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Searching: audio signal





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Patent # Description
US-8,693,699 Method for adaptive control and equalization of electroacoustic channels
An electroacoustic channel soundfield is altered. An audio signal is applied by an electromechanical transducer to an acoustic space, causing air pressure...
US-8,693,697 Matrix encoder with improved channel separation
An encoder and encoding method for use in a surround sound system wherein at least four audio input signals representing an original sound field are encoded...
US-8,693,641 Fire alarm with integrated firefighter communications system
A fire control system may include a fire alarm control panel situated at a first location, the fire alarm control panel coupled to a first hardwire circuit. The...
US-8,693,639 Internet phone trainer
A training system is disclosed. The training system includes a server. The server includes a processor, data storage, a data input/output interface, and a voice...
US-8,693,461 Wi-Fi quality of service signaling
The transmission of signaling frames in a QoS system may be prioritized over the transmission of content frames carrying time-sensitive information. The...
US-8,692,689 Vehicle context awareness by detecting engine RPM using a motion sensor
Methods and apparatus for determining context of a mobile device are provided. In an example, provided is a method for identifying an environment of a mobile...
US-8,692,407 Power line transmission apparatus without public power system noise interference and method thereof
A power line transmission apparatus is not interfered by the noise of the public power for transmitting high quality video/audio signal. The power line...
US-8,692,101 Stringed instrument for connection to a computer to implement DSP modeling
Disclosed is a stringed instrument that includes a plurality of strings and a pickup to which each of the plurality of strings is respectively coupled that is...
US-8,688,993 Method and apparatus for determining and using the sampling frequency for decoding watermark information...
In watermarked signal decoding, the embedded message is decoded by correlating the reference patterns with the watermarked signal. The watermark detector...
US-8,688,442 Audio decoding apparatus, audio coding apparatus, and system comprising the apparatuses
An audio decoding apparatus comprises: a plurality of decoding units; a band replicating unit which processes a decoded signal obtained when a corresponding...
US-8,688,441 Method and apparatus to facilitate provision and use of an energy value to determine a spectral envelope shape...
One provides (101) a digital audio signal having a corresponding signal bandwidth, and then provides (102) an energy value that corresponds to at least an...
US-8,688,251 System and method for automatically producing haptic events from a digital audio signal
The system and method described is directed to receiving digital audio files and automatically converting the received files into haptic events. In an...
US-8,688,250 Content data reproduction apparatus and a sound processing system
A reproduction apparatus 2 collects sounds on which spread codes are superimposed with a microphone 20 to calculate correlation values between the collected...
US-8,688,249 Processing audio input signals
A method of reproducing a stereo output signal (having a left field and a right field) represented as digital samples such that said stereo signal emulates the...
US-8,688,107 Voice bridging gateway for tactical communications
Each of a number of gateway network radios operates with a transmission protocol of an associated one of plural incompatible communication networks. Each...
US-8,687,838 Speaker unit
A speaker unit is realized which directly drives a vibration plate having a low density, light weight, yet sufficient rigidity with a digital audio signal, and...
US-8,687,829 Apparatus and method for multi-channel parameter transformation
A parameter transformer generates level parameters, indicating an energy relation between a first and a second audio channel of a multi-channel audio signal...
US-8,687,824 Acoustic processing device
There is provided an acoustic processing device capable of maintaining volume and reproducing audio signals with good sound quality independent of the media...
US-8,687,823 Microphone interface and method of operation
An interface is provided between a transducer and audio processing circuitry. The interface has a switching device coupled to the transducer. The interface also...
US-8,687,822 Filtering system for equalizing a loudspeaker system
An improved filtering system for loudspeaker equalization is comprised of two filtering sections, a single pole filtering section having single pole filters for...
US-8,687,820 Stereo microphone processing for teleconferencing
Methods and devices for improving the intelligibility of audio in a teleconferencing unit. Multiple microphones and multiple audio channels are used, in which...
US-8,687,818 Method for dynamically adjusting the spectral content of an audio signal
A method for dynamically adjusting the spectral content of an audio signal, which increases the harmonic content of said audio signal, said method comprising...
US-8,687,815 Method and audio system for processing multi-channel audio signals for surround sound production
A method and audio system for processing multi-channel audio signals for surround sound production on a plurality of loudspeakers to a listening area. The...
US-8,687,796 Method and electronic device for improving communication quality based on ambient noise sensing
A method and an electronic device for communication quality improvement based on ambient noise sensing are provided for improving communication quality. The...
US-8,687,650 System, method, and computer program product for connecting or coupling analog audio tone based communications...
An automated telecommunications system includes a first system operable to receive PSTN compatible audio frequency signals, to decode and interpret said...
US-8,687,130 Remote controller, and system and method for remotely controlling digital television
A remote controller (100) and a system and method for remotely controlling a digital TV are disclosed. A memory card (110) is mounted in the remote controller...
US-8,687,118 Repeater being utilized between a source and sink device for lip-syncing in an HDMI system
A repeater is to be provided between a source device and a sink device and be used in a Lip-sync correction system that transmits a video signal and an audio...
US-8,687,090 Method of removing audio noise and image capturing apparatus including the same
A method of removing an audio noise and an image capturing apparatus providing the same includes storing a specified audio signal included in a captured image...
US-8,686,792 Amplifying device
A supply voltage controller 11 includes a simplified envelope creating unit 111 that calculates an envelope of an input audio signal according to an input audio...
US-8,686,789 Transient signal suppression for a class-D audio amplifier arrangement
A Class-D amplifier arrangement is disclosed that implements an auxiliary feedback loop and a primary feedback loop. The auxiliary feedback loop operates upon...
US-8,683,601 Audio/video identification watermarking
The invention is directed to marking audio/video (A/V) signals for use in tracing content to a source. An ID controller captures an A/V synchronization...
US-8,683,504 Methods and apparatus to monitor audio/visual content from various sources
Methods and apparatus to monitor audio/visual content from various sources are disclosed. An example method disclosed herein comprises determining first...
US-8,682,678 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-8,682,664 Method and device for audio signal classification using tonal characteristic parameters and spectral tilt...
The present invention discloses a method and a device for audio signal classification, and relates to the field of communications technologies, which solve a...
US-8,682,662 Method and apparatus for voice activity determination
In accordance with an example embodiment of the invention, there is provided an apparatus for detecting voice activity in an audio signal. The apparatus...
US-8,682,659 Geotagged environmental audio for enhanced speech recognition accuracy
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for enhancing speech recognition accuracy. In one aspect, a...
US-8,682,658 Audio equipment including means for de-noising a speech signal by fractional delay filtering, in particular for...
The equipment comprises two microphones, sampling means, and de-noising means. The de-noising means are non-frequency noise reduction means comprising a...
US-8,682,652 Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic
An audio encoder, an audio decoder or an audio processor includes a filter for generating a filtered audio signal, the filter having a variable warping...
US-8,682,651 Audio visual signature, method of deriving a signature, and method of comparing audio-visual data
The invention relates to the analysis of characteristics of audio and/or video signals for the generation of audio-visual content signatures. To determine an...
US-8,682,461 Audio signal processing system
Region having a same size in a audio signal region of a transmission frame is allocated to each of an active engine and passive engine. The active engine reads...
US-8,682,448 EMF probe configurations for electro-modulation of ionic channels of cells and methods of use thereof
A system for pattern recognition of cell and tissue malfunction and for treatment of such malfunction is presented. When a malfunction is recognized by a search...
US-8,682,250 Noise cancellation system
A noise cancellation system for an audio system such as a mobile phone handset, or a wireless phone headset has a first input for receiving a first audio signal...
US-8,682,244 Underwater communication system
An underwater communications system is provided that transmits electromagnetic and/or magnetic signals to a remote receiver. The transmitter includes a data...
US-8,682,144 Method for synchronizing multiple audio signals
Provided are methods for synchronizing multiple video recordings of the same event using audio signals of the recordings. An algorithm is designed to generate...
US-8,682,132 Method and device for detecting music segment, and method and device for recording data
[Problem] The present invention provides a method of detecting a music scene with a high accuracy from a television broadcast. [Means for solution] The...
US-8,682,014 Audio device with a voice coil channel and a separately amplified telecoil channel
A portable audio device has a voice coil audio signal processor in which a desired audio content signal is combined with an anti-noise signal produced by an...
US-8,682,011 Method for switching a hearing device between two operating states and hearing device
Switching a hearing device from a first operating state into a second operating state is to be configured in an acoustically-friendly fashion. A first output...
US-8,682,002 Systems and methods for transducer calibration and tuning
Audio transducers (headphones, speakers, microphones) inherently do not accurately reproduce the signal presented to them at the input. This can be compensated...
US-8,681,998 Volume correction device, volume correction method, volume correction program, and electronic equipment
A volume correction device includes: a variable gain means for controlling a gain, given to an input audio signal, according to a gain control signal; a...
US-8,681,997 Adaptive beamforming for audio and data applications
A system and method for performing efficient directed sound and/or data to a user utilizing position information. Various aspects may, for example, comprise...
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