Patents for H04R 29 - Monitoring arrangements; Testing arrangements (4,957) |
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05/25/2004 | US6741714 Hearing aid with adaptive matching of input transducers |
05/19/2004 | EP1419672A2 Listening device |
05/19/2004 | DE10251209A1 Intelligent wireless microphone system, analyses speech signals and carries out appropriate control function on recognizing spoken concepts, words or content |
05/19/2004 | CN1498034A Microphone with same sensitivity |
05/18/2004 | US6738318 Audio reproduction system which adaptively assigns different sound parts to different reproduction parts |
05/13/2004 | US20040091122 Communications system |
05/06/2004 | US20040086131 System for auralizing a loudspeaker in a monitoring room for any type of input signals |
05/06/2004 | EP1416764A2 Method of setting parameters of a hearing aid and device for carrying out this method |
05/06/2004 | EP1415506A2 Sound processing system that exhibits arbitrary gradient response |
05/06/2004 | EP1415503A2 Sound processing system including wave generator that exhibits arbitrary directivity and gradient response |
05/06/2004 | EP1415502A2 Sound processing system including forward filter that exhibits arbitrary directivity and gradient response in multiple wave sound environment |
05/04/2004 | US6731760 Adjusting a loudspeaker to its acoustic environment: the ABC system |
05/04/2004 | US6731759 Audio signal reproduction device |
04/20/2004 | US6725108 System and method for interpretation and visualization of acoustic spectra, particularly to discover the pitch and timbre of musical sounds |
04/15/2004 | WO2003061333A3 Diagnostic circuit for a tweeter in a loudspeaker combination |
04/14/2004 | EP1408716A2 Microphones with equal sensitivity |
04/14/2004 | CN1146297C Device and method for signal quality determination |
04/13/2004 | US6721428 Automatic loudspeaker equalizer |
04/08/2004 | US20040066946 Method to determine a feedback threshold in a hearing device |
04/08/2004 | US20040066792 Signal switching apparatus and program |
03/25/2004 | WO2004025989A1 Calibrating a first and a second microphone |
03/25/2004 | US20040057593 Hearing aid with adaptive microphone matching |
03/25/2004 | US20040057583 Dynamic impedance comparator |
03/24/2004 | EP1401183A1 Method and device for echo cancellation |
03/24/2004 | EP0809900B1 An adaptive noise cancelling arrangement, a noise reduction system and a transceiver |
03/17/2004 | CN1483298A Method and apparatus for determining in situ the acoustic seal provided by an in-ear device |
03/11/2004 | WO2003059007A3 Microphone support system |
03/11/2004 | WO2003015457A3 Sound processing system including forward filter that exhibits arbitrary directivity and gradient response in single wave sound environment |
03/03/2004 | CN2605713Y Detecting device for loudspeaker voice coil positioning |
02/25/2004 | EP1391138A2 Method of generating an electrical output signal and acoustical/electrical conversion system |
02/24/2004 | US6697760 Position transducer |
02/19/2004 | DE10102856B4 Mikrophon Microphone |
02/12/2004 | DE10330903A1 Audiolautsprechererkennung mithilfe einer Gegen-EMK-Abtastung Audio speaker recognition using a back EMF sensing |
02/10/2004 | CA2199060C Sound insulating cap for sound level meters |
02/05/2004 | WO2003017716A3 Speaker equalization tool |
02/05/2004 | US20040022397 Microphone array having a second order directional pattern |
02/03/2004 | US6687377 Method and apparatus for determining in situ the acoustic seal provided by an in-ear device |
01/29/2004 | US20040019294 Method for the recording of acoustic parameters for the customization of hearing aids |
01/29/2004 | CA2429560A1 Method for the recording of acoustic parameters for the customization of hearing aids |
01/28/2004 | EP1080606B1 Feedback cancellation improvements |
01/21/2004 | CN1135753C Adaptive noise cancelling arrangement, noise reduction system and transceiver |
01/20/2004 | US6681019 Polarity determining circuit for loudspeakers, an audio circuit having a function of determining polarities of loudspeakers, and an audio circuit having functions of determining polarities of loudspeakers and switching the polarities |
01/15/2004 | US20040008848 Audio loudspeaker detection using back-EMF sensing |
01/15/2004 | US20040007916 Limiting the damaging effects of loud music from audio systems, particularly from automobile audio systems |
01/06/2004 | US6674864 Adaptive speaker compensation system for a multimedia computer system |
01/06/2004 | US6674862 Method and apparatus for testing hearing and fitting hearing aids |
01/01/2004 | US20040002781 Methods and apparatuses for adjusting sonic balace in audio reproduction systems |
12/30/2003 | US6671643 Method for testing a hearing aid, and hearing aid operable according to the method |
12/25/2003 | US20030235311 Audio testing system and method |
12/23/2003 | US6668062 FFT-based technique for adaptive directionality of dual microphones |
12/18/2003 | WO2003104924A2 Acoustical virtual reality engine and advanced techniques for enhancing delivered sound |
12/18/2003 | CA2488689A1 Acoustical virtual reality engine and advanced techniques for enhancing delivered sound |
12/17/2003 | EP0988774B1 Improved artificial ear and auditory canal system and means of manufacturing the same |
12/11/2003 | WO2003015456A3 Sound pollution surveillance system and method |
12/03/2003 | EP1366637A2 A communications system |
12/02/2003 | US6655212 Sound field measuring apparatus and method |
11/27/2003 | WO2003098831A1 Virtual speaker demonstration system and virtual noise simulation |
11/27/2003 | WO2003059006A3 Method of compensating the effects of undesired vibrations impinging an audio component and system therefor |
11/27/2003 | US20030220705 Audio distribution system with remote control |
11/26/2003 | EP1365410A1 Compressed audio data editing method and apparatus |
11/25/2003 | US6654468 Apparatus and method for matching the response of microphones in magnitude and phase |
11/25/2003 | US6651501 Adaptive equalizer for variable length sound tubes utilizing an electrical impedance measurement |
11/20/2003 | WO2003095957A1 Improvements to transducer testing |
11/20/2003 | WO2003015460A3 Sound processing system including wave generator that exhibits arbitrary directivity and gradient response |
11/20/2003 | WO2003015459A3 Sound processing system that exhibits arbitrary gradient response |
11/20/2003 | US20030216924 Compressed audio data editing method and apparatus |
11/20/2003 | US20030215097 Virtual speaker demonstration system and virtual noise simulation |
11/20/2003 | US20030215096 Method and apparatus for active latency characterization |
11/12/2003 | EP1360872A2 Method for automatically adjusting the filter parameters of a digital equalizer and replay device for audio signals for carrying out such a method |
11/12/2003 | EP1088298B1 Sound reproduction equipment and method for reducing the level of acoustical reflections in a room |
11/12/2003 | CN1455869A Device to audibly express impedance difference |
11/12/2003 | CN1127884C Signal quality determining device and method |
11/06/2003 | WO2003091870A1 Apparatus and method for adapting audio signal |
10/30/2003 | WO2003026344A3 Acoustic device |
10/30/2003 | US20030202666 Hand-held acoustic assistant |
10/29/2003 | EP1356706A2 Second order microphone array |
10/29/2003 | EP1356255A2 Method and apparatus for determining in situ the acoustic seal provided by an in-ear device |
10/23/2003 | WO2003015458A3 Sound processing system including forward filter that exhibits arbitrary directivity and gradient response in multiple wave sound environment |
10/23/2003 | US20030198356 Apparatus and method for matching the response of microphones in magnitude and phase |
10/23/2003 | US20030197965 Digital audio precompensation |
10/22/2003 | EP1355509A2 Digital audio precompensation |
10/22/2003 | EP1354497A2 Communication method and a hearing aid system |
10/22/2003 | CN2582311Y Instrument for measuring tone loudness |
10/15/2003 | EP1352543A1 Auditory signal generator for people suffering from tinnitus |
10/15/2003 | CN1449136A Signal distortion measurement and assessment system and method |
10/02/2003 | WO2003013041A3 Device and method for transmitting, receiving and processing audio control signals in information systems |
10/02/2003 | US20030187636 Signal distortion measurement and assessment system and method |
09/30/2003 | US6628568 System and method for verification of acoustic horn performance |
09/25/2003 | US20030179650 System and method for verification of acoustic horn performance |
09/18/2003 | WO2003076889A1 Method and system for measuring a system's transmission quality |
09/17/2003 | EP1344427A1 System for auralizing a loudspeaker in a monitoring room for any type of input signals |
09/11/2003 | US20030169177 Method and apparatus for boosting an audible signal in a notification system |
09/10/2003 | CN2572706Y Resonance frequency and mechanical compliance measurer for small bore electroacoustic device vibrating diaphragm |
09/09/2003 | US6618636 Computer system and method for controlling transmission of audio signal outputs from the computer system |
09/04/2003 | WO2002021879A3 Digital system to compensate power compression of loudspeakers |
08/28/2003 | US20030162819 Novel 1,2,4-thiadiazolium derivatives as melanocortin receptor modulators |
08/28/2003 | US20030161480 Preventing unsafe operation by monitoring switching means |
08/27/2003 | EP1337863A2 Dynamic impedance comparator |
08/27/2003 | CN1119919C Signal quality determining device and method |
08/26/2003 | US6611135 Method and electronic circuit for tuning vibratory transducers |