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Searching: audio signal





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Patent # Description
US-8,553,913 Condenser microphone and head thereof
A head of a condenser microphone includes: a condenser microphone unit; a housing supporting the condenser microphone unit; a first circuit board arranged...
US-8,553,909 Low-power class D amplifier using multistate analog feedback loops
An audio amplifier system may include an audio CODEC/output (AOP) path featuring analog class-D amplifiers, and using Natural Sampling Pulse Width Modulation...
US-8,553,908 Amplification apparatus
An amplification apparatus comprises: an amplifier circuit that amplifies an input audio signal and outputs an output audio signal; a first signal level...
US-8,553,906 Apparatus for enabling karaoke
There is provided an apparatus for enabling karaoke. The apparatus includes a casing for the apparatus; a microphone array incorporated within the casing, the...
US-8,553,905 Always on headwear recording system
A system that records audio and stores the recording is provided. The system includes first and second monitoring assemblies mounted in an earpiece that...
US-8,553,902 Multi-channel broadcasting system using digital matrix amplifier and method of controlling the same
A multi-channel broadcasting system using a digital matrix amplifier performing the setting of respective equipment is provided to control the model equipment...
US-8,553,895 Device and method for generating an encoded stereo signal of an audio piece or audio datastream
A device for generating an encoded stereo signal from a multi-channel representation includes a multi-channel decoder generating three of more multi-channels...
US-8,553,894 Active and passive directional acoustic radiating
An three-way audio system that uses directional arrays for radiating mid-frequency acoustic energy and passive directional devices to radiate the high...
US-8,553,892 Processing a multi-channel signal for output to a mono speaker
Systems, methods, and devices for processing an audio signal with two or more channels into a monaural signal are provided. For example, an electronic device...
US-8,553,891 Low complexity parametric stereo decoder
A stereo audio decoder generates a set of stereo output channels in response to a parametric audio input including signal parameters and stereo related...
US-8,553,890 Sound reproduction method and sound reproduction system
A sound reproduction system includes low frequency speaker units for reproducing low frequency sounds by receiving audio signals on low frequency channels among...
US-8,553,865 Multi-point to multi-point intercom system
A multi-point to multi-point intercom system, formed by at least one intercom server and a plurality of intercom terminals, the intercom terminals registered as...
US-8,553,678 Distributed codec for packet-based communications
A packet-based communications system is provided, including: a client communications module for transmitting digital audio signals to a user interface device...
US-8,553,504 Crossfading of audio signals
A technique is disclosed to implement crossfading of audio tracks. In one embodiment, the function describing the fade out of the ending audio track and/or the...
US-8,553,159 Radio frequency powered remote control
Described herein is a remote control for controlling audio/visual equipment. The remote control may include an input device, a transmitter, and a power...
US-8,553,148 Methods and apparatus to distinguish a signal originating from a local device from a broadcast signal
Methods and apparatus to distinguish a signal originating from a local device from a broadcast signal are disclosed. A disclosed example method includes...
US-8,552,860 Binaural audio signal-based applications
Applications for detecting binaural sounds and customizing binaural sounds for users. A system is disclosed having: an interface for obtaining a plurality of...
US-8,550,978 System for and method of controlling playback of audio signals
A system (1) and method for controlling the reproduction of audio signals via the monitoring of the state of relaxation of a person, wherein at least one...
US-8,550,207 High retention aural transmission device
Apparatus and associated methods may relate to a unitary body having a hardness of between 20 and 35 according to the Japanese Industrial Standards (JIS) and...
US-RE44,525 Systems and methods for over-current protection
Systems and methods for over-current protection in all-digital amplifiers using low-cost current sensing mechanisms. An over-current hard clipping unit receives...
US-8,548,816 Efficient scalefactor estimation in advanced audio coding and MP3 encoder
An efficient approach for estimating scalefactors for use in the quantization of audio signal spectrum values is described. The scalefactor estimation approach...
US-8,548,814 Method and portable system for phonetic language translation using brain interface
A phonetic language translation system receives audio output from an audible program presented to the user, so as to identify any speech signal contained within...
US-8,548,804 Generating sample error coefficients
This invention relates to generation of a sample error coefficient suitable for use in an audio signal quality assessment system. The invention provides a...
US-8,548,803 System and method of processing a sound signal including transforming the sound signal into a frequency-chirp...
A system and method may be configured to process an audio signal. The system and method may track pitch, chirp rate, and/or harmonic envelope across the audio...
US-8,548,801 Adaptive time/frequency-based audio encoding and decoding apparatuses and methods
Adaptive time/frequency-based audio encoding and decoding apparatuses and methods. The encoding apparatus includes a transformation & mode determination unit to...
US-8,548,616 Digital audio device
A digital audio device has a plurality of input ports that are provided with a plurality of digital audio signals. A plurality of extraction parts extract a...
US-8,548,615 Encoder
An encoder for encoding an audio signal comprising at least two channels, the encoder configured to generate an encoded signal comprising at least a first part,...
US-8,548,614 Dynamic range control and equalization of digital audio using warped processing
This invention describes a method for adjusting the loudness and the spectral content of digital audio signals in a real-time using warped spectral filtering. A...
US-8,548,612 Method of generating a footprint for an audio signal
Method of generating a footprint for a useful signal, wherein the useful signal represents the evolution of a spectrum comprising useful signal frequencies, for...
US-8,548,534 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-8,548,533 Wireless headset having improved RF immunity to RF electromagnetic interference produced from a mobile wireless...
A wireless headset has improved immunity to RF electromagnetic interference produced from wireless communications devices. A headset body is adapted to be worn...
US-8,548,408 Method and apparatus for utilizing modulation based audio correlation technique for maintaining dynamic FM...
A method of operating a single-tuner radio includes tuning into a first frequency. A pause in a first signal associated with the first frequency is detected....
US-8,548,373 Methods and apparatus for identifying a digital audio signal
Methods and apparatus for identifying a digital audio signal are described. An example apparatus for identifying a digital audio signal includes an input to...
US-8,548,306 Audio and video recording and reproduction apparatus for reproducing audio signals having different volume levels
An audio and video recording and reproduction apparatus includes an audio signal switch section for outputting one of a first audio signal having a first volume...
US-8,548,301 Record carrier carrying a video signal and at least one additional information signal
A record carrier is described carrying a video signal and at least one additional information signal, such as graphics or audio. The at least one additional...
US-8,548,192 Method for extracting a fingerprint data from video/audio signals
A method for extracting a fingerprint data from video/audio signals, comprising the steps of sending a series of video frame images into a fingerprint...
US-8,548,190 Composite speaker
A composite speaker is provided capable of obtaining larger sound output than that of a conventional flat panel speaker and flat speaker when input with an...
US-8,548,176 Apparatus including microphone arrangements
An apparatus includes first and second microphone arrangements, arranged to output first and second signals respectively and is operable in a first mode and a...
US-8,548,175 Method for recognizing ear phone in portable terminal and apparatus thereof
Disclosed is an apparatus for recognizing an earphone of a portable terminal that includes an interface unit which is connected to the earphone; a controller...
US-8,548,173 Sound volume correcting device, sound volume correcting method, sound volume correcting program, and electronic...
A sound volume correcting device includes: a variable gain unit controlling a gain of an input audio signal on the basis of a gain control signal; a voice...
US-8,548,144 Apparatus, system, and method for automated call initiation
Apparatus, system, and methods for automated call initiation. In some implementations, the method for automated call initiation includes initiating an automated...
US-8,547,963 VoIP integrating system and method thereof
An internet phone integrating system includes a PC, a VoIP phone, a softphone, an HID signal-transmitting unit, and a media transmitting unit. The VoIP phone...
US-8,547,416 Signal processing apparatus, signal processing method, program, and recording medium for enhancing voice
A signal processing apparatus processing a video signal and an audio signal in synchronization with the video signal includes generating means for generating...
US-8,546,675 Synthesized string tuner
A method for tuning a musical instrument comprising: (a) digitizing the vibration of at least one vibrating element of the instrument; (b) estimating the...
US-8,545,283 Interactive doll or stuffed animal
A toy has a body in the form of a doll or a living being, an audio output to reproduce audio effects, a memory to provide audio data, a controller to control...
US-8,544,132 Interactive toothbrush and removable audio output module
An oral care implement (100), comprising an oral care region (124,127) attached to a body (125), a portion (126) of the body being configured for gripping by a...
US-8,543,704 Method and apparatus for multimodal voice and web services
A voice server can be located, temporarily allocated, and sent audio. The results are returned to a voice client, and the voice server is deallocated for use by...
US-8,543,560 Audio and/or video generation apparatus and method of generating audio and/or video signals
An audio and/or video generation apparatus which is arranged in operation to generate audio and/or video signals representative of an audio and/or video source,...
US-8,543,526 Systems and methods using neural networks to reduce noise in audio signals
Systems, methods, and computer program products are provided to provide noise reduction for an input signal using a neural network. A feed-forward set of neuron...
US-8,543,389 Coding/decoding of digital audio signals
The invention relates to the coding/decoding of a signal into several sub-bands, in which at least a first and a second sub-bands which are adjacent are...
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