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Searching: audio signal





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Patent # Description
US-8,649,727 Portable karaoke system, karaoke method and application program for the same
A portable karaoke system, a karaoke method and an application program for the same are disclosed. The karaoke system comprises a receiving end karaoke...
US-8,649,664 Audio and/or video generation apparatus and method of generating audio and /or video signals
An audio and/or video generation apparatus is arranged in operation to generate audio and/or video signals representative of an audio and/or video source has a...
US-8,649,540 Electronic earplug
Electronic earplugs, methods of enhancing and/or attenuating sound using electronic earplugs, and kits including electronic earplugs are provided. Certain...
US-8,649,534 Audio interface device and method
The invention provides an audio interface device and method utilizing a single audio jack connector for plugging into a three-wire analog microphone or a...
US-8,649,528 Microphone unit with internal A/D converter
The present invention relates to a microphone assembly comprising a microphone assembly casing having a sound inlet port and a transducer for receiving acoustic...
US-8,649,526 Noise reduction circuit and method therefor
Noise cancellation is effected for audio devices. In connection with various embodiments, a forward leakage transfer function is determined using a signal...
US-8,649,523 Methods and systems using a compensation signal to reduce audio decoding errors at block boundaries
Methods, systems and computer-readable medium reduce and/or eliminate errors in coding/decoding of streamed audio due to resetting of decoder state values based...
US-8,649,465 Methods and apparatuses for adaptive clock reconstruction and decoding in audio frequency communication
The invention relates to methods for adaptive clock reconstruction and decoding in audio frequency. The method includes the steps of: receiving a modulated...
US-8,648,596 Method of and apparatus for analysis of the composition of a sample by electron spin resonance (ESR)...
Described is an electron spin resonance (ESR) spectrometer comprising a miniaturized radio-frequency (RF) microwave cavity resonator. The miniaturized RF...
US-8,647,198 Image display system, illumination system, information processing device, and storage medium having control...
An illumination system includes an information processing device capable of communicating with a server via a network and an illumination device capable of...
US-8,645,144 Audio signal shaping for playback by audio devices
A technique is provided for limiting distortion of an audio signal being processed for playback by an audio device. In accordance with the technique, the audio...
US-8,645,133 Adaptation of voice activity detection parameters based on encoding modes
Encoding audio signals with selecting an encoding mode for encoding the signal categorizing the signal into active segments having voice activity and non-active...
US-8,645,132 Truly handsfree speech recognition in high noise environments
Embodiments of the present invention improve content manipulation systems and methods using speech recognition. In one embodiment, the present invention...
US-8,645,131 Detecting segments of speech from an audio stream
The disclosure describes a speech detection system for detecting one or more desired speech segments in an audio stream. The speech detection system includes an...
US-8,645,128 Determining pitch dynamics of an audio signal
A first-pitch metric function based on a first audio sample and a second pitch-metric function based on a second audio sample may be determined. The first and...
US-8,645,126 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-8,644,972 Temporal and spatial shaping of multi-channel audio signals
A selected channel of a multi-channel signal which is represented by frames composed from sampling values having a high time resolution can be encoded with...
US-8,644,970 Method and an apparatus for processing an audio signal
A method of processing an audio signal is disclosed. The present invention includes receiving downmix information of at least one downmixed object signal,...
US-8,644,888 Wireless headset switching system
A wireless headset system including a switching unit having a detection circuit coupled to a wireless adapter. The detection circuit provides a first output...
US-8,644,780 Gain control circuit, FM receiver and computer program product
The present invention provides a gain control circuit for an FM receiver that can reduce a reproduced audio output according to the magnitude of the noise...
US-8,644,539 Hearing aid having improved RF immunity to RF electromagnetic interference produced from a wireless...
A hearing aid has improved immunity to RF electromagnetic interference produced from wireless communications devices. A microphone receives audio signals from...
US-8,644,531 Information processing system and information processing method
An information processing system includes a display, a display sensor that detects a movement or a rotation of the display, a transducer unit as an earphone...
US-8,644,526 Audio signal decoding device and balance adjustment method for audio signal decoding device
Fluctuation in decoded signal localization is suppressed to maintain the feel of stereo. A selection unit selects balance parameters when the balance parameters...
US-8,644,522 Method and system for modeling external volume changes within an acoustic echo canceller
A method and system are provided in which a device, such as an acoustic echo canceller, may reduce the residual echo that may be heard at the far end of a...
US-8,644,517 System and method for automatic disabling and enabling of an acoustic beamformer
A system and method that automatically disables and/or enables an acoustic beamformer is described herein. The system and method automatically generates an...
US-8,644,478 System and method for providing telephonic access to an audio stream
System for providing telephonic access to an audio stream comprises an audio transmitting apparatus for transmitting the audio stream from its audio source...
US-8,644,477 Digital Microphone Automixer
The invention provides a digital automixer system that includes a master processing unit and at least one non-master processing unit that are interconnected....
US-8,644,378 Method and apparatus for de-spreading a spread-spectrum audio/video signal
A digital video communication device is provided. The digital video communication device includes a transmitter providing a spread-spectrum video signal...
US-8,643,510 Vehicle key
A vehicle key for radio communication with a vehicle. The vehicle key has a radio transmitter for transmitting radio signals to the vehicle. The vehicle key has...
US-8,643,434 Adjustable gain audio power amplifying circuit
An adjustable gain audio power amplifying circuit includes an input unit, an audio amplifying unit connected to the input unit, a gain adjusting unit connected...
US-8,643,359 Method and apparatus to measure differential phase and frequency modulation distortions for audio equipment
A testing method or apparatus utilizes multiple frequencies applied to a device under test for measuring newly discovered frequency modulation effects. An...
US-RE44,741 Apparatus and method for processing audio signals recorded on a medium
This invention relates to a karaoke CD format and a device for controlling audio signals utilizing the karaoke CD format which provides a user with selective...
US-8,639,841 Interface circuit for transmitting and receiving digital signals between devices
A video signal and an audio signal are TMDS transmitted from a source device to a sink device. Through a reserved line and a HPD line provided separately from a...
US-8,639,516 User-specific noise suppression for voice quality improvements
Systems, methods, and devices for user-specific noise suppression are provided. For example, when a voice-related feature of an electronic device is in use, the...
US-8,639,514 Method and apparatus for accessing information identified from a broadcast audio signal
A method and device for accessing information identified from a broadcast audio signal receives a broadcast audio signal from a receiver such as a radio or...
US-8,639,501 Method and arrangement for enhancing spatial audio signals
In a method of enhancing spatial audio signals, receiving (S10) an ACELP coded signal comprising a plurality of blocks. For each received block estimating (S20)...
US-8,639,500 Method, medium, and apparatus with bandwidth extension encoding and/or decoding
A method, medium, and apparatus encoding and/or decoding audio signals. By encoding and/or decoding a high-frequency signal using an excitation signal extracted...
US-8,639,499 Formant aided noise cancellation using multiple microphones
A noise cancellation device includes a plurality of first computation modules, a formant detection module, a direction of arrival module and a beamformer. The...
US-8,639,498 Apparatus and method for coding and decoding multi object audio signal with multi channel
Provided are an apparatus and method for coding and decoding a multi object audio signal with multi channel. The apparatus includes: a multi channel encoding...
US-8,639,368 Method and an apparatus for processing an audio signal
An apparatus for processing an audio signal and method thereof are disclosed. The method comprises receiving a downmix signal, object information indicating...
US-8,639,359 Electrical nerve stimulation with broad band low frequency filter
A system and method of generating electrode stimulation signals for an implanted multi-channel electrode array of a cochlear implant includes processing an...
US-8,639,300 Method and apparatus for maintaining transmit audio in a half duplex system
A method for maintaining transmit audio quality under harsh environmental conditions, the method includes receiving audio signals into a microphone of a...
US-8,639,094 System and method for remote control of live TV capability for TV screens
A system for remote control of live TV capability for TV screens, the system comprising satellite feeds (2003) broadcasting means (2002, 2004), a set top box...
US-8,639,092 Audio copy protection system
An apparatus for applying an anti-copy protection signal for use with switchable head recorders, such as Video Hi-Fi recorders, is described. A high frequency...
US-8,639,084 Recording medium containing supplementary service information for audio/video contents, and method and...
The present invention relates to method and apparatus of providing supplementary service information for A/V contents written in a recording medium. This method...
US-8,638,962 Method to reduce feedback in hearing aids
Disclosed is a method of reducing feedback in a hearing aid adapted to be worn by a user, the method comprising the step of: receiving an audio input signal in...
US-8,638,961 Hearing aid algorithms
The invention relates to a method of operating an audio processing device. The invention further relates to an audio processing device, to a software program...
US-8,638,960 Hearing aid with improved localization
A BTE hearing aid includes a BTE hearing aid housing, at least one BTE sound input transducer, a processor configured to generate a hearing loss compensated...
US-8,638,954 Audio signal processing apparatus and speaker apparatus
An audio signal processing apparatus includes: a first filtering unit which outputs an audio signal while attenuating frequency components except for preset...
US-8,638,953 Systems and methods for generating phantom bass
In many audio playback systems, frequencies below a given cut off frequency are suppressed either due to speaker constraints or safety constraints. For example,...
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