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Searching: audio signal





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Patent # Description
US-8,433,584 Multi-channel audio decoding method and apparatus therefor
Provided is a multi-channel audio decoding method and apparatus therefor, the method involving decoding filter bank coefficients of a plurality of bands from a...
US-8,433,583 Audio decoding
An audio decoder comprises a receiver (801) for receiving input data comprising an N-channel signal corresponding to a down-mixed signal of an M-channel audio...
US-8,433,582 Method and apparatus for estimating high-band energy in a bandwidth extension system
A method (100) includes receiving (101) an input digital audio signal comprising a narrow-band signal. The input digital audio signal is processed (102) to...
US-8,433,581 Audio encoding device and audio encoding method
There is provided an audio encoding device capable of effectively encoding stereo audio in audio encoding having monaural-stereo scalable configuration. In this...
US-8,433,575 Augmenting an audio signal via extraction of musical features and obtaining of media fragments
A system and method is described in which a multimedia story is rendered to a consumer in dependence on features extracted from an audio signal representing for...
US-8,433,431 Displaying text to end users in coordination with audio playback
Technologies described relate to coordination between audio and tracking of the corresponding text in an audio recognition mode and an audio playback mode....
US-8,433,430 Cellular wireless telephone and audio codec therefor
The present invention provides an audio codec for converting digital audio signals to analogue audio signals, the audio codec comprising: two digital audio bus...
US-8,433,243 Wireless earphone for use in bluetooth piconets
An audio device includes a Bluetooth receiver, a Bluetooth transmitter, a speaker and a housing. The Bluetooth receiver is capable of wirelessly receiving...
US-8,433,085 Video and audio output system
An acoustic signal output control section extracts, from an acoustic signal, a low-frequency-component acoustic signal and a high-frequency-component acoustic...
US-8,433,080 Bone conduction hearing device with open-ear microphone
Systems and methods for transmitting an audio signal through a bone of a user includes receiving an audio signal from a first microphone positioned at an...
US-8,433,079 Modified limiter for providing consistent loudness across one or more input tracks
A modified limiter of the present invention produces a consistent loudness level across one or more input tracks. The modified limiter has a target threshold,...
US-8,433,078 High perceived audio quality class D amplifier
An audio amplifier and a method of operating such an amplifier are disclosed. The audio amplifier includes a switch disabling controller and/or an output...
US-8,433,076 Electronic apparatus for generating beamformed audio signals with steerable nulls
An electronic apparatus is provided having a front side and a rear side oriented in opposite directions along a first axis, and a right-side and a left-side...
US-8,433,075 Audio system based on at least second-order eigenbeams
A microphone array-based audio system that supports representations of auditory scenes using second-order (or higher) harmonic expansions based on the audio...
US-8,433,061 Reducing echo
Far-end audio signal data generated by a far-end device during voice cross-talk between the far-end device and a near-end device is received via a network....
US-8,433,060 Method and system for stereo echo cancellation for VoIP communication systems
An exemplary embodiment of the present invention is directed toward a method and system for cancelling line echo in the presence of a known secondary audio...
US-8,432,687 Answer bracelet
An answer bracelet with a circular bracelet band suitable for wearing an a person's wrist. A hollowed out area in the top of the bracelet band houses a digital...
US-8,432,323 Antenna integrated with a portable communication device
A radio is presented in which a short-range antenna, along with a speaker, is contained within a non-conductive speaker bracket. The antenna is a PIFA that is...
US-8,432,148 Apparatus and method for a smooth powerup of a reference signal
A circuit for providing a reference voltage can be widely used in audio applications. However, at startup an abrupt start in the reference signal can cause...
US-8,431,957 Audio dosage control
A method for controlling consumer exposure to audio dosage for a composite audio signal, the method comprising: sampling the composite audio signal;...
US-8,431,810 Tempo detection device, tempo detection method and program
A tempo detection device includes: a basic feature amount extracting section which extracts a plurality of types of basic feature amounts from an input audio...
US-RE44,185 Radio communication apparatus and radio communication method, radio communication system, recording medium, and...
The present invention relates to a radio communication apparatus and a radio communications method, a radio communication system, a recording medium, and a...
US-8,429,694 Mobile video system
A mobile video system includes a first video source, a second video source, a first video monitor, a second video monitor, an audio signal receiver, and a...
US-8,429,687 System and method for an active video electronic programming guide
Techniques for transmission and preparation for display of real-time audio-visual content of a plurality of TV programs over electronic communications network...
US-8,429,440 Flat panel display driver method and system
Methods and systems are described for enabling display system data transmission during use. An integrated circuit package includes input interface circuitry...
US-8,429,299 Distributed audio and video processing
A method of distributing audio and video processing tasks among devices interconnected to a display device via a local network is disclosed. In one embodiment,...
US-8,428,959 Audio packet loss concealment by transform interpolation
In audio processing for an audio or video conference, a terminal receives audio packets having transform coefficients for reconstructing an audio signal that...
US-8,428,958 Apparatus and method of encoding and decoding signals
A method of encoding an audio signal, where signals including two or more channel signals are downmixed to a mono signal, the mono signal is divided into a...
US-8,428,957 Spectral noise shaping in audio coding based on spectral dynamics in frequency sub-bands
A technique of spectral noise shaping in an audio coding system is disclosed. Frequency decomposition of an input audio signal is performed to obtain multiple...
US-8,428,956 Audio encoding device and audio encoding method
There is provided an audio encoding device capable of effectively encoding a stereo audio even when a correlation between channels of the stereo audio is small....
US-8,428,953 Audio decoding device, audio decoding method, program, and integrated circuit
An audio decoding device of the present invention includes: a decoding unit decoding a stream to a spectrum coefficient, and outputting stream information when...
US-8,428,949 Apparatus and method for classification and segmentation of audio content, based on the audio signal
An apparatus for classifying an input audio signal into audio contents of a first and second class, comprising an audio segmentation module adapted to segment...
US-8,428,946 System and method for multi-channel multi-feature speech/noise classification for noise suppression
An architecture and framework for speech/noise classification of an audio signal using multiple features with multiple input channels (e.g., microphones) are...
US-8,428,942 Method and apparatus for re-encoding signals
At the time of encoding audio content, the finally required data rate for delivery to the customer may be unknown. A data format is disclosed that is optimized...
US-8,428,941 Method and apparatus for lossless encoding of a source signal using a lossy encoded data stream and a lossless...
In lossy based lossless coding a PCM audio signal passes through a lossy encoder to a lossy decoder. The lossy encoder provides a lossy bit stream. The...
US-8,428,940 Metadata-based weighting of geotagged environmental audio for enhanced speech recognition accuracy
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for enhancing speech recognition accuracy. In one aspect, a...
US-8,428,936 Decoder for audio signal including generic audio and speech frames
A method for decoding audio frames includes producing a first frame of coded audio samples, producing at least a portion of a second frame of coded audio...
US-8,428,743 Equal loudness contour with channel specific map laws
A method is described for generating electrode stimulation signals for an implanted electrode array. An acoustic audio signal is processed to generate band pass...
US-8,428,661 Speech intelligibility in telephones with multiple microphones
The present invention is directed to improved speech intelligibility in telephones with multiple microphones. Such a telephone includes a first microphone, a...
US-8,428,427 Television program transmission, storage and recovery with audio and video synchronization
An apparatus and methods are described for receiving, storing, and recovering from storage one or more television program while maintaining proper audio to...
US-8,428,292 Vehicle audio system having portable powered speaker for connecting a portable entertainment device
A vehicle audio system includes an interior trim panel having an opening with a speaker module removably secured therein and having a speaker electrically...
US-8,428,278 Improvements to systems for acoustic diffusion
Described is a unit for amplifying and processing audio signals for driving an electro-acoustic transducer (D), comprising: an input for audio signals; a...
US-8,428,277 Clipping protection in fixed-width audio mixing
A mixing system provides both clipping protection and signal level conservation while the system operates in the original width type. The mixing system includes...
US-8,428,273 Wireless digital transmission system for loudspeakers
This invention relates to a wireless digital transmission system for loudspeakers comprising: compression means for the file representing the digital audio...
US-8,428,271 Balanced distortion for musical instrument
A device is disclosed to provide balanced distortion in a musical instrument and to emulate the sound of a tube amplifier when overdriven. The device distorts,...
US-8,428,270 Audio gain control using specific-loudness-based auditory event detection
In one disclosed aspect, dynamic gain modifications are applied to an audio signal at least partly in response to auditory events. In another aspect, an input...
US-8,428,268 Array speaker apparatus
An array speaker apparatus includes an array speaker in which plural speaker units are arranged in a single body, a sound source localization adding unit which...
US-8,428,267 Method and an apparatus for decoding an audio signal
A method for processing an audio signal, comprising: receiving a downmix signal, a first multi-channel information, and an object information; processing the...
US-8,428,247 Echo mitigation in a conference call
In an example embodiment, an example method is provided for echo mitigation in a conference call. In this method, a test audio signal is transmitted to a...
US-8,428,236 Conference audio system, process for distributing audio signals and computer program
Conference audio systems are widely known and are usually used in political or economic debates, at fairs and wherever a plurality of people discuss with each...
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