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US20050177361 Multi-band spectral audio encoding  
An encoder includes a sampler that samples an audio signal and that generates from the samples a plurality of short blocks of sampled audio. Each of the short blocks has a duration less than a...
US20160140970 AUDIO DATA RECEIPT/EXPOSURE MEASUREMENT WITH CODE MONITORING AND SIGNATURE EXTRACTION  
Systems and methods are provided for gathering audience measurement data relating to receipt of and/or exposure to audio data by an audience member. Audio data is monitored to detect a monitoring...
US20050246164 Coding of audio signals  
An encoder comprises an input for inputting frames of an audio signal in a frequency band, an analysis filter dividing the frequency band into lower and higher frequency bands, a first encoding...
US20050267739 Neuroevolution based artificial bandwidth expansion of telephone band speech  
Artificial bandwidth expansion devices, systems, methods and computer code products are disclosed for expanding a narrowband speech signal into an artificially expanded wideband speech signal....
US20110040556 METHOD AND APPARATUS FOR ENCODING AND DECODING RESIDUAL SIGNAL  
A method and apparatus for encoding and decoding a residual signal are provided. The encoding method includes generating a residual signal indicating a difference between a multi-channel audio...
US20140006017 SYSTEMS, METHODS, APPARATUS, AND COMPUTER-READABLE MEDIA FOR GENERATING OBFUSCATED SPEECH SIGNAL  
Arrangements are described that may be used to reduce the intelligibility of speech using masker signals which are obfuscated yet correlated versions of the speech. Other applications of pitch...
US20070168186 Audio coding apparatus, audio decoding apparatus, audio coding method and audio decoding method  
An audio coding apparatus comprises a frequency converter which performs frequency conversion on an audio signal to obtain frequency conversion coefficients, an importance calculator which...
US20050108004 Voice activity detector based on spectral flatness of input signal  
A voice activity detector that detects talkspurts in a given signal at a high accuracy, so as to improve the quality of voice communication. A frequency spectrum calculator calculates frequency...
US20080004866 Artificial Bandwidth Expansion Method For A Multichannel Signal  
Techniques for applying artificial bandwidth expansion to a multichannel signal are described. Aspects of a system for applying artificial bandwidth expansion to a multichannel signal include an...
US20150149157 FREQUENCY DOMAIN GAIN SHAPE ESTIMATION  
A method includes determining, at a speech encoder, frequency domain gain shape parameters. The frequency domain gain shape parameters are based on a second signal associated with an audio signal....
US20120179458 APPARATUS AND METHOD FOR ESTIMATING NOISE BY NOISE REGION DISCRIMINATION  
Provided are an apparatus and method for estimating noise that changes with time. The apparatus may calculate a speech absence probability that indicates the possibility of the absence of speech...
US20090271182 COMPUTER-IMPLEMENTED METHODS AND SYSTEMS FOR MODELING AND RECOGNITION OF SPEECH  
In accordance with the present invention, computer implemented methods and systems are provided for representing and modeling the temporal structure of audio signals. In response to receiving a...
US20150332668 AUDIO SIGNAL RECOGNITION METHOD AND ELECTRONIC DEVICE SUPPORTING THE SAME  
An electronic device is provided. The electronic device includes a signal acquisition module configured to transmit a signal toward an object and receive an echo signal obtained by transformation...
US20110191102 SYSTEMS AND METHODS FOR SPEECH EXTRACTION  
In some embodiments, a processor-readable medium stores code representing instructions to cause a processor to receive an input signal having a first component and a second component. An estimate...
US20090018824 AUDIO ENCODING DEVICE, AUDIO DECODING DEVICE, AUDIO ENCODING SYSTEM, AUDIO ENCODING METHOD, AND AUDIO DECODING METHOD  
Provided is an audio encoding device for modeling a spectrum waveform and accurately restoring the spectrum waveform. The audio encoding device includes: an FFT unit (104) for subjecting a...
US20140372107 AUDIO PROCESSING  
A technique for creating audio objects on basis of a source audio signal is provided. According to an example embodiment, the technique comprises obtaining a plurality of frequency sub-band...
US20120215525 METHOD AND APPARATUS FOR MIXED DIMENSIONALITY ENCODING AND DECODING  
A method and apparatus for mixed dimensionality encoding and decoding are provided in embodiments of the present invention. The method includes: obtaining at least one variable collection through...
US20050228649 Method and apparatus for classifying sound signals  
The invention concerns a method for assigning at least one sound class to a sound signal, characterized in that it comprises the following steps: dividing the sound signal into temporal segments...
US20050216259 Filter set for frequency analysis  
A system and method are disclosed for analyzing an input signal into a plurality of frequency components. In one embodiment, the input signal is processed with a first set of low pass filters to...
US20130030796 AUDIO ENCODING APPARATUS AND AUDIO ENCODING METHOD  
An audio encoding apparatus that allows a decoded signal exhibiting an excellent sound quality to be obtained on a decoding side. In the audio encoding apparatus (1000A), a time-frequency...
US20070299655 Method, Apparatus and Computer Program Product for Providing Low Frequency Expansion of Speech  
An apparatus for providing low frequency expansion of speech includes a nonlinear function element, a band-pass filter element and a level control element. The non-linear function element is...
US20100223061 Method and Apparatus for Audio Coding  
In accordance with an example embodiment of the present invention, there is provided an apparatus for encoding an audio signal in two or more encoding stages, the audio signal comprising a set of...
US20140114652 AUDIO CODING DEVICE, AUDIO CODING METHOD, AND AUDIO CODING AND DECODING SYSTEM  
An audio coding device includes a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute, calculating a frequency...
US20100017199 ENCODING DEVICE, DECODING DEVICE, AND METHOD THEREOF  
Provided is a decoding device and others which can mitigate the spectrum energy discontinuity and improves the decoded signal quality even when a sub-band is subjected to a spectrum attenuation...
US20050228648 Method and device for obtaining parameters for parametric speech coding of frames  
The invention provides a novel method for ensuring the phase continuity in transitions from a frame coded by a waveform matching coder to a frame coded using a parametric speech coder in hybrid...
US20050091041 Method and system for speech coding  
A method and device for use in conjunction with an encoder for encoding an audio signal into a plurality of parameters. Based on the behavior of the parameters, such as pitch, voicing, energy and...
US20050065784 Modification of acoustic signals using sinusoidal analysis and synthesis  
An analysis and synthesis system for sound is provided that can independently modify characteristics of audio signals such as pitch, duration, and timbre. High-quality pitch-scaling and...
US20120046942 TERMINAL TO PROVIDE USER INTERFACE AND METHOD  
A terminal and method to determine surrounding circumstances using received sound signals and to automatically control various user interfaces according to the surrounding circumstances. The...
US20070265840 Signal processing method and device  
In a signal processing method and device which enhance a following speed of an estimated noise in a steep rise section of a noise level and generate little estimation error of a noise spectrum due...
US20050096898 Classification of speech and music using sub-band energy  
Disclosed herein is a method and system for classifying an audio signal using a sub-band energy analysis. An audio signal may be received as an input to the system for classifying an audio signal....
US20160351204 Method and Apparatus for Processing Speech Signal According to Frequency-Domain Energy  
A method and an apparatus for processing a speech signal according to frequency-domain energy where the method and apparatus include receiving an original speech signal including a first speech...
US20140358528 Electronic Apparatus, Method for Outputting Data, and Computer Program Product  
According to one embodiment, an electronic apparatus includes a receiver and a processor. The receiver is configured to receive a signal of multiplexed sound comprising data of main sound and sub...
US20130024191 AUDIO COMMUNICATION DEVICE, METHOD FOR OUTPUTTING AN AUDIO SIGNAL, AND COMMUNICATION SYSTEM  
An audio communication device comprises an input connectable to a narrowband audio signal source. The input can receive a narrowband audio signal having a first bandwidth. An extraction unit is...
US20150256930 MASKING SOUND DATA GENERATING DEVICE, METHOD FOR GENERATING MASKING SOUND DATA, AND MASKING SOUND DATA GENERATING SYSTEM  
A masking sound data generating device includes a source sound data obtaining portion that obtains source sound data which represents a sound used in a generation of masking sound data, a speaker...
US20140019125 LOW BAND BANDWIDTH EXTENDED  
Apparatus comprising: an input amplitude and phase calculator configured to determine at least one amplitude value and phase value dependent on a first audio signal; a synthesis amplitude...
US20070136050 System and method for audio signal processing  
A sound reproduction system comprises a digital audio signal input (1), a digital audio signal processor (2, DSP) and a digital audio signal output (1) wherein the digital signal processor (2,...
US20060100861 Signal filtering  
A method of filtering an information signal (x(t)), the method comprising modifying frequency domain components (X(k,n)) of the information signal according to a desired filter response (F(k,n));...
US20150371662 VOICE PROCESSING DEVICE AND VOICE PROCESSING METHOD  
A voice processing device includes a memory; and a processor configured to execute a plurality of instructions stored in the memory, the instructions includes acquiring a transmitted voice; first...
US20100066742 STYLIZED PROSODY FOR SPEECH SYNTHESIS-BASED APPLICATIONS  
Described is a technology by which the prosody of synthesized speech may be changed by varying data associated with that speech. An interface displays a visual representation of synthesized speech...
US20060143001 Method for the adaptation of comfort noise generation parameters  
In order to adapt comfort noise generation (CNG) parameters CNP, which are provided for generating a background noise signal in a telecommunications system 1 consisting of a packet-oriented...
US20140095154 VOICE TRANSMITTING DEVICE, VOICE TRANSMITTING METHOD, VOICE RECEIVING DEVICE, AND VOICE RECEIVING METHOD  
There is provided a voice transmitting device, including a band limiting unit that performs band limitation on an input time-series signal, a coding unit that encodes a time-series signal output...
US20110125490 NOISE SUPPRESSOR AND VOICE DECODER  
A processed component calculating unit 14 obtains a transformed noise suppressed spectrum 18a based on the ratio between a noise suppressed spectrum 18 and an estimated noise spectrum 17, and a...
US20090012779 Sound source separation apparatus and sound source separation method  
A sound source separation apparatus includes: an SIMO-ICA process unit, separating and generating an SIMO signal by the BSS method based on the ICA method; a sound source direction estimation...
US20130268265 METHOD AND DEVICE FOR PROCESSING AUDIO SIGNAL  
The present invention relates to a method for processing an audio signal, and the method comprises the steps of: receiving an audio signal; determining a coding mode corresponding to a current...
US20100121632 STEREO AUDIO ENCODING DEVICE, STEREO AUDIO DECODING DEVICE, AND THEIR METHOD  
Provided is a stereo audio encoding device which can improve the ICP (Inter-channel Prediction) performance of a stereo audio signal while suppressing the bit rate. The device (100) includes: a...
US20090306973 Sound Source Separation Apparatus and Sound Source Separation Method  
A sound source separation apparatus, includes: a plurality of sound input means into which a plurality of mixed sound signals in which sound source signals from a plurality of sound sources...
US20090112580 Speech processing apparatus and method of speech processing  
The speech processing apparatus configured to split a first speech waveform and a second speech waveform into a plurality of frequency bands respectively to generate a first band speech waveform...
US20120116755 APPARATUS FOR ENHANCING INTELLIGIBILITY OF SPEECH AND VOICE OUTPUT APPARATUS USING THE SAME  
An apparatus for enhancing intelligibility of speech and a voice output apparatus using the same are provided. The apparatus detects a level of a voice frame of an input signal through an input...
US20110082691 BROADCASTING SYSTEM INTERWORKING WITH ELECTRONIC DEVICES  
Provided is a technology of controlling an electronic device using a broadcasting system. A control signal may be modulated to an audible frequency band and thereby be transmitted from a...
US20080300866 METHOD AND SYSTEM FOR CREATION AND USE OF A WIDEBAND VOCODER DATABASE FOR BANDWIDTH EXTENSION OF VOICE  
The invention concerns a system (300) and method (400) for bandwidth extension of voice for improving the quality of voice in a communication system. The method and system include the steps of...

Matches 1 - 50 out of 79 1 2 >