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Class Information
Number: 381/106
Name: Electrical audio signal processing systems and devices > Including amplitude or volume control > With amplitude compression/expansion
Description: Subject matter having electrical audio signal system combined with provision for decreasing the amplitude range of an applied audio signal or for restoring the full amplitude range of an amplitude compressed audio signal.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7620544 |
Method and apparatus for detecting speech segments in speech signal processing |
Nov. 17, 2009 |
| 7617109 |
Method for correcting metadata affecting the playback loudness and dynamic range of audio information |
Nov. 10, 2009 |
| RE40960 |
Switched signal processing circuit |
Nov. 10, 2009 |
| 7609840 |
System and method for hierarchical audio conflict control |
Oct. 27, 2009 |
| 7599503 |
Audio output level setting method and device |
Oct. 6, 2009 |
| 7599504 |
Apparatus and method for adjusting sound volume for televisions and other audio systems |
Oct. 6, 2009 |
| 7596232 |
Apparatus and method for adjusting sound volume for televisions and other audio systems |
Sep. 29, 2009 |
| 7590251 |
Clip detection in PWM amplifier |
Sep. 15, 2009 |
| 7580531 |
Dynamic range reducing volume control |
Aug. 25, 2009 |
| 7557289 |
Music delivering apparatus and music reproducing apparatus |
Jul. 7, 2009 |
| 7558391 |
Compander architecture and methods |
Jul. 7, 2009 |
| 7551745 |
Volume and compression control in movie theaters |
Jun. 23, 2009 |
| 7532728 |
Mechanism for using the allpass decomposition architecture for the cauer low pass filter used in a BTSC |
May. 12, 2009 |
| 7519189 |
Processing of an audio signal for presentation in a high noise environment |
Apr. 14, 2009 |
| 7489790 |
Digital automatic gain control |
Feb. 10, 2009 |
| 7460674 |
Audio effector circuit |
Dec. 2, 2008 |
| 7457424 |
Electronic volume device and remote controller thereof |
Nov. 25, 2008 |
| 7457422 |
Method and implementation for detecting and characterizing audible transients in noise |
Nov. 25, 2008 |
| 7440577 |
Methods and apparatus for automatic mixing of audio signals |
Oct. 21, 2008 |
| 7430296 |
Circuit arrangement for reducing the dynamic range of audio signals |
Sep. 30, 2008 |
| 7415119 |
Method for hierarchical audio conflict control |
Aug. 19, 2008 |
| 7403626 |
Level adjustment apparatus |
Jul. 22, 2008 |
| 7403627 |
Audio downmix apparatus with dynamic-range control and method for the same |
Jul. 22, 2008 |
| 7391875 |
Peak-limiting mixer for multiple audio tracks |
Jun. 24, 2008 |
| 7388959 |
Harmonic generator and pre-amp |
Jun. 17, 2008 |
| 7363096 |
Digital audio signal filtering mechanism and method |
Apr. 22, 2008 |
| 7362872 |
Method for noise reduction of a FM signal |
Apr. 22, 2008 |
| 7343019 |
Streaming normalization |
Mar. 11, 2008 |
| 7340069 |
System and method for split automatic gain control |
Mar. 4, 2008 |
| 7330554 |
Volume control apparatus and method thereof |
Feb. 12, 2008 |
| 7319761 |
Method and apparatus for locating and correcting sound overload |
Jan. 15, 2008 |
| 7317800 |
Apparatus and method for processing an audio signal to compensate for the frequency response of loudspeakers |
Jan. 8, 2008 |
| 7305100 |
Dynamic compression in a hearing aid |
Dec. 4, 2007 |
| 7305346 |
Audio processing method and audio processing apparatus |
Dec. 4, 2007 |
| 7274795 |
System for and method of audio signal processing for presentation in a high-noise environment |
Sep. 25, 2007 |
| 7272235 |
Method and apparatus for audio normalization |
Sep. 18, 2007 |
| 7269264 |
Method for reproducing audio signal from at least two different sources |
Sep. 11, 2007 |
| 7254243 |
Processing of an audio signal for presentation in a high noise environment |
Aug. 7, 2007 |
| 7233833 |
Method of modifying low frequency components of a digital audio signal |
Jun. 19, 2007 |
| 7224808 |
Dynamic carrier system for parametric arrays |
May. 29, 2007 |
| 7216221 |
Method and system for unified audio control on a personal computer |
May. 8, 2007 |
| 7212640 |
Variable attack and release system and method |
May. 1, 2007 |
| 7206420 |
Softclip method and apparatus |
Apr. 17, 2007 |
| 7181028 |
Audio converting device and converting method thereof |
Feb. 20, 2007 |
| 7110555 |
Sound signal reproducing apparatus |
Sep. 19, 2006 |
| 7110559 |
System and method for controlling audio output |
Sep. 19, 2006 |
| 7107109 |
Process for adjusting the sound volume of a digital sound recording |
Sep. 12, 2006 |
| 7031905 |
Audio signal processing apparatus |
Apr. 18, 2006 |
| 7027981 |
System output control method and apparatus |
Apr. 11, 2006 |
| 7024260 |
Method and apparatus for processing digital audio signal |
Apr. 4, 2006 |
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