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