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Searching: audio signal





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Patent # Description
US-8,630,426 Howling suppression using echo cancellation
A method for reducing howling in a communication system containing collocated mobile devices is presented. In a transmitter, an audio signal is received at a...
US-8,630,423 System and method for testing the speaker and microphone of a communication device
A method for testing a speaker (212) and microphone (216) of a communication device (110) is provided. The method includes playing a first audio signal through...
US-8,630,208 Muting of communication session participants
In general, this disclosure describes techniques for performing two-way muting of participant communication devices in a real-time communication session. An...
US-8,629,618 Backup lighting apparatus
A backup lighting apparatus includes a light housing having a conductive base selectively connected to a light socket and a bulb portion extending upwardly...
US-8,629,580 Audio accessory type detection and connector pin signal assignment
An electronic audio host device has an audio accessory connector with multiple pins. An ultrasonic test signal source has an output coupled to a first pin of...
US-8,626,517 Simultaneous time-domain and frequency-domain noise shaping for TDAC transforms
A frequency-domain noise shaping method and device interpolates a spectral shape and a time-domain envelope of a quantization noise in a windowed and...
US-8,626,516 Method and system for dynamic range control in an audio processing system
Methods and systems for dynamic range control in an audio processing system are disclosed and may include controlling a dynamic range of an audio signal by...
US-8,626,511 Multi-dimensional disambiguation of voice commands
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for processing voice commands. In one aspect, a method...
US-8,626,504 Extracting features of audio signal content to provide reliable identification of the signals
Signatures that can be used to identify video and audio content are generated from the content by generating measures of dissimilarity between features of...
US-8,626,501 Encoding apparatus, encoding method, decoding apparatus, decoding method, and program
An encoding apparatus includes a time-frequency transform unit that performs a time-frequency transform on an audio signal, a normalization unit that normalizes...
US-8,626,498 Voice activity detection based on plural voice activity detectors
A voice activity detection (VAD) system includes a first voice activity detector, a second voice activity detector and control logic. The first voice activity...
US-8,626,325 Audio device and method for appending identification data into audio signals
An audio device includes a processor, a storage unit, an audio processing module, a silence detection circuit, a condition determining circuit, a direct current...
US-8,626,321 Processing audio input signals
A method of processing an audio input signal represented as digital samples to produce a stereo output signal (having a left field and a right field) such that...
US-8,625,829 Partially implantable hearing aid
A partially implantable hearing aid is provided, comprising an external audio signal unit to be worn at least in part in a user's ear canal, an implantable unit...
US-8,625,825 Electrostatic speaker
An electrostatic speaker including a frame; a first electrode installed at a first end of the frame; a second electrode installed at a second end of the frame...
US-8,625,821 Method and apparatus for outputting audio signal
A method of outputting an audio signal includes receiving an audio signal; generating a carrier waves having phases differing from each other; generating...
US-8,625,820 Amplifier circuit audio circuit and electronic device
An amplifier circuit which, includes a first input for receiving a first input signal and a second input for receiving a second input signal. A first amplifier...
US-8,625,813 Asymmetric polynomial psychoacoustic bass enhancement
Psychoacoustic bass audio signal enhancement can be accomplished using a monotonic, asymmetric polynomial distortion. A non-linear process applies a monotonic,...
US-8,625,810 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 down-mix signal and spatial...
US-8,625,808 Methods and apparatuses for encoding and decoding object-based audio signals
Provided are an audio encoding method and apparatus and an audio decoding method and apparatus in which audio signals can be encoded or decoded so that sound...
US-8,625,767 Conference bridge audio quality diagnostic and self configuration system and method
A conference diagnosis system can correlate information about a current teleconference with information about past conferences to make an intelligent assessment...
US-8,624,975 Audio module for a video surveillance system, video surveillance system and method for keeping a plurality of...
The present invention refers to an audio module for a video surveillance system, a video surveillance system and a method for keeping a plurality of locations...
US-8,624,743 Long distance pet communication system with wireless voice transmitter
The present invention is a system for communicating a voice signal or audio message initiated over potentially great distances and deliverable to an unattended...
US-8,624,733 Device for electronic access control with integrated surveillance
Described is a device for electronic access control (EAC) and surveillance. The device includes an EAC module and an imager integrated in a single unit. The EAC...
US-8,624,602 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-8,622,919 Apparatus, method, and computer program for detecting a physiological measurement from a physiological sound signal
An apparatus is disclosed, comprising a speaker suitable to be applied at a user's ear and enabled to be supplied with an audio signal for rendering; a...
US-8,622,831 Responsive cutscenes in video games
A determination is made that a player's avatar has performed an action while an audio signal representing a narrative of a non-player character is being...
US-8,621,003 Enhanced application-layer multicast for peer-to-peer conferencing
An application-layer multicast-based (ALM-based), peer-to-peer conferencing system is disclosed that leverages the differing capabilities of the participating...
US-8,620,673 Audio decoding method and audio decoder
Embodiments of the present invention disclose an audio decoding method, including: determining that bitstreams to be decoded are monophony coding layer and...
US-8,620,670 Automatic realtime speech impairment correction
Automatic correcting of user's speech impairment in speech may include obtaining the audio signal of a given user's speech, and analyzing the obtained audio...
US-8,620,660 Very low bit rate signal coder and decoder
Improved oscillator-based source modeling methods for estimating model parameters, for evaluating model quality for restoring the input from the model...
US-8,620,653 Mute control in audio endpoints
Architecture that uses near-end speech detection and far-end energy level detection to notify a user when a local microphone and/or speaker that the user is...
US-8,620,648 Audio encoding device and audio encoding method
An audio encoding device which can improve encoding performance while performing division search on an algebraic codebook in an audio encoding. In a distortion...
US-8,620,646 System and method for tracking sound pitch across an audio signal using harmonic envelope
A system and method may be configured to analyze audio information derived from an audio signal. The system and method may track sound pitch across the audio...
US-8,620,645 Non-causal postfilter
A decoder arrangement comprising a receiver input for parameters of frame-based coded signals and a decoder arranged to provide frames of decoded audio signals...
US-8,620,644 Encoder-assisted frame loss concealment techniques for audio coding
Encoder-assisted frame loss concealment (FLC) techniques for decoding audio signals are described. A decoder may discard an erroneous frame of an audio signal...
US-8,620,626 Comparison of data signals using characteristic electronic thumbprints extracted therefrom
A characteristic thumbprint is extracted from a data signal, the thumbprint based on statistics relating to the data signal. The data signal can be compared...
US-8,620,466 Method for determining a point in time within an audio signal
A method for determining a point in time within an audio signal, the audio signal having been transmitted from a broadcast station to a client and to a server,...
US-8,620,389 Voice control of multimedia and communications devices
A method for operating a communications device can include receiving a plurality of spoken commands uttered by a user, the plurality of spoken commands...
US-8,620,268 Secure system for programming electronically controlled locking devices by means of encrypted acoustic...
The invention relates to a system implementing a mobile telephone (20) to which a master user authorized to program a lock (22) has access. A remote management...
US-8,620,207 System, method and apparatus for distributed content dissemination
A wireless cellular or other device to control distribution and presentation of audio, video, or combined audio and video content transmitted from a content...
US-8,620,134 Video and audio reproducing apparatus and video and audio reproducing method for reproducing video images and...
Upon receipt of an MPEG stream, a time information converter modifies the PTSs of the audio data in the stream so that the timing for outputting the audio sound...
US-8,620,133 Audio amplifier
There is provided an audio amplifier, including: an AV signal acquisition unit that acquires an AV signal; a television connection unit to which a television...
US-8,620,013 Communication system and hearing device
A communication system has a wireless transmitter and a wireless receiver. The transmitter is built into a hearing device to be worn at one or both ears of an...
US-8,620,012 Apparatus and method for providing stereo effect in portable terminal
An apparatus and a method for providing a stereo effect when playing an audio file at a portable terminal are provided. The apparatus includes a component...
US-8,620,008 Method and an apparatus for processing an audio signal
An apparatus for processing an audio signal and method thereof, comprising receiving a downmix signal comprising at least one normal object signal, and...
US-8,620,004 Electronic device, electronic system, and method for processing signals from an audio accessory thereof
An electronic device includes an audio jack, a power supply unit, a determining circuit, and an executing circuit. The audio jack may be arranged for...
US-8,620,003 Embedded audio system in distributed acoustic sources
The invention converts non audio systems into distributed audio sources for active noise control solutions. The system transforms non acoustic structures into...
US-8,620,000 Apparatus and method for controlling audio output, and mobile terminal system using the same
An audio output controlling apparatus and method, and a mobile terminal system using the same control settings of an audio out port according to whether an...
US-8,619,999 Audio decoding method and apparatus
A decoded sound analysis unit (104) calculates, regarding the frequency-region stereo signals L(b) and R(b) decoded by the PS decoding unit (103), a second...
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