| Patents for H03G 5 - Tone control or bandwidth control in amplifiers (3,156) |
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| 12/22/2011 | WO2011123679A3 Audio processing system and method |
| 12/22/2011 | WO2005091807A3 Equalizer parameter control interface and method for parametric equalization |
| 12/20/2011 | US8081776 Indoor communication system for a vehicular cabin |
| 12/20/2011 | US8081775 Loudspeaker apparatus for radiating acoustic waves in a hemisphere around the centre axis |
| 12/20/2011 | US8081767 Method for adjusting frequency response curve of speaker |
| 12/15/2011 | US20110305352 Cross Product Enhanced Harmonic Transposition |
| 12/13/2011 | US8077882 Audio reproducing apparatus |
| 12/13/2011 | US8077881 Sound device |
| 12/13/2011 | US8077880 Combined multirate-based and fir-based filtering technique for room acoustic equalization |
| 12/08/2011 | US20110299704 Frequency-tracked synthesizer employing selective harmonic amplification and/or frequency scaling |
| 12/07/2011 | CN202068383U Signal amplifier |
| 12/01/2011 | US20110293112 Dual high frequency driver canalphone system |
| 12/01/2011 | US20110293108 system and method for producing a directional output signal |
| 11/29/2011 | US8068621 Controller of graphic equalizer |
| 11/23/2011 | EP1665524B1 Dynamic bass boost apparatus and method |
| 11/23/2011 | CN102257728A Audio signal adjustment device and audio signal adjustment method |
| 11/23/2011 | CN101170302B Audio processing method and audio processing apparatus |
| 11/17/2011 | WO2011141772A1 Method and apparatus for processing an audio signal based on an estimated loudness |
| 11/17/2011 | US20110280407 Compressor Based Dynamic Bass Enhancement with EQ |
| 11/15/2011 | US8059833 Method of compensating audio frequency response characteristics in real-time and a sound system using the same |
| 11/10/2011 | US20110274292 Acoustic characteristic correction coefficient calculation apparatus, acoustic characteristic correction coefficient calculation method and acoustic characteristic correction apparatus |
| 11/09/2011 | CN202035093U Stream media transmission system based on serial bus and comprising equalizer |
| 11/08/2011 | US8054993 System for automatic compensation of low frequency audio based on human loudness perceptual models |
| 11/03/2011 | US20110268293 System and Method for Processing Signals to Enhance Audibility in an MRI Environment |
| 11/02/2011 | EP1699259B1 Audio output apparatus |
| 11/01/2011 | US8050424 Speaker system, audio amplifier and audio system |
| 10/26/2011 | EP1876706B1 Acoustic reproduction device |
| 10/26/2011 | CN101009481B Sound control circuit for hearing aid |
| 10/25/2011 | US8045731 Sound quality adjustment device |
| 10/20/2011 | US20110255699 Signal correction apparatus and signal correction method |
| 10/18/2011 | CA2491570C Controlling loudness of speech in signals that contain speech and other types of audio material |
| 10/18/2011 | CA2387125C Vehicle accessory microphone |
| 10/13/2011 | US20110249843 Sound perception using frequency transposition by moving the envelope |
| 10/12/2011 | CN102217192A Variable gain amplifier |
| 10/06/2011 | WO2011123679A2 Audio processing system and method |
| 10/06/2011 | US20110243337 Audio processing system and method |
| 10/05/2011 | CN102208901A Method for realizing equalizer in moving picture experts group audio layer-3 (MP3) decoding process |
| 10/04/2011 | US8032385 Method for correcting metadata affecting the playback loudness of audio information |
| 10/04/2011 | US8031884 Method and apparatus for reproducing music file |
| 10/04/2011 | US8031883 Crosstalk cancellation system with sound quality preservation and parameter determining method thereof |
| 10/04/2011 | US8031876 Audio system |
| 09/27/2011 | US8027487 Method of setting equalizer for audio file and method of reproducing audio file |
| 09/22/2011 | US20110228948 Systems and methods for processing audio data |
| 09/20/2011 | US8023665 Microphone-tailored equalizing system |
| 09/13/2011 | US8019093 Stream segregation for stereo signals |
| 09/08/2011 | US20110216918 Apparatus and Method for Generating a Bandwidth Extended Signal |
| 09/08/2011 | US20110216916 Vehicle engine sound enhancement |
| 09/06/2011 | US8014541 Method and system for audio filtering |
| 08/23/2011 | US8005240 Speaker with frequency directed dual drivers |
| 08/23/2011 | US8005233 Bass enhancement for audio |
| 08/16/2011 | US8000481 Speaker array and microphone array |
| 08/10/2011 | CN101034878B Gain adjusting method and gain adjusting device |
| 08/04/2011 | US20110188672 Acoustic reproduction device |
| 08/04/2011 | US20110188663 Artificial engine sound generator |
| 08/03/2011 | EP2352225A1 Audio signal adjustment device and audio signal adjustment method |
| 08/03/2011 | EP2351213A1 Variable gain amplifier |
| 08/02/2011 | US7991170 Loudspeaker crossover filter |
| 07/28/2011 | US20110182440 Woofer-less and enclosure-less loudspeaker system |
| 07/27/2011 | CN101166019B Audio signal processing device and method |
| 07/26/2011 | US7986797 Signal processing system, signal processing apparatus and method, recording medium, and program |
| 07/26/2011 | US7986796 Apparatus to generate multi-channel audio signals and method thereof |
| 07/26/2011 | US7986792 Adapter connectable between audio amplifier and transmitter for cordless speaker |
| 07/21/2011 | WO2011087460A1 A method and a device for generating at least one audio file, and a method and a device for playing at least one audio file |
| 07/21/2011 | US20110176696 Method and system for enhancing bass effect in audio signals |
| 07/14/2011 | US20110170712 Sound reproducing apparatus |
| 07/14/2011 | US20110170711 Audio Encoder, Audio Decoder, Methods for Encoding and Decoding an Audio Signal, and a Computer Program |
| 07/14/2011 | US20110170710 Method and apparatus for adjusting volume |
| 07/14/2011 | DE102010004098A1 Resonance sound producing part, has oscillation circuits whose modified signal is added to original signal in weak form when resonance produces strong delay of original signal such that fine sound is produced |
| 07/07/2011 | WO2011081965A1 System and method for digital signal processing |
| 07/07/2011 | WO2011079758A1 Management method and manager for audio application conflict |
| 07/07/2011 | CA2785743A1 System and method for digital signal processing |
| 07/05/2011 | US7974420 Mixed audio separation apparatus |
| 06/30/2011 | WO2011077509A1 Voice control device and voice control method |
| 06/28/2011 | US7970153 Audio output apparatus |
| 06/23/2011 | WO2011072737A1 Audio system, method for generating an audio signal, computer program and audio signal |
| 06/23/2011 | US20110150241 Group-delay based bass management |
| 06/23/2011 | US20110150240 Modulation device and demodulation device |
| 06/23/2011 | US20110148515 Quasi-resonant composite resonance circuit |
| 06/23/2011 | US20110148514 Frequency variable composite resonance circuit |
| 06/22/2011 | CN1830141B Audio conditioning apparatus and the method thereof |
| 06/22/2011 | CN102104368A Equalizer unit based on frequency compensation |
| 06/21/2011 | US7965852 Audio signal processing method and apparatus |
| 06/16/2011 | US20110142258 Apparatus for Processing an Audio Signal |
| 06/14/2011 | US7961892 Apparatus and method for monitoring speaker cone displacement in an audio speaker |
| 06/14/2011 | US7961888 Method and system for enhancing bass effect in audio signals |
| 06/09/2011 | US20110135112 Audio signal processing device and audio signal processing method |
| 06/09/2011 | DE102006004257B4 Adaptivverstärker Adaptivverstärker |
| 06/08/2011 | CN101378249B Equalizer system and filtering method |
| 06/07/2011 | US7957545 Stereo speaker system having acoustic filter for improving low frequency characteristic |
| 06/07/2011 | US7957543 Listening device |
| 05/31/2011 | US7953229 Sound processor, sound reproducer, and sound processing method |
| 05/26/2011 | US20110123046 Signal processing apparatus, signal processing method, and program therefor |
| 05/25/2011 | EP2325843A1 Frequency-specific determination of audio dose |
| 05/24/2011 | USRE42390 Sound signal playback machine and method thereof |
| 05/19/2011 | US20110116655 Apparatus and Method for Audio Conversion |
| 05/12/2011 | US20110110533 Multiband drc system and method for controlling the same |
| 05/11/2011 | EP2111041B1 Audio processing device, audio processing method, and program |
| 05/11/2011 | CN102055425A Audio system phase equalizion |
| 05/10/2011 | US7940941 Effect adding method and effect adding apparatus |
| 05/10/2011 | US7940842 Reciprocal index lookup for BTSC compatible coefficients |