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Searching: audio signal





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Patent # Description
US-7,961,949 Extracting multiple identifiers from audio and video content
The disclosure concerns content identification, such as extracting identifying information from content itself. One combination described in the disclosure is a...
US-7,961,895 Audio interface device and method
The invention provides an audio interface device and method to acquire audio signal from either an analog or digital microphone through a common connector. The...
US-7,961,892 Apparatus and method for monitoring speaker cone displacement in an audio speaker
An apparatus for monitoring speaker cone displacement in an audio speaker includes: (a) an electromagnetic coil structure; (b) a ferrous core structure; the...
US-7,961,891 System and method of audio testing of acoustic devices
A system and method of testing the audio performance of an acoustic device is provided. To test a device microphone, an audio signal is generated, provided to...
US-7,961,890 Multi-channel hierarchical audio coding with compact side information
A parametric representation of a multi-channel audio signal describes the spatial properties of the audio signal well with compact side information when a...
US-7,961,889 Apparatus and method for processing multi-channel audio signal using space information
An apparatus for and a method of processing a multi-channel audio signal using space information. The apparatus includes: a main coding unit down mixing a...
US-7,961,888 Method and system for enhancing bass effect in audio signals
The quality of music output from audio systems is improved by simulating the effect of low frequency signals in the human ear. This thus allows listeners to...
US-7,961,881 Apparatus and methods for including codes in audio signals
Apparatus and methods for including a code having at least one code frequency component in an audio signal are provided. The abilities of various frequency...
US-7,961,792 Robust system for maintaining audio/video synchronization during playback of multimedia streams with no...
An apparatus having a first circuit, a second circuit and a third circuit. The first circuit may be configured to (i) demultiplex a multimedia stream having one...
US-7,961,571 Recording a digital signal on an information carrier comprising a first layer and a second layer
A recording method, particularly suitable for use in a digital video-camera, is described according to which a digital signal (10), deriving from the encoding...
US-7,961,255 Television functionality on a chip
A television on a chip (TVOC) system that provides a cost effective approach for providing television functionality on a single integrated circuit chip is...
US-7,960,640 Derivation of control signals from real-time overtone measurements
A system for control signal generation using detected dynamic characteristics of components of an incoming electronic signal. Fixed or adjustable bandpass...
US-7,957,977 Media program identification method and apparatus based on audio watermarking
The invention provides a method for obtaining related information about a media program containing an audio signal, comprising: embedding an audio watermark...
US-7,957,973 Audio signal interpolation method and device
An audio signal interpolation device comprises a spectral movement calculation unit which determines a spectral movement which is indicative of a difference in...
US-7,957,966 Apparatus, method, and program for sound quality correction based on identification of a speech signal and a...
According to one embodiment, a sound quality correction apparatus calculates various feature parameters for identifying the speech signal and the music signal...
US-7,957,960 Audio time scale modification using decimation-based synchronized overlap-add algorithm
A high-quality, low-complexity audio time scale modification (TSM) algorithm useful in speeding up or slowing down the playback of an encoded audio signal...
US-7,957,771 Hands-free conferencing apparatus and method for use with a wireless telephone
A hands-free teleconferencing apparatus for use with a wireless telephone for enabling multiple users to participate in a telephone call in a hands-free...
US-7,957,548 Hearing device with transfer function adjusted according to predetermined acoustic environments
A hearing device has an adjustable transfer function comprising M.gtoreq.1 sub-functions (M is an integer). A method for operating the hearing device includes...
US-7,957,544 Audio signal output control device that suppresses pop sound
The potential of a smoothing capacitor for a speaker is smoothly changed by controlling the potential with use of a PWM signal and switching between outputting...
US-7,957,542 Adaptive beamformer, sidelobe canceller, handsfree speech communication device
The adaptive beamformer unit (191) comprises: a filtered sum beamformer (107) arranged to process input audio signals (u 1, u2) from an array of respective...
US-7,957,538 Method and apparatus to decode audio matrix
A method of audio matrix decoding in which a moving sound image is restored includes decoding multichannel signals from stereo signals, extracting strengths and...
US-7,957,512 Source selection for conference bridges
The present invention provides an audio source selection process for a conference bridge. The conference bridge receives multiple audio sources and selects at...
US-7,957,243 Magnetic and optical rotating storage systems with audio monitoring
An integrated circuit (IC) for controlling a rotating data storage device comprises a drive module that is implemented by the integrated circuit and that at...
US-7,956,681 Class D amplifier having PWM circuit with look-up table
A class D amplifier includes a noise-shaping modulator, a pulse width modulator, and a pulse amplifier. The noise-shaping modulator receive a pulse code...
US-7,955,144 Banana plug with a body with a contact segment extended into an adjoining cage
The invention relates to an electrical plug connector, in particular a banana plug, having a base body (2) and having a contact pin (3) which is arranged on the...
US-7,954,126 Control system and user interface for network of input devices
Apparatus, methods, and systems for centrally and uniformly controlling the operation of a variety of devices, such as communication, consumer electronic,...
US-7,953,604 Shape and scale parameters for extended-band frequency coding
An audio encoder performs frequency extension coding that comprises determining one or more shape parameters using a displacement vector that corresponds to a...
US-7,953,595 Dual-transform coding of audio signals
Methods, devices, and systems for coding and decoding audio are disclosed. At least two transforms are applied on an audio signal, each with different transform...
US-7,953,491 Auto-referencing mixed-mode phase locked loop for audio playback applications
Audio streaming is made available throughout the signal processing path of the speech processor of a cochlear implant or other audio signal processor. Audio...
US-7,953,456 Acoustic echo reduction in mobile terminals
An electronic device includes first and second speakers, a microphone, and circuitry configured to generate first and second audio signals in response to a...
US-7,953,237 Method for operating a hearing aid device system for the binaural supply of a user
In a hearing aid device system with a hearing aid device which can be worn on or in the left ear of a user and a hearing aid device which can be worn on or in...
US-7,953,234 Audio signal output circuit and electronic apparatus outputting audio signal
A digital audio-signal output circuit is provided, which is capable of outputting an audio signal without generating pop noise. In suppressing pop noise, the...
US-7,953,196 Digital audio processing system and method
A method includes receiving first data corresponding to a first signal sampled at a first sample rate, decimating the first data to provide a second signal...
US-7,953,069 Device and method for estimating audiovisual quality impairment in packet networks
An audio and/or visual transmission quality device estimates transmission quality as perceived by a user based on observation and processing of objective...
US-7,952,961 Audio compass for motion tracking
A method for tracking motion using an audio compass is disclosed. The method comprises receiving motion sensor data indicating seismic activity recorded by at...
US-7,952,426 Digital audio amplifier and digital audio amplifying method therefor
A digital audio signal amplifier and a digital audio signal amplifying method provide safety and power efficiency by integrating a switching mode power supply...
US-7,952,412 Audio device using AC power clock reference
A clock generating apparatus for use in an electronic device, such as a radio or other audio device, which generates a clock signal based on an AC input signal...
US-7,952,014 Digital guitar system
A digital guitar system and method includes a digital guitar and a digital guitar interface device, and a method of converting a conventional guitar into a...
US-7,949,777 Communication protocol for controlling transfer of temporal data over a bus between devices in synchronization...
A communication protocol over the serial bus allows a peripheral device to control the flow of data between a host computer and the peripheral device so as to...
US-7,949,723 Real time tuner for providing graphical user interface
A unique real time tuning (RTT) process is employed for obtaining the desired optimum device parameter adjustments. The RTT parameter adjustment process is...
US-7,949,419 Method and system for controlling gain during multipath multi-rate audio processing
Methods and systems for processing audio signals are disclosed herein. Aspects of the method may comprise controlling gain during multipath, multi-rate audio...
US-7,949,149 Deriving or calculating identifying data from video signals
The present invention relates generally to processing video signals. One claim recites a system for processing a video signal. The system includes: an analyzer...
US-7,949,141 Processing audio signals with head related transfer function filters and a reverberator
A method, an apparatus, and a software product to process a plurality of input audio signals. The apparatus accepts a plurality of input signals and includes a...
US-7,949,140 Sound measuring apparatus and method, and audio signal processing apparatus
A sound measuring apparatus for measuring a sound-arrival delay time from a speaker to a microphone on the basis of a result obtained by outputting a test...
US-7,949,131 Digital security system
A system and method for processing a digital audio signal is disclosed. The system includes an input to receive a digital audio signal and a first output to...
US-7,949,125 Method and apparatus for transmitting signaling tones over a packet switched network
As part of a system and method for transmitting a signaling tone over a packet switched data (or other communication) network, an audio encoder may have a...
US-7,949,014 Apparatus and method of encoding and decoding audio signal
In one embodiment, at least first and second channels in a frame of the audio signal are independently subdivided into blocks if the first and second channels...
US-7,948,559 Method and apparatus for lipsync measurement and correction
A method and apparatus for synchronizing audio and video portions of a media program signal is disclosed. The method comprises the steps of detecting an audio...
US-7,948,558 Audio video timing measurement and synchronization
A method and apparatus for synchronizing audio and video portions of a media program signal is disclosed. In a transmitting embodiment, the method comprises the...
US-7,948,386 Electronic rodent repeller that mimics a chattering sound of a distressed rodent
A rodent repeller having an audio signal generator configured to generate a chattering sound that mimics a distressed rodent. The audio signal generator...
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