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8170230 |
Reducing audio masking
This specification describes technologies relating to reducing audio masking. In general, one aspect of the subject matter described in this specification can be embodied in methods that include...
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8166287 |
Method and system for unified audio control on a personal computer
A system and method for improved audio controls on a personal computer is provided. The system and method provide a unified architecture for audio controls across hardware and software interfaces...
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8165318 |
Process for adjusting the sound volume of a digital sound recording
The present invention relates to a process for adjusting the sound volume of a digital sound recording characterized in that it comprises: a step consisting of determining, in absolute values, for...
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8160274 |
System and method for digital signal processing
The present invention provides for methods and systems for digitally processing an audio signal. Specifically, the present invention provides for a headliner speaker system that is configured to...
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8155349 |
Muting control device, muting control method, and muting control program
When controlling the audio signal to the mute mode from an unmute mode, first, the muting circuit switches from the non-attenuating state to the attenuating state to cause the muting circuit to...
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8155348 |
Post phase-inverter volume control
A post phase-inverter master volume regulator for use in combination with a tube-type musical amplifier having a phase-inverter tube. The signals at both sides of the phase-inverter tube's DC...
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8144880 |
Audio amplifier capable of performing self-oscillation
An audio amplifier includes a plurality of sub-audio amplifier sets, a clock source, and a speaker. When the audio amplifier is under an audio amplify mode, the plurality of sub-audio amplifier...
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8130980 |
Automatic gain control circuit for volume control and corresponding method for volume control
There is provided an automatic gain control circuit for volume control receiving at least one audio signal input via either a wired connection or a wireless connection. The circuit includes an...
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8127125 |
Method and system for unified audio control on a personal computer
A system and method for improved audio controls on a personal computer is provided. The system and method provide a unified architecture for audio controls across hardware and software interfaces...
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8116483 |
Speaker device with the phase changing device for varying the phase of the audio signal
A speaker device comprises a first speaker (SP1) for reproducing an audio signal and a second speaker (SP2) adapted for reproducing an audio signal and spaced from the first speaker horizontally by...
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8116485 |
Adaptive gain control system
An automatic gain control system maintains desired signal content level, such as voice, in an output signal. The system includes automatic gain control over an input signal, and compensates the...
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8116461 |
Sound volume automatic adjustment method and system
A control method to automatically adjust the volume of a sound transmitter based on the measurement and the computation of the acoustic statistics of the room where the sound is emitted. The system...
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8111099 |
Multi-channel audio playback apparatus and method
A multi-channel audio playback apparatus including a channel interface, a first switching amplifier and a second switching amplifier is provided. The channel interface is used to receive...
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8090120 |
Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal
The invention relates to the measurement and control of the perceived sound loudness and/or the perceived spectral balance of an audio signal. An audio signal is modified in response to...
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8085941 |
System and method for dynamic sound delivery
A dynamic range manipulation system, for use for example in an audio playback system such as a two-way communication system, mobile telephone, MP3 player, and the like, obtains a measure of ambient...
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8085953 |
Audio-signal time-axis expansion/compression method and device
An audio-signal time-axis expansion/compression method for subjecting an audio signal to time-axis expansion/compression at a time domain includes the steps of: cross-fade-signal generating wherein...
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8082157 |
Apparatus for encoding and decoding audio signal and method thereof
A method and/or apparatus for encoding and/or decoding an audio signal is disclosed, in which a downmix gain is applied to a downmix signal in an encoding apparatus which, in turn, transmits, to a...
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8077474 |
Variable equalizer apparatus
A variable equalizer apparatus for forward and/or reverse equalizers in an amplifier. The system can include a structure to allow continuous contact of the signal flow as an equalizer is removed;...
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8073702 |
Apparatus for encoding and decoding audio signal and method thereof
A method and/or apparatus for encoding and/or decoding an audio signal is disclosed, in which a downmix gain is applied to a downmix signal in an encoding apparatus which, in turn, transmits, to a...
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8059832 |
Audio signal processing method and apparatus
When an inputted audio signal is outputted from a speaker device having a predetermined input-output characteristic, the predetermined input-output characteristic being selected such that the...
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8054994 |
Method and apparatus for audio normalization
A request is received to play an audio file. A determination is made regarding whether volume normalization parameters associated with the audio file are stored in a media library. If the volume...
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8050412 |
Scaling adjustment to enhance stereo separation
A demodulator (10) converts television signals to video baseband signals and audio baseband signals including stereo signals representing a right channel signal value and a left channel signal...
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8045739 |
Method and apparatus for controlling band split compressors in a hearing aid
In a method and hearing aid (200) for processing sound signals for hearing impaired persons by providing multi-band compression processing an input sound signal is filtered by a band split filter...
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8036402 |
Distortion compensation
A distortion compensation system minimizes distortion in an audio system by monitoring a supply voltage and adjusting a clipping threshold and/or compression knee. An adjustable gain circuit...
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8032385 |
Method for correcting metadata affecting the playback loudness of audio information
A coded signal conveys encoded audio information and metadata that may be used to control the loudness of the audio information during its playback. If the values for these metadata parameters are...
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8027645 |
Systems and methods for automatically tuning a frequency modulator in a mobile device
A method for automatically tuning a frequency modulator in a mobile device is described. A frequency band is automatically scanned using a frequency modulation (FM) receiver. The FM receiver is...
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8019095 |
Loudness modification of multichannel audio signals
Scaling, by a desired amount sm, the overall perceived loudness Lm of a multichannel audio signal, wherein perceived loudness is a nonlinear function of signal power P, by scaling the perceived...
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8019105 |
Hearing aid with adaptive compressor time constants
A hearing aid includes a microphone for conversion of sound into an input audiosignal, a signal processor for processing the input audiosignal, the signal processor including a compressor, and a...
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8014534 |
Efficient and scalable parametric stereo coding for low bitrate audio coding applications
The present invention provides improvements to prior art audio codecs that generate a stereo-illusion through post-processing of a received mono signal. These improvements are accomplished by...
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8014999 |
Frequency compensation for perceptual speech analysis
The invention provides a softscaled frequency compensation function that allows the evaluation of a first quality measure indicating a global impact of all distortions in an audio transmission...
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8014541 |
Method and system for audio filtering
A system and method for graphic equalization of audio signals is disclosed. Traditional graphic equalizers provide control over the gains in each of a set of frequency bands. However, the actual...
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8000968 |
Method and apparatus for switching speech or audio signals
A method and an apparatus for switching speech or audio signals, wherein the method for switching speech or audio signals includes when switching of a speech or audio, weighting a first high...
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7983430 |
System for hierarchical audio conflict control
A control system comprising a computing device, a memory device comprising a database, and a plurality of audio sources. The memory device is coupled to the computing device. The database comprises...
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7970153 |
Audio output apparatus
An audio output apparatus has a measuring circuit which measures the levels of at least two sound signals, a sound level adjusting module (a sound level adjusting circuit and a gain control...
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7961896 |
Expander circuit with reduced distortion
Systems for an expander circuit are disclosed. An expander circuit comprising a transmit amplifier for amplifying electrical signals received from a microphone. A rectifier circuit is responsive to...
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7945058 |
Noise reduction system
A noise reduction system is used in a BTSC system to reduce noise of an audio signal. The noise reduction system has an audio spectral compressing unit that has a filter and a memory in the...
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7929714 |
Integrated audio codec with silicon audio transducer
An integrated audio transducer with associated signal processing electronics is disclosed. A silicon audio transducer, such as a MEMS microphone or speaker, can be integrated with audio processing...
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7912226 |
Automatic measurement of audio presence and level by direct processing of an MPEG data stream
Automatic measurements are made of audio presence and level in an audio signal by direct processing of an MPEG data stream representing the audio signal, without reconstructing the audio signal....
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7903825 |
Personal audio playback device having gain control responsive to environmental sounds
A personal audio playback device having gain control responsive to environmental sounds provides for improved enjoyment of program material played back through headphones, while further providing...
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7894614 |
System and method for achieving extended low-frequency response in a loudspeaker system
A system and method for achieving extended low-frequency response and increased low-frequency sound pressure output capability in a loudspeaker system is provided. The system and method comprise...
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7856108 |
Method for preventing an output device from being damaged
The present invention relates to a method for preventing an output device from being damaged, which comprises the steps of: dividing the output value of an output device into a plurality of areas,...
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7805296 |
Audio data processing device including a judgment section that judges a load condition for audio data transmission
An audio data processing device including: a first processor; and a second processor which is connected to the first processor wherein the first processor includes: an audio data acquisition which...
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7787640 |
System and method for spectral enhancement employing compression and expansion
A spectral enhancement system is disclosed that includes an input node for receiving an input signal, at least one broad band pass filter coupled to the input node and having a first band pass...
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7783062 |
Automatic audio distortion control method and apparatus
Disclosed is an automatic audio distortion control method and apparatus, wherein the automatic audio distortion control apparatus comprises an amplifier (6) and a feedback loop which has its both...
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7760886 |
Apparatus and method for synthesizing three output channels using two input channels
For synthesizing at least three output channels using two stereo input channels, the stereo input channels are analyzed to detect signal components occurring in both input channels. A signal...
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7756281 |
Method of modifying audio content
At least one exemplary embodiment is directed to a method of generating a Personalized Audio Content (PAC) comprising: selecting Audio Content (AC) to personalize; selecting an Earprint; and...
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7729775 |
Spectral contrast enhancement in a cochlear implant speech processor
Psychophysical tests are administered to cochlear implant (CI) users to determine a spectral modulation transfer function (SMTF), the smallest detectable spectral contrast as a function of spectral...
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7715573 |
Audio bandwidth expansion
Bandwidth expansion for audio signals by frequency band translations plus adaptive gains to create higher frequencies; use of a common channel for both stereo channels limits computational...
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7715574 |
Audio apparatus for vessel
An apparatus (12) which overcomes the foregoing inconveniences of manually adjusting the audio device (10) volume related to a vessels speed and participants distance behind the vessel in a towable...
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7706545 |
Systems and methods for protection of audio amplifier circuits
Systems and methods for providing protection from failure events in a digital audio amplification system. One embodiment of the invention comprises a system having a digital amplifier controller,...
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