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Searching: audio signal





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Patent # Description
US-8,438,030 Automated distortion classification
A method of and system for automated distortion classification. The method includes steps of (a) receiving audio including a user speech signal and at least...
US-8,438,019 Classification of audio signals
An encoder comprising an input for inputting frames of an audio signal in a frequency band, at least a first excitation block for performing a first excitation...
US-8,438,017 Method and apparatus for encoding/decoding audio signal using adaptive LPC coefficient interpolation
Provided are a method and apparatus for encoding or decoding an audio signal by adaptively interpolating a linear predictive coding (LPC) coefficient. In the...
US-8,438,012 Method and apparatus for adaptive sub-band allocation of spectral coefficients
An apparatus and method for adaptive sub-band allocation of spectral coefficients are disclosed. The sizes of sub-bands are determined according to the...
US-8,437,868 Method for coding and decoding the wideness of a sound source in an audio scene
A parametric description describing the wideness of a non-point sound source is generated and linked with the audio signal of said sound source. A presentation...
US-8,437,812 Headset with auxiliary input(s) for cell phone and/or other devices
An active-noise-reduction (ANR) headset includes at least one auxiliary connection to an output of at least one device, such as a personal communications,...
US-8,437,715 Multi-carrier-based testing
A device under test (DUT) may be connected to test equipment. The test equipment may include a multi-carrier signal generator and a host computer. The signal...
US-8,437,602 Information processing apparatus and program
An information processing apparatus is provided that includes a control unit to execute an operating system and selectively output a first video signal or both...
US-8,437,600 Television broadcast receiving/recording device
Disclosed is a television broadcast receiving/recording device that receives a digital broadcast signal or an analogue broadcast signal, and outputs and records...
US-8,437,485 Method and device for improved sound field rendering accuracy within a preferred listening area
A method and a device for sound field reproduction from a first audio input signal uses a plurality of loudspeakers for synthesizing a sound field within a...
US-8,437,484 Switching circuit and electronic device using the same
An electronic device includes an audio power amplifier used to output a left and a right channel audio signal, an earphone jack assembly, and a switching...
US-8,437,483 Active snubber for improving stability of headphone amplifiers
Audio amplifiers, particularly those employed with headphones, use snubbers to suppress or snub signals within a particular frequency range. Conventional...
US-8,437,482 Method, apparatus and computer program for calculating and adjusting the perceived loudness of an audio signal
One or a combination of two or more specific loudness model functions selected from a group of two or more of such functions are employed in calculating the...
US-8,437,481 Adapter for connecting accessories to an electronic device
Users with headsets may share an electronic device such as a portable computer or handheld device. The electronic device may have a connector such as an audio...
US-8,437,480 Adaptive loudness levelling for digital audio signals
A time-domain method of adaptively levelling the loudness of a digital audio signal is proposed. It selects a proper frequency weighting curve to relate the...
US-8,437,479 Calibrated digital headset and audiometric test methods therewith
A digital headset system for use in audiometric testing. The headset system includes a stored calibration reference relating the exact frequency and volume...
US-8,437,478 Systems and methods for improved over-current clipping
Systems and methods for implementing over-current protection include reducing a clip level while an over-current condition is being detected. Once the...
US-8,436,943 System and method for automated audio visual system control
A system and method are provided for automating control of a plurality of video displays coupled to a plurality of video sources through a switchable network....
US-8,436,939 AV delay measurement and correction via signature curves
Embodiments of the present invention provide systems and methods for non-invasive, "in-service" AV delay detection and correction. These systems and methods do...
US-8,436,938 Device and method for receiving data transmitted by means of an asynchronous data transmission technique
A device is described for receiving data transmitted using asynchronous data transmission technology, in particular audio and video data, which receives a clock...
US-8,436,901 Field monitoring system using a mobile terminal and method thereof
A field monitoring system using a mobile terminal includes at least one mobile terminal which transmits situation information including video information, audio...
US-8,436,683 High efficiency audio amplifier
An audio amplifier circuit is described which comprises an operational amplifier. The operational amplifier receives an audio input signal and provides an...
US-8,434,122 Device for broadcasting audio and video data
The invention relates to a device for delivering audio and video data. In such a device, the audio/video data travel together and are compressed along with the...
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...
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