| Patents for H04R 29 - Monitoring arrangements; Testing arrangements (4,957) |
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| 08/21/2003 | WO2003028406A3 Method and apparatus for determining a nonlinear response function for a loudspeaker |
| 08/21/2003 | WO2002028140A3 Second order microphone array |
| 08/20/2003 | CN1437429A Hand-held audio assistant |
| 08/19/2003 | US6608905 Microphone bias current measurement circuit |
| 08/14/2003 | WO2003024152A3 Listening device |
| 08/14/2003 | WO2002050499A3 Method and apparatus for determining in situ the acoustic seal provided by an in-ear device |
| 08/06/2003 | EP1250830B1 Method and device for determining the quality of a signal |
| 08/05/2003 | US6603860 Apparatus and method for monitoring magnetic audio systems |
| 07/31/2003 | US20030142836 Microphone array having a second order directional pattern |
| 07/31/2003 | US20030142832 Adaptive method for detecting parameters of loudspeakers |
| 07/31/2003 | US20030142829 Systems and methods for determining sound of a moving object |
| 07/24/2003 | WO2003061333A2 Diagnostic circuit for a tweeter in a loudspeaker combination |
| 07/17/2003 | WO2003059007A2 Microphone support system |
| 07/17/2003 | WO2003059006A2 Method of compensating the effects of undesired vibrations impinging an audio component and system therefor |
| 07/16/2003 | CN1115079C Signal quality determining device and method |
| 07/15/2003 | US6594307 Device and method for signal quality determination |
| 07/10/2003 | US20030128849 Acoustic anti-transient-masking transform system for compensating effects of undesired vibrations and a method for developing thereof |
| 07/10/2003 | US20030127572 Microphone support system |
| 07/09/2003 | EP1250829B1 A method and a system for generation of a calibrated sound field |
| 07/08/2003 | US6590986 Patient-isolating programming interface for programming hearing aids |
| 06/26/2003 | WO2003052742A1 Voice-bearing light |
| 06/26/2003 | US20030118193 Method and system for digitally controlling a speaker |
| 06/25/2003 | EP1322037A2 Method for designing a modal equalizer for a low frequency sound reproduction |
| 06/25/2003 | EP1169884B1 Flat surface loudspeaker and method for operating the same |
| 06/24/2003 | US6584203 Second-order adaptive differential microphone array |
| 06/19/2003 | US20030112984 Voice-bearing light |
| 06/18/2003 | EP1198973B1 Device for adapting at least one acoustic hearing aid |
| 06/18/2003 | DE10214407C1 Measuring, evaluating and noise recognition device for signal transmission or storage systems, has estimator which supplies estimated parameter to model system whose output indicates instantaneous noise and distortion |
| 06/12/2003 | US20030108208 Method and device for comparing signals to control transducers and transducer control system |
| 06/11/2003 | EP1317871A2 Improved directional microphone system |
| 06/10/2003 | CA2273239C Device and method for signal quality determination |
| 06/04/2003 | EP1198974B1 Hearing aid with adaptive matching of microphones |
| 05/30/2003 | WO2003044473A1 Apparatus for measuring ultrasonic power |
| 05/29/2003 | US20030099365 Method for designing a modal equalizer for a low frequency sound reproduction |
| 05/22/2003 | WO2002056635A3 High fidelity audio signal reproduction system and method of operation |
| 05/21/2003 | CN1419795A Device and method for calibration of a microphone |
| 05/20/2003 | CA2380396C Hearing aid with adaptive matching of microphones |
| 05/15/2003 | WO2003040118A1 Novel 1,2,4-thiadiazolium derivatives as melanocortin receptor modulators |
| 05/15/2003 | CA2466145A1 Novel 1,2,4-thiadiazolium derivatives as melanocortin receptor modulators |
| 05/14/2003 | CN1418448A Adaptive microphone matching in multi-microphone directional system |
| 05/02/2003 | EP1033063B1 Feedback cancellation apparatus and methods |
| 04/24/2003 | US20030076965 Device and method for calibration of a microphone |
| 04/17/2003 | WO2003032683A1 Device for presenting acoustical and vibratory stimuli and method of calibration |
| 04/17/2003 | US20030073408 Automated system and method for automative time-based audio verification |
| 04/10/2003 | US20030069710 Method for quantifying the polar response of transducers |
| 04/09/2003 | EP1301060A1 Method and apparatus for determination of acoustic parameters for fitting hearing aids |
| 04/03/2003 | WO2003028406A2 Method and apparatus for determining a nonlinear response function for a loudspeaker |
| 04/03/2003 | US20030063755 System for controlling remote speakers using centralized amplifiers, centralized monitoring and master/slave communication protocol |
| 04/02/2003 | EP1297721A2 Gas flow sensor, speaker system and microphone |
| 03/27/2003 | WO2003026344A2 Acoustic device |
| 03/27/2003 | US20030059056 Method and apparatus for determining a nonlinear response function for a loudspeaker |
| 03/27/2003 | DE10200782C1 Testing circuit for plug-in cable connection between radio and audio amplifier uses evaluation of DC voltage received at radio end of cable connection from virtual earth point at amplifier end |
| 03/26/2003 | EP1295510A2 Device and method for calibration of a microphone |
| 03/20/2003 | WO2003024152A2 Listening device |
| 03/20/2003 | WO2003023422A1 Capacitance measuring circuit, capacitance measuring instrument, and microphone device |
| 03/20/2003 | WO2003023421A1 Capacitance measuring circuit, capacitance measuring instrument, and microphone device |
| 03/20/2003 | WO2003023420A1 Impedance measuring circuit, its method, and capacitance measuring circuit |
| 03/20/2003 | US20030055608 Method and device for determining the quality of a signal |
| 03/20/2003 | US20030053646 Listening device |
| 03/19/2003 | EP1293107A2 Method and apparatus for measuring the performance of an implantable middle ear hearing aid, and the response of a patient wearing such a hearing aid |
| 03/19/2003 | EP1293104A1 Fft-based technique for adaptive directionality of dual microphones |
| 03/11/2003 | US6532296 Active noise reduction audiometric headphones |
| 03/06/2003 | US20030044022 Mobile terminal equipment |
| 03/04/2003 | US6526840 Method for measuring sound absorption power of a theater chair with a human being seated thereon and a dummy sound absorber |
| 02/27/2003 | WO2003017716A2 Speaker equalization tool |
| 02/27/2003 | WO2002030150A3 A hearing aid with adaptive matching of input transducers |
| 02/27/2003 | US20030039369 Environmental noise monitoring |
| 02/27/2003 | US20030039367 Integrated device for testing tone quality of a plurality of microphones |
| 02/20/2003 | WO2003015460A2 Sound processing system including wave generator that exhibits arbitrary directivity and gradient response |
| 02/20/2003 | WO2003015459A2 Sound processing system that exhibits arbitrary gradient response |
| 02/20/2003 | WO2003015458A2 Sound processing system including forward filter that exhibits arbitrary directivity and gradient response in multiple wave sound environment |
| 02/20/2003 | WO2003015457A2 Sound processing system including forward filter that exhibits arbitrary directivity and gradient response in single wave sound environment |
| 02/20/2003 | WO2003015456A2 Sound pollution surveillance system and method |
| 02/20/2003 | WO2002063918A3 Method for automatically adjusting the filter parameters of a digital equalizer and replay device for audio signals for carrying out such a method |
| 02/20/2003 | US20030035560 Acoustic device |
| 02/20/2003 | US20030035555 Speaker equalization tool |
| 02/13/2003 | WO2003013041A2 Device and method for transmitting, receiving and processing audio control signals in information systems |
| 02/13/2003 | US20030031328 Second-order adaptive differential microphone array |
| 02/13/2003 | DE10138434C1 Fokussierender elektroakustischer Wandler und Verfahren zum Test seiner Ausgangsleistung The focusing electroacoustic transducer and method for testing of its output |
| 02/12/2003 | EP1283517A2 Focussed electro-acoustic transducer and method for testing its output power |
| 02/10/2003 | CA2357060A1 Noise pollution monitoring system with display panel and video capture |
| 02/06/2003 | US20030026435 Focussing electroacoustic transducer and method for testing its output power |
| 01/30/2003 | DE10120460C1 Diagnosis method for receiver loudspeaker system connection e.g. for car radio, using variation of end stage operating point for testing bass and/or medium tone loudspeakers and test tone for testing high tone loudspeaker |
| 01/29/2003 | EP0879502B1 A method for implementing a sound reproduction system for a large space, and a sound reproduction system |
| 01/23/2003 | US20030016835 Adaptive close-talking differential microphone array |
| 01/22/2003 | EP1278395A2 Second-order adaptive differential microphone array |
| 01/21/2003 | US6509753 Customizable nest that requires no machining or tools |
| 01/21/2003 | CA2240592C Sound system |
| 01/16/2003 | US20030014566 System for programming hearing aids |
| 01/15/2003 | EP1275267A2 A directional microphone assembly |
| 01/09/2003 | WO2002071799A3 A communications system |
| 01/09/2003 | US20030007648 Virtual audio system and techniques |
| 01/08/2003 | EP1273927A1 Environmental noise monitoring |
| 01/03/2003 | WO2001087009A3 Gas flow sensor, speaker system and microphone |
| 01/02/2003 | US20030002698 Auditory prosthesis, a method and a system for generation of a calibrated sound field |
| 12/31/2002 | US6501277 Automotive harness and audio system analyzer |
| 12/19/2002 | US20020191805 In-the-ear hearing aid with directional microphone system |
| 12/19/2002 | US20020191800 In-situ transducer modeling in a digital hearing instrument |
| 12/18/2002 | EP1266233A1 Automotive harness and audio system analyzer |
| 12/10/2002 | US6492823 Customizable nest providing for adjustable audio isolation for testing wireless devices |