has a signal delay line and a feedback loop for filtering a delayed output signal from the delay line and...
5619579 Reverberation imparting apparatus  
A reverberation imparting apparatus comprises at least a data shift register, a coefficient shift register and an arithmetic convolution unit. The data shift register stores a string of sampling...
5617478 Sound reproduction system and a sound reproduction method  
A sound reproduction system for automatically conducting a tone control for an audio signal according to the present invention includes: an input terminal for inputting an audio signal; a judgment...
5613147 Signal processor having a delay ram for generating sound effects  
A signal processor executes a plurality of microprograms to perform delaying processing and various arithmetic computation processings of digital signals input thereto. The signal processor has a...
5604809 Sound field control system  
First and second processing circuits are provided for carrying out a reverberation process of an input signal, and first and second filters are provided for applying amplitude characteristics to...
5604810 Sound field control system for a multi-speaker system  
A plurality of reverberation signal generating circuits are provided for generating a plurality of reverberation signals from input audio signals of two channels. Each of the reverberation signals...
5572591 Sound field controller  
According the present invention, a sound field controller for reproducing a sound field with presence comprising; input terminals for inputting an audio signal having a first and a second channel...
5559891 Device to be used for changing the acoustic properties of a room  
The invention relates to a device to be used for changing the acoustic properties of a room, comprising a pressure transducer (1), a loudspeaker (2) and an electronic control circuit (3) adapted...
5555306 Audio signal processor providing simulated source distance control  
An audio signal processing system produces an output 24 having an illusory distance effect for a sound source signal S by feeding it via a direct signal path 25 and an indirect signal path 22, 23...
5553150 Reverberation - imparting device capable of modulating an input signal by random numbers  
A reverberation-imparting device includes a delay line for storing a signal to which a reverberation effect is to be imparted. The delay line has at least one reading location determining timing...
5546465 Audio playback apparatus and method  
An audio playback apparatus and method are disclosed which includes a Dolby pro-logic decoder for converting a digital audio signal into a left signal, a right signal, a center signal, and a...
5546466 Effect adding apparatus  
When a plurality of effects are simultaneously applied to an input audio signal, a plurality of effect-algorithms each for applying solely an effect to the input signal are stored in a memory, and...
5544249 Method of simulating a room and/or sound impression  
A method of simulating a room impression and/or sound impression occurring at a representative listening location in a room with monophonic, stereophonic or multichannel reproduction includes...
5530762 Real-time digital audio reverberation system  
A software reverberator system produces a sequence of "reverberated" samples from an input digital word sequence where each word in the input sequence comprises a digitized sample of an original...
5526431 Sound effect-creating device for creating ensemble effect  
A sound effect-creating device frequency-modulates a monaural original sound signal obtained from stereophonic sound signals, delays the resulting modulated signal by delay amounts different from...
5491754 Method and system for artificial spatialisation of digital audio signals  
A method and a system for artificial spatialization of audio-digital signals x(k) making it possible to effect on elementary signals xi(k), replicas of the audio-digital signal, different delays...
5473697 Echo generating apparatus  
An echo generating apparatus includes an echo effect generator for producing reverberative echo effect by delaying an input audio signal; a band limit filter for limiting the frequency band of the...
5469508 Audio signal processor  
An audio signal processor capable of both sampling and audio processing external audio signals is disclosed. The audio signal processor can sample an audio signal and store it in a fixed store in...
5467401 Sound environment simulator using a computer simulation and a method of analyzing a sound space  
The present invention discloses a sound environment simulator including a sound field analyzing unit, a sound field reproducing unit, and an output unit. The sound environment analyzing unit...
5452360 Sound field control device and method for controlling a sound field  
A sound field control device for simulating a sound field of a small space such as a concert hall in a large space such as an open outdoor space and a large indoor space comprises loudspeakers for...
5451712 Positional effect sound generation apparatus for electronic musical instrument  
A positional effect sound generation apparatus for an electronic musical instrument includes a function selector for selecting a function according to a user's selection, a note sensing circuit...
5444785 Echo attaching circuit and audio device using the same  
An analog signal to be delayed thereby is compressed according to a monotonously increasing, convex compression function and sent to a delay circuit constituted digitally. Data of a digital value...
5444180 Sound effect-creating device  
A sound effect-creating device amplitude-modulates a monaural original sound signal obtained from stereophonic sound signals, delays the resulting modulated signal by delay amounts different from...
5444784 Acoustic signal processing unit  
A sound echo machine as an acoustic signal processing unit of the present invention comprising an adder to which an input signal is fed, and a delay circuit for delaying the signal fed from the...
5440639 Sound localization control apparatus  
A sound localization control apparatus is used to localize the sounds, which can be produced from a synthesizer and the like, at a target sound-image location. The target sound-image location is...

Matches 201 - 250 out of 417 < 1 2 3 4 5 6 7 8 9 >