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Searching: audio signal





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Patent # Description
US-8,615,391 Method and apparatus to extract important spectral component from audio signal and low bit-rate audio signal...
An method and apparatus to extract an audio signal having an important spectral component (ISC) and a low bit-rate audio signal coding/decoding method using the...
US-8,615,390 Low-delay transform coding using weighting windows
The invention relates to transform coding/decoding of a digital audio signal represented by a succession of frames, using windows of different lengths. For the...
US-8,615,316 Method and an apparatus for processing an audio signal
An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes receiving the audio signal and preset information;...
US-8,615,095 Automatic volume control for audio signals
A technique is provided for automatically adjusting the volume, or magnitude, of an audio signal. The technique includes calculating an average power associated...
US-8,615,094 Automatic level control circuit
A variable gain amplifier amplifies an input audio signal. A first control unit monitors the level of the input audio signal, and sets the gain of the variable...
US-8,615,093 Apparatus and method for processing audio signal
An apparatus for processing an audio input signal is provided and includes an audio processing circuit and an audio compressing circuit. The audio processing...
US-8,615,091 System for accomplishing bi-directional audio data and control communications
A system for accomplishing bi-directional digital audio data and control communications. There is a host end that includes a host transceiver, a host digital...
US-8,615,088 Method and an apparatus for processing an audio signal using preset matrix for controlling gain or panning
An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes an audio signal receiving unit receiving the audio...
US-8,614,734 Techniques for detecting a display device
Techniques to detect a display device are described. An apparatus may include a video camera operative to receive video information for an image, and a...
US-8,614,632 Method of and apparatus for controlling a source of light in accordance in a source of sound
This device, by its organization and operation, processes sound, usually music. It provides output voltages, for driving lights, which is proportionally...
US-8,612,239 Apparatus and method for coding audio data based on input signal distribution characteristics of each channel
Provided is an audio coding apparatus and method that can selectively apply a operation mode of a coding module for stereo or multi-channel representation...
US-8,612,238 Apparatus and method for encoding/decoding signal
An encoding method and apparatus and a decoding method and apparatus are provided. The decoding method includes extracting a three-dimensional (3D) down-mix...
US-8,612,237 Method and apparatus for determining audio spatial quality
Techniques for evaluating the audio quality of an audio test signal are disclosed. These techniques provide a quality analysis that takes into account spatial...
US-8,612,236 Method and device for noise suppression in a decoded audio signal
In one aspect, a noise suppression process for a decoded signal comprising a first decoded signal portion and a second decoded signal portion is provided. A...
US-8,612,220 Quantization after linear transformation combining the audio signals of a sound scene, and related coder
The invention relates to a method for quantifying components, wherein certain components are each determined based on a plurality of audio signals and can be...
US-8,612,217 Method and system for noise reduction
Techniques pertaining to noise reduction are disclosed. According to one aspect of the present invention, noise in an audio signal is effectively reduced and a...
US-8,612,216 Method and arrangements for audio signal encoding
To form an audio signal, frequency components of the audio signal which are allotted to a first subband are formed by means of a subband decoder using supplied...
US-8,612,215 Method and apparatus to extract important frequency component of audio signal and method and apparatus to...
A method and apparatus to extract an important frequency component of an audio signal and a method and apparatus to encode and/or decode an audio signal by...
US-8,612,214 Apparatus and a method for generating bandwidth extension output data
An apparatus for generating bandwidth extension output data for an audio signal has a noise floor measurer, a signal energy characterizer and a processor. The...
US-8,612,034 Printed circuit board
A printed circuit board includes a first signal layer, a first ground layer, a second signal layer, a power layer, a second ground layer, and a third signal...
US-8,612,033 Method for executing menu in mobile terminal and mobile terminal thereof
A method for executing a menu in a mobile terminal and a mobile terminal thereof are disclosed, wherein the method includes displaying a first screen on a...
US-8,611,589 Method and apparatus for embedding auxiliary information within original data
This patent application is generally related to watermarking and steganography. One claim recites a method of transmarking an audio or video signal previously...
US-8,611,583 Compact coaxial crossover-free loudspeaker
A loudspeaker assembly that converts electrical signal into sound waves in the full spectral range of an audio voltage. The loudspeaker assembly includes: a...
US-8,611,561 First stage audio amplifier with clamping circuit
An external audio signal is input to an input terminal which is connected to the first terminal of a first resistor. The first terminal of a second resistor is...
US-8,611,557 Method and apparatus for audio processing
A method and apparatus for introducing a time-varying time delay randomly into the individual reproduction channels of a sound recording, two in the case of...
US-8,611,550 Apparatus for determining a converted spatial audio signal
An apparatus for determining a converted spatial audio signal, the converted spatial audio signal having an omnidirectional audio component and at least one...
US-8,611,549 Detection circuit for audio device
A detection circuit of an electronic device, includes a jack circuit, a first switch, a second switch, and a detection end. The jack circuit includes a type...
US-8,611,547 Apparatus and method for restoring multi-channel audio signal using HE-AAC decoder and MPEG surround decoder
Provided is a method for controlling synchronizing downmix signals and MPEG surround side information signals by controlling a delay according to the kind of...
US-8,611,546 Method and apparatus for remotely switching noise reduction modes in a radio system
A radio configured to dynamically control cancellation of undesired signals in an audio stream. The radio includes a noise cancellation processor configured to...
US-8,611,545 Surround generation apparatus
A surround system includes a decoder that decodes an encoded audio data stream, a decorrelation unit that receives and decorrelates stereo signals decoded by...
US-8,611,520 Audio conference platform with dynamic speech detection threshold
The present invention comprises a method for audio/video conferencing. In a preferred embodiment, the method comprises using a dynamic threshold value to...
US-8,608,638 Methods and systems for treating tinnitus
Methods and systems for treating tinnitus are provided. Some embodiments include a method of providing a primary audio signal having a primary peak portion...
US-8,608,621 Audio pacing device
There is provided an audio pacing device including a sensing unit, such as heart rate monitoring unit, to obtain a parameter, such as heart-beat rate (pulse),...
US-8,607,288 Interactive Internet browser based media broadcast
A method of providing one-way video transmission and corresponding interactive two-audio communication to remote recipients via a world wide computer network...
US-8,607,283 Systems, methods and computer readable media for instant multi-channel video content browsing in digital video...
Techniques for delivery and presentation/display of audio-visual signals over electronic communications network channels are disclosed herein. In an exemplary...
US-8,606,586 Bandwidth extension encoder for encoding an audio signal using a window controller
A bandwidth extension encoder for encoding an audio signal has a signal analyzer, a core encoder, a parameter calculator, and a window controller. The audio...
US-8,606,578 Method and apparatus for improving memory locality for real-time speech recognition
According to some embodiments, a method and apparatus are provided to buffer N audio frames of a plurality of audio frames associated with an audio signal,...
US-8,606,573 Voice recognition improved accuracy in mobile environments
VoIP phones according to the present invention include a microphone, which may be internal or external, and allow the user to communicate unobtrusively, check...
US-8,606,572 Noise cancellation device for communications in high noise environments
This invention presents a noise cancellation device for improved personal face-to-face and radio communications in high noise environments. The device comprises...
US-8,606,571 Spatial selectivity noise reduction tradeoff for multi-microphone systems
The present technology provides noise reduction of an acoustic signal using a configurable classification threshold which provides a sophisticated level of...
US-8,606,569 Automatic determination of multimedia and voice signals
The present invention relates to means and methods of classifying speech and music signals in voice communication systems, devices, telephones, and methods, and...
US-8,606,560 Automatic simultaneous interpertation system
An interpretation system that includes an optical or audio acquisition device for acquiring a sentence written or spoke in a source language and an audio...
US-8,606,385 Method for qualitative evaluation of a digital audio signal
The invention relates to a method of qualitatively evaluating a digital audio signal. It calculates a quality indicator consisting of a vector associated with...
US-8,606,249 Methods and systems for enhancing audio quality during teleconferencing
Provided are systems and methods for improving audio signal quality during teleconferencing. Multiple local devices equipped with microphones may be connected...
US-8,605,931 Combined headphone set and portable speaker assembly
A combined headphone set including a speaker assembly. The headphone set includes a headband having a speaker headphone on opposing ends of the headband. Each...
US-8,605,921 Loudspeaker positions select infrastructure signal
For operating a multi-loudspeaker configuration which is audio-driven from a multi-audio-channel source system, an appropriate audio channel from the...
US-8,605,915 Class G audio amplifiers and associated methods of operation
The present technology is directed to class G audio amplifiers and the associated methods of operation. In one embodiment, a class G audio amplifier includes an...
US-8,605,914 Nonlinear filter for separation of center sounds in stereophonic audio
In accordance with some embodiments of the present invention there is provided a system, a method and a circuit for processing a stereo audio signal. According...
US-8,605,911 Efficient and scalable parametric stereo coding for low bitrate audio coding applications
The present invention provides improvements to prior art audio codecs that generate a stereo-illusion through post-processing of a received mono signal. These...
US-8,605,910 Device and a method for determining a component signal with high accuracy
A device for determining a component signal for a WFS system includes a provider for providing WFS parameters, a WFS parameter interpolator, and an audio signal...
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