Matches 1 - 45 out of 45


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US20080167869 Speech Recognition Apparatus  
A voice recognition system (10) for improving the toughness of voice recognition for a voice input for which a deteriorated feature amount cannot be completely identified. The system comprises at...
US20120177223 MULTI-INPUT NOISE SUPPRESSION DEVICE, MULTI-INPUT NOISE SUPPRESSION METHOD, PROGRAM, AND INTEGRATED CIRCUIT  
A power spectrum estimation unit (200) obtains an estimated sound power spectrum Ps(ω), based on a power spectrum P1(ω) and on a first calculated value obtained by at least multiplying a power...
US20080013749 VOICE CODER WITH TWO MICROPHONE SYSTEM AND STRATEGIC MICROPHONE PLACEMENT TO DETER OBSTRUCTION FOR A DIGITAL COMMUNICATION DEVICE  
The present invention provides a voice coder for voice communication that employs a multi-microphone system as part of an improved approach to enhancing signal quality and improving the signal to...
US20090154728 SOUND COLLECTION APPARATUS  
A sound collection apparatus according to the present invention comprises: at least one target sound collection means for collecting a sound including a target sound generated from a target sound...
US20080049953 Multiple Microphone System  
A microphone system has a primary microphone for producing a primary signal, a secondary microphone for producing a secondary signal, and a selector operatively coupled with both the primary...
US20080292108 DEREVERBERATION SYSTEM FOR USE IN A SIGNAL PROCESSING APPARATUS  
A system used in a loudspeaker-room-microphone environment includes a microphone signal partitioner that divides a signal from a microphone into one or more divided portions. A reverberation...
US20080187153 Restoring Corrupted Audio Signals  
A method of restoring a corrupted audio signal comprises the steps of; inputting the corrupted audio signal in a first channel (30-32), inputting one or more further correlated audio signals in...
US20080064336 MOBILE COMMUNICATION TERMINAL FOR REMOVING NOISE IN TRANSMITTING SIGNAL AND METHOD THEREOF  
A mobile communication terminal for removing noise in a transmitting signal and a method thereof are provided. The mobile communication terminal includes a first microphone for capturing a voice...
US20140079245 WIND NOISE REDUCING CIRCUIT  
A high-pass filter is configured to remove a low-pass filter component of a first channel audio signal and a low-pass filter component of a second channel audio signal. A control unit is...
US20100303257 Preserving Noise During Editing Of A Signal  
Techniques for introducing background noise segments into signal data are provided. The background noise segments are constructed from a background noise print extracted from the signal data. The...
US20060256978 Sparse signal mixing model and application to noisy blind source separation  
A computer-implemented method for blind-source separation includes capturing a mixed source signal by two or more sensors, transforming the mixed source signal from a time domain into a frequency...
US20080240465 SOUND REPRODUCING DEVICE AND SOUND REPRODUCTION METHOD  
A sound reproducing device is provided including a communication unit that transmits/receives signals; at least one sound output unit that outputs sound based upon a signal having been received, a...
US20090147969 PLAYBACK DEVICE, PLAYBACK METHOD AND PLAYBACK SYSTEM  
A playback device includes: a playback portion that plays back content and outputs at least an audio signal; an acquisition portion that acquires an external audio signal; a generating portion...
US20080101627 NOISE INDICATION APPARATUS AND METHOD FOR DETECTING NOISE  
A noise indication apparatus and a method for detecting noise comprise a sound volume detection module and warning unit. The sound detection module can pick up a sound signal and then detect the...
US20090022335 Dual Adaptive Structure for Speech Enhancement  
A clear, high quality voice signal with a high signal-to-noise ratio is achieved by use of an adaptive noise reduction scheme with two microphones in close proximity. The method includes the use...
US20120093341 APPARATUS AND METHOD FOR SEPARATING SOUND SOURCE  
Disclosed are an apparatus and a method for separating sound sources capable of learning distributions of corresponding sound sources based on the assumption that specific sound sources have...
US20130016854 MICROPHONE ARRAY PROCESSING SYSTEM  
An audio system is provided that employs time-frequency analysis and/or synthesis techniques for processing audio obtained from a microphone array. These time-frequency analysis/synthesis...
US20070237339 Environmental noise reduction and cancellation for a voice over internet packets (VOIP) communication device  
A system and method for reducing or entirely canceling background or environmental noise from a voice transmission from a communications device. A communications device, such as a voice over...
US20100296668 SYSTEMS, METHODS, APPARATUS, AND COMPUTER-READABLE MEDIA FOR AUTOMATIC CONTROL OF ACTIVE NOISE CANCELLATION  
Active noise cancellation is combined with spectrum modification of a reproduced audio signal to enhance intelligibility.
US20120263317 SYSTEMS, METHODS, APPARATUS, AND COMPUTER READABLE MEDIA FOR EQUALIZATION  
Enhancement of audio quality (e.g., speech intelligibility) in a noisy environment, based on subband gain control using information from a noise reference, is described.
US20060147055 In-vehicle audio apparatus  
An audio apparatus has a function of correcting an audio signal in response to a noise level. The audio apparatus includes a correction unit that corrects an input audio signal on the basis of a...
US20090010453 INTELLIGENT GRADIENT NOISE REDUCTION SYSTEM  
An intelligent noise reduction system (100) is provided. The system can include a gradient microphone (110) to produce a gradient speech signal, a correction unit (116) to de-emphasize a high...
US20100098266 MULTI-CHANNEL AUDIO DEVICE  
An audio signal enhancement device is provided. The device includes a first and a second microphone, placed as close together as possible, the first and second microphone having receiving surfaces...
US20140177868 AUDIO PROCESSING DEVICE COMPRISING ARTIFACT REDUCTION  
An audio processing device comprises a forward path comprising an input unit for delivering a time varying electric input signal representing an audio signal, the electric input signal comprising...
US20090129610 Method and apparatus for canceling noise from mixed sound  
A method, medium, and apparatus canceling noise from a mixed sound. The method includes receiving sound source signals including a target sound and noise, extracting at least one feature vector...
US20100241428 METHOD AND SYSTEM FOR BEAMFORMING USING A MICROPHONE ARRAY  
A system (10) for beamforming using a microphone array, the system (10) comprising: a beamformer consisting of two parallel adaptive filters (12, 13), a first adaptive filter (12) having low...
US20090274320 NOISE CANCELING APPARATUS AND NOISE CANCELING METHOD  
Disclosed herein is a noise canceling apparatus including: a microphone configured to pick up ambient sound as noise; a first signal generator configured to receive a signal from the microphone to...
US20090220107 System and method for providing single microphone noise suppression fallback  
Systems and methods for providing single microphone noise suppression fallback are provided. In exemplary embodiments, primary and secondary acoustic signals are received. A single microphone...
US20080008334 Noise Detecting Apparatus and AM Broadcast Receiving Apparatus  
A noise detecting apparatus detecting presence or absence of noise in a received signal, comprising: a first band selecting unit configured to select a first signal of a first frequency band that...
US20050175192 Noise cancellation  
A noise cancellation circuit has a first and second input for a first signal having a signal element and a noise element, and a second signal comprising at least a smaller amplitude of the said...
US20080279394 Noise suppressing apparatus and method for noise suppression  
A common component extraction unit extracts a component Mi(n) included commonly in the plural input channels. A non-common component extraction unit extracts a component Si(n) not common to the...
US20140126746 SIGNAL-SEPARATION SYSTEM USING A DIRECTIONAL MICROPHONE ARRAY AND METHOD FOR PROVIDING SAME  
A signal separation system using directional microphone array and a method for providing same. The signal separation system using directional microphone array includes a signal receiving section...
US20110026736 AUDIO-SEPARATING APPARATUS AND OPERATION METHOD THEREOF  
This present invention discloses an audio-separating apparatus and operation method thereof. The audio-separating apparatus applies both blind source separation and noise reduction mechanisms. The...
US20100158271 METHOD FOR SEPARATING SOURCE SIGNALS AND APPARATUS THEREOF  
A method for separating a sound source from a mixed signal, includes Transforming a mixed signal to channel signals in frequency domain; and grouping several frequency bands for each channel...
US20170127171 NOISE REDUCTION SYSTEM  
Earphone apparatus includes at least one earphone driver operative to receive an input signal and mounted so as to deliver sound to a wearer's ear, and a sensing microphone sensitive to noise...
US20170103744 Multi-Channel Noise Reduction System with Direct Instrument Tracking  
A multi-channel noise reduction system provides improved noise reduction with direct instrument tracking of all channels. In a two channel noise reduction system, both channels detect and track...
US20170025133 NOISE ELIMINATION CIRCUIT  
A noise elimination circuit of particular application in enhancing vocal clarity in a teleconference includes a first voice processing circuit, a second voice processing circuit, and a subtracter....
US20170011752 MICROPHONE AND MANUFACTURING METHOD THEREOF  
A microphone includes: a case that is vibrated by a vibration signal, a sound inlet through which a sound signal is input being formed at a portion of the case; a first sound element that is...
US20160267925 AUDIO PROCESSING APPARATUS THAT OUTPUTS, AMONG SOUNDS SURROUNDING USER, SOUND TO BE PROVIDED TO USER  
A audio processing apparatus includes an acquirer that acquires a surrounding audio signal indicating a sound surrounding a user; an audio extractor that extracts, from the acquired surrounding...
US20160232888 Ambient Noise Cancellation for Voice Communication Device  
A system and method for reducing or entirely canceling background or ambient noise from a voice transmission from a communications device. A communications device, such as a mobile telephone, is...
US20160112817 HEAD WEARABLE ACOUSTIC SYSTEM WITH NOISE CANCELING MICROPHONE GEOMETRY APPARATUSES AND METHODS  
Systems and methods are described to extract desired audio from an apparatus to be worn on a user's head. The apparatus includes a head wearable device. A first microphone is coupled to the head...
US20160049163 METHOD, APPARATUS AND SYSTEM FOR ISOLATING MICROPHONE AUDIO  
A method, apparatus and system for isolating microphone audio include recording audio using at least two microphones using a target microphone of the array of microphones, determining an...
US20160049161 SPEECH PROCESSING APPARATUS, SPEECH PROCESSING METHOD, SPEECH PROCESSING PROGRAM, METHOD OF ATTACHING SPEECH PROCESSING APPARATUS, CEILING MEMBER, AND VEHICLE  
To input the voice of the passenger of a vehicle and output a piece of high-quality enhanced speech independently of the direction of a piece of speech or noise, a speech processing apparatus...
US20140286505 VEHICULAR ACTIVE VIBRATIONAL NOISE CONTROL APPARATUS  
A vehicular active vibrational noise control apparatus includes an amplitude limiter for limiting the amplitude of a canceling signal based on a signal level of an audio signal, and a vehicle...
US20120057723 Signal Processing Apparatus and Method  
A signal processing apparatus includes a first audio output unit configured to output audio of a first audio signal input from a first signal input line, a first pickup unit connected to the first...

Matches 1 - 45 out of 45