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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... |
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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... |
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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... |
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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.... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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.... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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.... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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,... |
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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));... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |