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6754351 Music apparatus with dynamic change of effects  
A music effector apparatus is constructed for processing a digital audio signal to produce a music sound while imparting acoustic effects to the music sound by executing microprograms...
6751322 Acoustic modeling system and method using pre-computed data structures for beam tracing and path generation  
A system and method for acoustic modeling partitions an input 3D spatial model into convex cells, and constructs a cell adjacency data structure representing the neighbor relationships between...
6721426 Speaker device  
A signal processor with a small circuit size, a simplified arrangement, and reduced cost and which can generate the same sound field as that in a case of listening to a reproduced sound using...
6686833 Compound acoustic actuator drive circuit and portable information terminal  
In a signal generation circuit for a compound acoustic actuator that generates a sound and a vibration in response to a frequency of a signal input to the compound acoustic actuator, the signal...
6665409 Methods for surround sound simulation and circuits and systems using the same  
A method of producing reverberation effects is disclosed. A filter is implemented for modeling early acoustic reflections in response to an input signal using a first processor, the filter...
6621906 Sound field generation system  
A signal of a whole audio frequency band is input to input lines CHL and CHR having band-split digital band pass filters BFL1 to BFLn and BFR1 to BFRn, attenuators ATL1 to ATLn and ATR1 to ATRn,...
6584202 Method and device for reproducing a stereophonic audiosignal  
A method and an arrangement for reproducing a stereophonic or multi-channel audio signal in a space, particularly in the passenger compartment of a motor vehicle, is described Loudspeakers for...
6580796 Sound effect imparting apparatus  
Reverberation imparting functions as are obtained by a mechanical type reverberation apparatus employing coil spring delaying elements are simulated by an electric circuit configuration. Three...
6563869 Digital signal processing circuit and audio reproducing device using it  
For a left-channel input audio signal, digital filters 30LL and 30LR are provided for reproduction of impulse responses used for locating an acoustic image outside the head of a listener, and for...
6560341 System for transcription and playback of sonic signals  
A system for enhancing sound signals at a relatively high sonic level power input and a comparatively low signal power level output which are relatively adjusted so that the signal is enhanced...
6507658 Surround sound panner  
A method and apparatus implements a novel surround sound panning paradigm. Rather than controlling the x-y position of a perceived sound source within a linear grid, the perceived sound is...
6483922 Method and system for generating a simulated reverberation audio signal  
A method and apparatus for generating a simulated reverberation characteristic in an input audio signal having a plurality of channels, each channel transmitting time-synchronized data elements....
6477255 Audio system  
A rear speaker and a front speaker are provided in a room. A microphone is disposed at a listening position between the front and rear speakers for picking up a first sound from the front speakers...
6445798 Method of generating three-dimensional sound  
To produce a three dimensional sound, an original sound recording is duplicated and the original of its duplicate are then recorded with a time delay in the range of 25 ms to 990 ms, preferably...
6437230 Effector apparatus in electronic musical instrument  
The present invention permits the parameters of at least one of the frequency characteristic adjusting circuit and the effect circuit in its DSP to be modified for providing the line-out jacks...
6418226 Method of positioning sound image with distance adjustment  
A sound apparatus is constructed for directing a sound image of a virtual sound source at a designated source point to a listener in a virtual sound field. In the sound apparatus, a database...
6385320 Surround signal processing apparatus and method  
A surround signal processing apparatus and method can realize sound image localization and have reverberation effects. In the apparatus, left and right impulse measuring sections measure left and...
6375323 Foldable eyewear with mechanism facilitating quick opening  
Eyewear which comprises a frame front and a first and second hinge coupled to the frame front. A first and second temple are pivotably coupled to the frame front through the first and second hinge...
6351540 Digital echo circuit  
An input musical sound signal is converted into a digital signal by an A/D converter (10), and then supplied to a feed back loop (22) having a digital delay circuit (16), so that an echo is...
6343131 Method and a system for processing a virtual acoustic environment  
A virtual acoustic environment comprises surfaces which reflect, absorb and transmit sound. Parametrisized filters are used to represent the surfaces, and parameters defining the transfer function...
6259793 Sound reproduction method, sound reproduction apparatus, sound data creation method, and sound data creation apparatus  
An apparatus for continuously reproducing plural sound data has a start end/terminal end determination unit for determining the start end/terminal end of the continued respective sound data, a...
6166315 Device for processing a microphone signal of a karaoke apparatus  
In accordance with a kind of effect, an effect adding section (38) adds an original microphone signal with an effect signal and outputs the added signal, or outputs an effect signal in place of...
6157724 Apparatus having loudspeakers concurrently producing music sound and reflection sound  
A music apparatus is constructed for introducing a music sound into an acoustic space, and is equipped with an acoustic feedback system for introducing a reflection sound into the acoustic space....
6118394 Circuit for obtaining an output signal having distributed frequencies around a frequency of an input signal  
In a surround circuit, an audio signal or another analog signal is converted to a digital signal by an A/D conversion circuit (11) and stored in a memory (12). Subsequently, the digital signal...
6111962 Reverberation system  
A reverberation system produces reverberant sound supposed to be generated when sound emitted from a real sound source location inside a virtual acoustic room to be simulated is reflected by...
6091824 Reduced-memory early reflection and reverberation simulator and method  
Early reflection and reverberation processing using a decimating filter simulates the high frequency attenuation of an actual physical and acoustical environment and advantageously reduces the...
6085309 Signal processing apparatus  
A signal processing apparatus executes a plurality of microprograms stored in a microprogram memory device in a time-sharing manner, so as to perform arithmetic operations on a digital signal...
6078669 Audio spatial localization apparatus and methods  
Audio spatial localization is accomplished by utilizing input parameters representing the physical and geometrical aspects of a sound source to modify a monophonic representation of the sound or...
6068489 Karaoke amplifier with variably settable range of parameter to control audio signal  
A karaoke amplifier is constructed for amplifying an audio signal to sound a karaoke performance while processing the audio signal according to a value of a control parameter to acoustically...
6064743 Wavetable audio synthesizer with waveform volume control for eliminating zipper noise  
A digital wavetable audio synthesizer is described. The synthesizer can generate up to 32 high-quality audio digital signals or voices, including delay-based effects, at either a 44.1 KHz sample...
6047073 Digital wavetable audio synthesizer with delay-based effects processing  
A digital wavetable audio synthesizer is described. The synthesizer can generate up to 32 high-quality audio digital signals or voices, including delay-based effects, at either a 44.1 KHz sample...
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...
5999630 Sound image and sound field controlling device  
On the basis of localization control data, a sound image localization controlling circuit reproduces input audio signals via a plurality of speakers after having applied predetermined...
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,...
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...
5943427 Method and apparatus for three dimensional audio spatialization  
A digital audio spatialization system that incorporates accurate synthesis of three-dimensional audio spatialization cues responsive to a desired simulated location and/or velocity of one or more...
5939656 Music sound correcting apparatus and music sound correcting method capable of achieving similar audibilities even by speaker/headphone  
A music sound correcting apparatus for correcting a music sound signal entered thereinto to selectively supply the corrected music sound signal to a speaker and a headphone, is provided with a...
5917917 Reduced-memory reverberation simulator in a sound synthesizer  
A sound or music synthesizer includes a reverberation simulator having a substantially reduced volatile storage, random access memory, or buffer size in comparison to conventional reverberation...
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...
5896456 Automatic stereophonic manipulation system and apparatus for image enhancement  
The manipulation system and apparatus receives electronic signals which are to be processed and recorded for playback as enhanced stereophonic audio signals from two laterally spaced loudspeakers...
5893067 Method and apparatus for echo data hiding in audio signals  
A method of hiding information in a host audio signal introduces one or more echoes into the signal. The separation in time between the host signal and an echo is associated with the value of a...
5880390 Reverberation effect imparting apparatus  
In a reverberation effect imparting apparatus, sampled data of an input signal is written into a RAM 23 and the data is read out after an elapse of a predetermined time period, thereby imparting a...
5876213 Karaoke apparatus detecting register of live vocal to tune harmony vocal  
A karaoke apparatus is constructed to perform a karaoke accompaniment part and a karaoke harmony part for accompanying a live vocal part. A pickup device collects a singing voice of the live vocal...
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...
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...
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...
5818944 Reverberation generating system for generating later part of reverberation from initial part of reverberation and method of generating the reverberation  
A reverberation generating system stores parameter data representative of a series of timings and a series of sound intensities for an initial part of reverberation, and calculates a series of...
5812674 Method to simulate the acoustical quality of a room and associated audio-digital processor  
A method for the simulation of the acoustical quality produced by a virtual sound source and for the localizing of this source with respect to one or more listeners, and one or more original sound...
5804751 Electronic musical instrument for electronically generating tone together with resonant sound variable in response to pedal action  
In order to change an electronic sound between a piano sound generated without manipulation of a damper pedal and a piano sound generated under manipulation of the damper pedal, an electronic...
5802180 Method and apparatus for efficient presentation of high-quality three-dimensional audio including ambient effects  
Spatialization of soundfields is accomplished by filtering audio signals using filters having unvarying frequency response characteristics and amplifying signals using amplifier gains adapted in...
Matches 151 - 200 out of 417 < 1 2 3 4 5 6 7 8 9 >