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Searching: audio signal





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Patent # Description
US-7,974,845 Stuttering treatment methods and apparatus
Stuttering treatment methods and apparatus which utilize removable oral-based appliances having actuators which are attached, adhered, or otherwise embedded...
US-7,974,840 Method and apparatus for encoding/decoding MPEG-4 BSAC audio bitstream having ancillary information
A method of and an apparatus for encoding/decoding an MPEG-4 bit sliced arithmetic coding (BSAC) audio bitstream having ancillary information. A time domain...
US-7,974,839 Method, medium, and apparatus encoding scalable wideband audio signal
Provided is a method and apparatus for encoding a scalable wideband audio signal, the method including: filtering a voiced signal by performing linear...
US-7,974,838 System and method for pitch adjusting vocals
A system and method to assist a singer or other user. An audio source is processed to extract the lead vocals from the audio signal. This vocal signal is fed to...
US-7,974,837 Audio encoding apparatus, audio decoding apparatus, and audio encoded information transmitting apparatus
The encoding apparatus includes an MDCT unit which transforms an inputted audio signal into a frequency parameter, for every predetermined time-frequency...
US-7,974,717 Customizing soundtracks
A system and method for replacing all or part of the original audio of a digital program with other audio enables a user to customize a digital program...
US-7,974,716 Preprogrammed hearing assistance device with program selection based on patient usage
A programmable apparatus improves perception of sound by a person. In one embodiment, the apparatus includes a processor, digital-to-analog converter, audio...
US-7,974,715 Audio/video transcription system
A computer based digital transcription system employs audio and video inputs of a court proceeding, and stores the digital signals in a memory in the form of...
US-7,974,713 Temporal and spatial shaping of multi-channel audio signals
A selected channel of a multi-channel signal represented by frames composed from sampling values having a high time resolution is provided that can be encoded...
US-7,974,582 Mobile wireless communications device having improved RF immunity of audio transducers to electromagnetic...
A mobile wireless communications device includes a housing and circuit board carried by the housing and having radio frequency (RF) circuitry and a processor...
US-7,974,439 Embedding hidden auxiliary information in media
Methods and apparatus for steganographically embedding information in media signals (e.g., audio and video) are provided. One claim recites a method of enabling...
US-7,974,425 Sound system and method of sound reproduction
A sound reproduction system comprises a left and right speakers located in close proximity, and a sound processor which provides audio signals to the pair of...
US-7,974,424 Speaker array system
A speaker array system for outputting, with a simplified construction, sounds audible with a nearly uniform sound volume within an arbitrarily set area. The...
US-7,974,421 Audio signal processing method and related device
An audio signal processing method includes: controlling the volume of a digital audio signal according to a latest value of an adaptive gain value which is...
US-7,974,420 Mixed audio separation apparatus
A mixed audio separation system (100) which separates a specific audio from among a mixed audio (S100) includes a local frequency information generation unit...
US-7,974,419 Pop sound prevention module and speaker apparatus thereof
A pop sound prevention module and a speaker apparatus thereof are provided. The pop sound prevention module is used for preventing the speaker apparatus...
US-7,974,417 Multi-channel bass management
A multi-channel audio system including first combining circuitry, for combining a first spectral band of a first plurality channels to provide a first bass...
US-7,974,411 Method for protecting audio content
Techniques for protecting information in an audio file are provided. The techniques include obtaining an audio file, detecting information bearing one or more...
US-7,974,287 Method and apparatus for processing an audio signal
A method for processing an audio signal, comprising the steps of extracting an ancillary signal for generating the audio signal, an extension signal included in...
US-7,974,255 Method and apparatus for multi-stream transmission with time and frequency diversity in an orthogonal frequency...
A method and apparatus increase the time and frequency diversity of a multi-stream signal in a DAB system. A plurality of audio streams are divided into four...
US-7,974,251 Wireless networks for vehicles
A system for a vehicle including a first user interface to generate a first command to receive audio/video data from a server in the vehicle, a first wireless...
US-7,973,857 Teleconference group formation using context information
Teleconferencing and, in particular, distributed teleconferencing may use methods and systems for location grouping to reduce feedback and other audio...
US-7,973,598 Audio power amplifier and a pre-amplifier thereof
An audio power amplifier includes a pre-amplifier, an error amplifier, a comparator, a bridge circuit, and a feedback circuit, in which the gain of the...
US-7,973,512 Mobile telephone charger with promotional audio output
A mobile telephone charger capable of reproducing a promotional audio tune is provided comprising a housing, a power input connector attached to the housing for...
US-7,971,108 Modem-assisted bit error concealment for audio communications systems
Systems and methods are described for managing bit errors present in a series of encoded bits representative of a portion of an audio signal, wherein the series...
US-7,970,604 System and method for switching between a first filter and a second filter for a received audio signal
System, method and computer-readable medium are disclosed for using filters signal processing. The system includes a module that receives information regarding...
US-7,970,564 Enhancement techniques for blind source separation (BSS)
This disclosure describes signal processing techniques that can improve the performance of blind source separation (BSS) techniques. In particular, the...
US-7,970,391 Managing availability status in a communications network
A system and a method are disclosed for a presence engine and a method of operating a presence engine for encoding or decoding availability status into a signal...
US-7,970,342 Digital music player accessory with digital communication capability
An accessory for a digital music player establishes bidirectional communications between the digital music player and a remote receiver. The bidirectional...
US-7,970,153 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...
US-7,970,147 Video game controller with noise canceling logic
A method for reducing noise disturbance associated with an audio signal received through a microphone is provided. The method initiates with magnifying a noise...
US-7,970,144 Extracting and modifying a panned source for enhancement and upmix of audio signals
Modifying a panned source in an audio signal comprising a plurality of channel signals is disclosed. Portions associated with the panned source are identified...
US-7,970,072 Method and apparatus for processing a signal
The present invention relates to a method and apparatus for processing a signal. An object of the present invention devised to solve the problem lies on a...
US-7,970,049 Method and apparatus for encoding video in conjunction with a host processor
An external video device includes inputs for receiving an audio video signal from a source. The device includes in one enclosure audio and video processor...
US-7,970,019 Low latency digital audio over packet switched networks
Method and Apparatus for delivering audio signals from a source node to a destination node on a network. The apparatus uses a number of switches that transmit...
US-7,970,016 Systems and methods for transmission and reception of data including frequency and channel code selection
Systems and methods are disclosed for wireless transmission and reception of data including processing and buffering features. According to one or more...
US-7,969,472 Automatic camera steering control and video conferencing
An automatic camera steering control for directing video conferences including a communicator with a microphone and a voice activated LED emitter. Cameras...
US-7,969,287 Haptic effect control system
A haptic effect control system includes: a user interface adapted to receive a user-provided input and transmit a control signal representing the user-provided...
US-7,966,641 User identification using Bluetooth and audio ranging
In certain embodiments, a method of automatically changing an attribute defining operation of a television system involves determining that a short range radio...
US-7,966,190 Apparatus and method for processing an audio signal using linear prediction
In one embodiment, a channel in a frame of the audio signal is subdivided into a plurality of blocks, and at least two of the blocks have different lengths. An...
US-7,966,189 Wearable computer system and modes of operating the system
A wearable computer system has a user interface with at least an audio-only mode of operating, and that is natural in appearance and facilitates natural...
US-7,966,175 Fast lattice vector quantization
Methods, devices, and systems for coding and decoding audio are disclosed. Digital samples of an audio signal are transformed from the time domain to the...
US-7,966,045 WLAN communications system
A wireless local area network audio and video communication system with mobile units is provided, wherein mobile units are operated in a power saving mode and...
US-7,966,038 Wireless audio transfer system, wireless microphone, audio transmitting apparatus, audio receiving apparatus,...
Disclosed is a wireless audio transfer system. The wireless audio transfer system includes an audio transmitting apparatus including a microphone and a...
US-7,965,920 Video and audio recording device
A video and audio recording device includes: a storage, adapted to store condensed information; a specifier, operable to specify the condensed information...
US-7,965,854 Band-limited adaptive feedback canceller for hearing aids
An improved method for adaptively cancelling acoustic feedback in hearing aids and other audio amplification devices. Feedback cancellation is limited to a...
US-7,965,853 Band-limited adaptive feedback canceller for hearing aids
An improved method for adaptively cancelling acoustic feedback in hearing aids and other audio amplification devices. Feedback cancellation is limited to a...
US-7,965,852 Audio signal processing method and apparatus
In case of carrying out a correction process with respect to a signal of a specific frequency band in an inputted audio signal, an output level is raised...
US-7,965,849 Multichannel spectral mapping audio apparatus and method
A method and circuit for deriving a set of multichannel audio signals from a conventional monaural or stereo audio signal uses an auxiliary multichannel...
US-7,965,524 Method and apparatus to reduce audio frequencies in a switching power supply
A controller for use in a power supply regulator is disclosed. One controller includes a feedback circuit coupled to generate a feedback current signal that...
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