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Searching: audio signal





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Patent # Description
US-8,204,258 Multiband audio dynamics processor
An audio system includes an automatic level controller receiving at least one input audio signal from at least one audio medium. The automatic level controller...
US-8,204,256 System and method for muting TV speakers when headphones in use
An audio source (TV, stereo) detects, through a wireless signal from a headphone or from its cradle, when the headphone has been disengaged from the cradle. In...
US-8,204,255 Method of distortion-free signal compression
An audio signal in which an audio signal is received as a stream of digital samples, each being a numerical value representing a sampled signal level. A first...
US-8,204,253 Self calibration of audio device
An audio device performs self calibration with respect to an audio source location when processing an audio signal frame determined likely to be dominated by...
US-8,204,251 Amplifier apparatus and method
An amplifier start-up apparatus for reducing transient signals in a circuit, for example an audio circuit, comprising a reference voltage generator circuit for...
US-8,204,250 Audio processing system and method
In an audio processing system and method, pull-up circuits and a capacitor circuit are used to cause gradual change in voltage levels of audio signals which...
US-8,204,249 Methods and systems for reducing acoustic echoes in multichannel audio-communication systems
Various embodiments of the present invention are directed to adaptive real-time, acoustic echo cancellation methods and systems. One method embodiment of the...
US-8,204,247 Position-independent microphone system
An audio system generates position-independent auditory scenes using harmonic expansions based on the audio signals generated by a microphone array. In one...
US-8,204,242 Active noise reduction adaptive filter leakage adjusting
An active noise reduction system using adaptive filters. A method of operation the active noise reduction system includes smoothing a stream of leakage factors....
US-8,204,239 Audio processing method and audio processing apparatus
Samples of a component having a frequency less than a predetermined frequency in an input audio signal that is a digital signal having a predetermined sampling...
US-8,204,237 Adaptive primary-ambient decomposition of audio signals
A stereo audio signal is processed to determine primary and ambient components by transforming the signal into vectors corresponding to subband signals, and...
US-8,204,234 Apparatus and method for generating binaural beat from stereo audio signal
An apparatus and method for generating a binaural beat for brainwave induction is provided. Upon receipt of a stereo audio signal, a decorrelator extracts a...
US-8,204,222 Steganographic encoding and decoding of auxiliary codes in media signals
Methods of steganographically encoding auxiliary data into audio and decoding the auxiliary data. In an encoding method, a processor maps the auxiliary data to...
US-8,203,655 Multimedia television system
A multimedia television system is disclosed. The multimedia television system comprises a receiver, a detector, an audio processing/controlling device, and a...
US-8,203,364 Method of transmitting audio and video signals using one connector and electronic device using same
An electronic device includes a connector, at least two kinds of signal transmitting circuits, and a selecting system. The connector is capable of transmitting...
US-RE43,478 Method and apparatus for compensating reproduced audio signals of an optical disc
An apparatus and method for compensating audio signals to be recorded on an optical disc to optimize usage of memory in an audio decoding circuit, and to...
US-8,201,210 Method and system for a media processor
A system that incorporates teachings of the present disclosure may include, for example, a set-top box (STB) having a controller to manage power distribution in...
US-8,201,014 System and method for decoding an audio signal
A system and method are provided for decoding an audio signal. In one embodiment, a first pulse is identified with a predetermined relative duration with...
US-8,200,730 Computing circuits and method for running an MPEG-2 AAC or MPEG-4 AAC audio decoding algorithm on programmable...
The present invention relates to computing circuits and method for running an MPEG-2 AAC or MPEG-4 AAC algorithm efficiently, which is used as an audio...
US-8,200,499 High-frequency bandwidth extension in the time domain
A system extends the high-frequency spectrum of a narrowband audio signal in the time domain. The system extends the harmonics of vowels by introducing a non...
US-8,200,496 Audio signal decoder and method for producing a scaled reconstructed audio signal
A set of peaks in a reconstructed audio vector S of a received audio signal is detected and a scaling mask .psi.(S) based on the detected set of peaks is...
US-8,200,482 Systems, methods and apparatus for transmitting data over a voice channel of a telephone network using linear...
The various embodiments described herein generally provide apparatus, systems and methods which facilitate the transmission of data between a client device and...
US-8,200,351 Low power downmix energy equalization in parametric stereo encoders
A method and audio device are presented that preserve mono energy during downmixing of a hybrid coding process of an audio signal. The method includes...
US-8,200,349 Integrated audio video signal processing system using centralized processing of signals
Integrated processing of audio/video signals can eliminate unnecessary signal processors and converters without losing the functionality of typical home...
US-8,199,956 Acoustic in-ear detection for earpiece
An apparatus comprising at least one earpiece suitable to be applied at an auditory opening of a user's ear and a signal processor is disclosed. The earpiece...
US-8,199,940 Audio reproduction system and speaker apparatus
An audio reproduction system includes: a first speaker arranged near a listener and behind a head of the listener with a speaker unit being held by first...
US-8,199,936 Signal converter, output amplifying device, audio apparatus, and transmitting and receiving system
Four speakers are matrix-connected to each other and a conversion circuit for converting audio signals of four channels into pulse width modulation signals of...
US-8,199,934 Audio level compressor
An audio level compressor for compressing the dynamic range of an input audio signal. The audio level compressor can be part of a microphone, or a separate...
US-8,199,933 Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal
Audio signal processing relating to the measurement and control of the perceived sound loudness and/or the perceived spectral balance of an audio signal is...
US-8,199,932 Multi-channel, multi-band audio equalization
A signal processing apparatus includes a plurality of equalizers configured to input an audio signal of a corresponding channel among audio signals of a...
US-8,199,930 Pop noise suppression apparatus and audio output system utilizing the same
A pop noise suppression apparatus for eliminating popping noise generated upon initiation or shutdown of an audio output circuit comprises a switch component...
US-8,199,925 Loudspeaker array audio signal supply apparatus
A first directivity parameter to provide a narrow directivity and a second directivity parameter to provide a wide directivity are preset for a directivity...
US-8,199,921 Sound field controlling device
A sound field controlling device for supplying audio signals to a plurality of speakers provided in a space to form a sound field in the space, includes a...
US-8,199,920 Personal computer based audio frequency impedance analyzer
An apparatus, method, and system for analyzing the response of a device under test using a signal generated by an audio card comprises a housing. The apparatus...
US-8,199,918 Loudspeaker protection circuit
A loudspeaker protection circuit comprises a rectification stage for receiving an input audio signal and producing a rectified output signal, a detection stage...
US-8,199,791 Mixed voice and spread spectrum data signaling with enhanced concealment of data
Systems, methods, and devices for mixed voice and spread spectrum data signaling with enhanced concealment of data are disclosed. Audible artifacts may be...
US-8,199,781 Device and method for demultiplexing received transport stream in digital broadcasting receiver
Disclosed herein is a device and method for demultiplexing in a digital broadcasting receiver for processing packet data configured by a packet header and a...
US-8,199,780 Multimedia apparatus and synchronization method thereof
A multimedia apparatus and a synchronization method thereof are provided. The multimedia apparatus includes a video output unit which outputs a video, and a...
US-8,198,526 Methods and apparatus for input devices for instruments and/or game controllers
Electronic game components are described. The electronic game components may define radiation striking zones in which user strikes may be detected. In response...
US-8,198,524 Apparatus for controlling a digital source
An apparatus for signal processing, wherein a disc is placed on a turntable and is provided with a groove which can be followed by the pick-up element, and...
US-RE43,461 Systems and methods for load detection and correction in a digital amplifier
Systems and methods for detecting the impedance of an output load coupled to a digital amplifier and compensating for changes in the response of the amplifier....
US-8,196,064 Method, system, and computer program product for managing controlled residential or non-residential environments
A control server, or similar central processor, manages the distribution of data (including audio and video), voice, and control signals among a plurality of...
US-8,195,843 HDMI controller circuit for transmitting digital data to compatible audio device using address decoder where...
The present invention provides a high definition media interface (HDMI) controller having a modular design internal bus structure, and applications thereof. The...
US-8,195,472 High quality time-scaling and pitch-scaling of audio signals
In one alternative, an audio signal is analyzed using multiple psychoacoustic criteria to identify a region of the signal in which time scaling and/or pitch...
US-8,195,465 Time-warping of decoded audio signal after packet loss
A technique is described for use in a decoder configured to decode a series of frames representing an encoded audio signal. The technique is for transitioning...
US-8,195,454 Speech enhancement in entertainment audio
The invention relates to audio signal processing. More specifically, the invention relates to enhancing entertainment audio, such as television audio, to...
US-8,195,452 High-quality encoding at low-bit rates
Methods and devices provide improved perceived quality of an audio (or other) coded signal at a low bit-rate. An input signal may be split into an outlier...
US-8,195,451 Apparatus and method for detecting speech and music portions of an audio signal
In an information detecting apparatus (1), a speech kind discrimination unit (11) discriminates and classifies an audio signal at an information source into...
US-8,195,318 Method and an apparatus for processing an audio signal
An apparatus for processing an audio signal and method thereof are disclosed. The preset invention includes receiving object information and a downmix signal...
US-8,195,316 Audio apparatus
An audio apparatus includes an input unit for inputting stereo signals in which multi-channel surround-sound signals are mixed in accordance with a ...
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