Matches 301 - 350 out of 417 < 1 2 3 4 5 6 7 8 9 >


Match Document Document Title
5027689 Musical tone generating apparatus  
A musical tone generating apparatus includes a position information generating device to generate musical instrument position information (PS) as plane coordinates values. This information (PS) is...
5025472 Reverberation imparting device  
A reverberation imparting device for electro-acoustically enhancing reverberation in acoustic space comprises a microphone disposed in the acoustic space, a loudspeaker disposed in the acoustic...
5023913 Apparatus for changing a sound field  
An apparatus for changing a sound field, comprising at least two signal processing means, which can smoothly and continuously switch a sound field into an arbitrary sound field without a break of...
5000074 Effect imparting device for an electronic musical instrument or the like apparatus  
A variable delay circuit for delaying an input signal and being capable of changing length of this delay is provided and various modulation effects are imparted by this delay. When change in the...
4998281 Effect addition apparatus  
Each time sampling clock CK is input, a controller controls respective circuits, and performs various arithmetic operations of data stored in tone color parameter memories, and time-divisionally...
4984276 Digital signal processing using waveguide networks  
Disclosed is a signal processor formed using digital waveguide networks. The digital waveguide networks have signal scattering junctions. A junction connects two waveguide sections together or...
4980914 Sound field correction system  
A sound field correcting system for correcting for mulitpath frequency-characteristic distortion in an acoustic reproducing system. In one embodiment, the level and delay of an original signal are...
4955057 Reverb generator  
A reverb generator comprises a delay circuit for delaying an input audio signal, a feed back path connecting an output port of the delay circuit to its input port, and a phase shifter connected in...
4953219 Stereo signal reproducing system using reverb unit  
A system for reproducing stereophonic sound signals to create an appropriate audio sound ambience in various compartments having different reverberation characteristics. The system includes a...
4947723 Tone signal generation device having a tone sampling function  
A tone signal applied from outside is sampled by a tone sampling device and the sampled waveshape data is written into a memory. During this writing operation and in parallel with the writing...
4937875 Audio signal processing apparatus  
An audio signal processing apparatus for digitally processing input audio signals according to the contents of a program for creating a given sound field. A basic program for creating a specific...
4873722 Multi-channel reproducing system  
A multi-channel reproducing system comprises main speakers for sounding an input audio signal as a main channel audio signal, a phase shifter supplied with the input audio signal for shifting a...
4817149 Three-dimensional auditory display apparatus and method utilizing enhanced bionic emulation of human binaural sound localization  
An artificial, three dimensional auditory display which artificially imparts localization cues to a multifrequency component electronic signal which corresponds to a sound source. The cues...
4803731 Reverbation imparting device  
A reverberation imparting device comprises a delay memory storing input signal data at a predetermined sampling period and producing a delay signal corresponding to time interval between writing...
4778027 Rhythmizer  
A reverberating platform structure usable as an exercise floor or, depending upon the configuration thereof, for the support of people or objects thereon wherein the platform is supported by an...
4731835 Reverberation tone generating apparatus  
In a reverberation tone generating apparatus a digital memory device is used as a delay element. Amplitude data obtained by sampling an input musical tone at a predetermined period are...
4731848 Spatial reverberator  
A method and apparatus for processing audio signals utilizing reverberation in combination with directional cues to capture both the temporal and spatial dimensions of a three-dimensional natural...
4727581 Method and apparatus for increasing perceived reverberant field diffusion  
A method and apparatus for increasing perceived reverberant field diffusion in systems providing electro-acoustic reverberant enhancement to rooms or spaces includes independent modulation of the...
4706287 Stereo generator  
An improved system is disclosed for generating a signal encoded with stereophonic information and adapted to be used with a monophonic signal to synthesize stereophonic reproduction. The system...
4706291 Reverberation imparting device  
A reverberation imparting device comprises a prememory storing an input signal, a level detection circuit responsive to data stored in the prememory for detecting presence or absence of the input...
4694497 Automotive multi-speaker audio system with automatic echo-control feature  
An automotive audio system separates audio signals from an audio signal source into first and second components. The first component of the audio signal is sent directly to a first main amplifier...
4672671 Audio frequency signal preamplifier for providing controlled output signals  
A preamplifier adapted to receive audio frequency electrical signals generated by a musical instrument for providing controlled output signals therefrom having selected distortion and harmonic...
4653096 Device for forming a simulated stereophonic sound field  
A device for forming a stereophonic sound field in a simulated fashion constructed in the form of a monophonic-to-stereophonic conversion circuit in which a monophonic signal is applied to...
4649564 Acoustic systems  
An acoustic system comprising an input transducer connected by a first severable path to the input of reverberation means for producing reverberation of the required decay rate of the sound field...
4638506 Sound field simulation system and method for calibrating same  
The present invention relates to a system for generating within a relatively small enclosed space a sound field corresponding to that in a relatively large enclosed space having specific acoustic...
4628789 Tone effect imparting device  
Tone signals from plural keyboard systems are supplied to an effect imparting circuit via a distribution circuit. The effect imparting circuit comprises plural effect imparting channels and the...
4630301 Voice activated echo generator  
A voice activated echo generator employs digital voice recording technology to digitize several spoken words of audio using low-cost encoding techniques. The audio information is stored in dynamic...
4625326 Apparatus for generating a pseudo-stereo signal  
An apparatus for generating a pseudo-stereo signal comprises at least two signal channels (3, 4), each signal channel (3) comprising a delay line (7) of which an output is fed back to the input...
4611300 Digital delay line  
A digital delay system employs a phase-locked loop to control a recall address generator. The phase-locked loop comprises a subtractor for determining the difference between the store address and...
4589128 Process for the production of a sound recording and a device for carrying out the process  
A process for the reproduction of a sound recording using headphones as the reproduction device, comprising connecting between the sound carrier and the reproduction device a reverberation...
4586417 Electronic musical instruments provided with reverberation tone generating apparatus  
In an electronic musical instrument, a reverberation tone most suitable for a selected tone color is applied to a musical tone with the selected tone color. In a modification, the electronic...
4584701 Reverberator having tapped and recirculating delay lines  
A reverberator comprises a tapped delay line (2, 3, 4, 5, 10) connected to an analog audio signal source (1) for deriving therefrom at least one pair of output signals which are respectively...
4581759 Signal delaying device  
A signal delaying device delays a digital signal corresponding to an audio signal. Input signal data is sequentially written into a memory with regularity and data at an address which was written...
4569268 Modulation effect device for use in electronic musical instrument  
A modulation effect device for use in an electronic musical instrument which utilizes, as a digital modulation circuit, a digital memory device for storing digitized musical tone signals. The...
4509191 Electronic stereo reverberation device  
A stereo or two channel electronic reverberation device is disclosed comprising an analog delay device which receives audio signals and provides delayed output signals at a plurality of outputs,...
4489439 Electronic stereo reverberation device with doubler  
A stereo or two channel electronic reverberation device is disclosed comprising an analog delay device which receives audio signals and provides delayed output signals at a plurality of outputs,...
4475229 Device for producing artifical reverberation  
In a device for producing artificial reverberation by means of a one-dimensional waveguide, a one-dimensional waveguide is utilized, which is obtained using digital circuits which contain at least...
4472993 Sound effect imparting device for an electronic musical instrument  
A sound effect imparting device for an electronic musical instrument is capable of imparting a plurality of desired sound effect such as vibrato and reverberation effects to a digital musical tone...
4472834 Loudspeaker system  
A plurality of delay circuits each having a different delay time are inserted between an audio signal source and each speaker in a multiple-speaker system so that the frequency dependence of...
4449234 Reverberation apparatus  
A reverberation apparatus includes a signal input terminal to be supplied with an input signal, an operational amplifier having an inverted input terminal, a non-inverted input terminal, and an...
4404427 Audio signal processing system  
An improved audio signal processing system for use in an audio reproduction apparatus is described. The apparatus is of the type for generating ambient effects and includes at least two channels...
4389915 Musical instrument including electronic sound reverberation  
An electronic reverberation system for use in an electronic musical instrument comprises a random access memory wherein two or more time delay channels are defined by address allocation in a...
4371748 Device for artificial reverberation  
An artificial reverberation device comprising first, second, third and fourth delay lines and first and second adder circuits with at least a part of said first, second, third and fourth delay...
4366346 Artificial reverberation apparatus  
Artificial reverberation apparatus comprising a delay device (1) provided with a feedback circuit (5) and a feed-forward circuit (6) having a gain equal and opposite to that of the feedback...
4361727 Sound reproducing arrangement for artificial reverberation  
An artificial reverberation arrangement comprising a number of mechanical units each of which comprises a microphone, an amplifier and a loudspeaker. These units are arranged in such a way...
4352954 Artificial reverberation apparatus for audio frequency signals  
An artificial reverberation apparatus for audio frequency signals, comprises a first delay device preceded by an adder. A feedback circuit couples the output of the delay device to an input of the...
4350072 Reentrant reverberation generator for an electronic musical instrument  
A reverberation effect is produced in a musical tone generator of the type in which waveshape data points are sequentially and repetitively read out of a memory at a rate corresponding to the...
4349697 Sound reproduction system  
A system for converting an audio signal into a three dimensional phased sound that simulates the performance of live music in an acoustically superior music hall includes a signal divider which...
4338581 Room acoustics simulator  
Room acoustics simulation is achieved by digitally defining delay and weighting parameters and generating sampled analog signal responses. In the early portion of a response term an accurate...
4329544 Sound reproduction system for motor vehicle  
A sound reproduction system for a motor vehicle in which two channel signals are applied to two loudspeakers provided in the passenger compartment to reproduce the signals. The system includes a...

Matches 301 - 350 out of 417 < 1 2 3 4 5 6 7 8 9 >