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US20110004468 HEARING AID AND HEARING-AID PROCESSING METHOD  
A hearing aid for improving diminished hearing caused by reduced temporal resolution includes: a speech input unit (201) which receives a speech signal from outside; a speech analysis unit (202)...
US20100023336 Compression of audio scale-factors by two-dimensional transformation  
Digital audio samples are represented as a product of scale factors codes and corresponding quantity codes, sometimes referred to as exponent/mantissa format. To compress audio data, scale factors...
US20110075883 Method and System for Recording Automatic Call Distributor Calls  
A method for recording automatic call distributor calls includes receiving from a caller a call for distribution to one of a plurality of agents and distributing the call to a first agent of the...
US20060265227 Audio decoding device  
A header format information determination section reads header format information to determine whether or not a stream conforms to IEC 61937-6. A header format information conversion section...
US20080130944 Digital Watermark Systems and Methods  
A digital watermark is added to audio or visual content. An illustrative embodiment permutes the content, alters the permuted content to encode a watermark, and inverse-permutes the content to...
US20060277051 Method and devices for evaluating transmission times and for procesing a vioce singnal received in a terminal connected to a packet network  
A method of evaluating the processing delay of a speech signal contained in data packets received in a receiver terminal equipped with a telephony module during a voice call to a terminal sending...
US20080046253 Temporal Envelope Shaping for Spatial Audio Coding Using Frequency Domain Wiener Filtering  
Certain types of parametric spatial coding encoders use interchannel amplitude differences, interchannel time differences, and interchannel coherence or correlation to build a parametric model of...
US20100138225 OPTIMIZATION OF MP3 ENCODING WITH COMPLETE DECODER COMPATIBILITY  
An iterative rate-distortion optimization algorithm for MPEG I/II Layer-3 (MP3) encoding based on the method of Lagrangian multipliers. Generally, an iterative method is performed such that a...
US20090125315 TRANSCODER USING ENCODER GENERATED SIDE INFORMATION  
An audio encoder encodes side information into a compressed audio bitstream containing encoding parameters used by the encoder for one or more encoding techniques, such as a noise-mask-ratio curve...
US20090048852 ENCODING AND/OR DECODING DIGITAL CONTENT  
Embodiments of methods, apparatuses, devices and systems associated with encoding and/or decoding audio data are disclosed.
US20060173692 Audio compression using repetitive structures  
A system, apparatus and method for compressing audio by detecting and processing repetitive structures in the audio. In this regard, a system has a repetition detector that is configured to detect...
US20130144632 FRAME ERROR CONCEALMENT METHOD AND APPARATUS, AND AUDIO DECODING METHOD AND APPARATUS  
A frame error concealment method is provided that includes predicting a parameter by performing a regression analysis on a group basis for a plurality of groups formed from a first plurality of...
US20150142456 SYSTEMS AND METHODS FOR IMPLEMENTING EFFICIENT CROSS-FADING BETWEEN COMPRESSED AUDIO STREAMS  
Systems and methods are presented for efficient cross-fading (or other multiple clip processing) of compressed domain information streams on a user or client device, such as a telephone, tablet,...
US20050182634 Method of selling new sound recordings  
An original business method that significantly improves the recorded music industry-standard street release method (a coined term) of selling recorded music in the open-source CD format, by...
US20110106545 TEMPORAL AND SPATIAL SHAPING OF MULTI-CHANNEL AUDIO SIGNALS  
A selected channel of a multi-channel signal which is represented by frames composed from sampling values having a high time resolution can be encoded with higher quality when a wave form...
US20100076774 AUDIO DECODER  
An audio decoder (100) comprising: effect means, decoding means, and rendering means. The effect means (500) generate modified down-mix audio signals from received down-mix audio signals. Said...
US20080144743 Demodulator system and method  
A demodulator system and method is disclosed. In an embodiment, the demodulator system can include a Coordinate Rotation Digital Computer (CORDIC) mixer to mix a first signal substantially to...
US20090326934 AUDIO DECODING DEVICE, AUDIO DECODING METHOD, PROGRAM, AND INTEGRATED CIRCUIT  
An audio decoding device of the present invention includes: a decoding unit decoding a stream to a spectrum coefficient, and outputting stream information when a frame included in the stream...
US20120022880 FORWARD TIME-DOMAIN ALIASING CANCELLATION USING LINEAR-PREDICTIVE FILTERING  
In a coder, a method for producing forward aliasing cancellation (FAC) parameters for cancelling time-domain aliasing caused to a coded audio signal in a first transform-coded frame by a...
US20130218579 Time Warped Modified Transform Coding of Audio Signals  
A representation of an audio signal having a first, a second and a third frame is derived by estimating first warp information for the first and second frames and second warp information for the...
US20060047523 Processing of encoded signals  
The invention relates in general to a method for combining frequency domain encoded signals from at least two signal sources. To allow combining signals without decoding the signals entirely, the...
US20110257983 Minimizing Speech Delay in Communication Devices  
Methods and apparatus for coordinating audio data processing and network communication processing in a communication device are disclosed. An exemplary method begins with demodulating a series of...
US20110146016 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 user; a memory configured to store a...
US20110066440 AUDIO SIGNAL ENCODING EMPLOYING INTERCHANNEL AND TEMPORAL REDUNDANCY REDUCTION  
A method of encoding a time-domain audio signal is presented. A device transforms the time-domain signal into a frequency-domain signal including a sequence of sample blocks, wherein each block...
US20120232913 METHODS AND SYSTEMS FOR BIT ALLOCATION AND PARTITIONING IN GAIN-SHAPE VECTOR QUANTIZATION FOR AUDIO CODING  
Embodiments are generally directed to systems and methods for bit allocation and band partitioning for gain-shape vector quantization in an audio codec. An audio codec implements a method that...
US20110224996 ADJUSTABLE SAMPLING RATE CONVERTER  
Techniques of this disclosure provide for adjustment of a conversion rate of a sampling rate converter (SRC) in real-time. The SRC determines relative timing of generated output samples based on...
US20090171677 AUDIO SUBSYSTEM SHARING IN A VIRTUALIZED ENVIRONMENT  
A device, method, and system are disclosed. In one embodiment the device includes a first virtual machine to directly access a physical audio codec. The device also includes a virtual audio codec...
US20090248424 LOSSLESS AND NEAR LOSSLESS SCALABLE AUDIO CODEC  
A scalable audio codec encodes an input audio signal as a base layer at a high compression ratio and one or more residual signals as an enhancement layer of a compressed bitstream, which permits a...
US20100100372 STEREO ENCODING DEVICE, STEREO DECODING DEVICE, AND THEIR METHOD  
Disclosed is a stereo encoding device which can improve critical channel encoding accuracy without increasing the encoding information amount. The device includes: a monaural signal synthesis unit...
US20120022881 AUDIO ENCODER, AUDIO DECODER, ENCODED AUDIO INFORMATION, METHODS FOR ENCODING AND DECODING AN AUDIO SIGNAL AND COMPUTER PROGRAM  
An audio decoder for providing a decoded audio information on the basis of an encoded audio information includes a window-based signal transformer configured to map a time-frequency...
US20080255831 Speech Band Extension Device  
A speech band extension device (100), which generates an audio signal capable of realizing natural audibility after speech band extension, includes a band-extended audio generator which generates...
US20080167882 WAVEFORM COMPRESSING APPARATUS, WAVEFORM DECOMPRESSING APPARATUS, AND METHOD OF PRODUCING COMPRESSED DATA  
In a waveform compressing apparatus, a trial mode selecting portion selects a trial mode having the highest compression rate from a plurality of candidate modes which have not been selected before...
US20090144064 Local Pitch Control Based on Seamless Time Scale Modification and Synchronized Sampling Rate Conversion  
This invention locally controls the pitch of speech and audio signals. The invention is based on a seamless time scale modification (S-TSM) scheme connected to a synchronized sampling rate...
US20100250265 Low-Complexity Spectral Analysis/Synthesis Using Selectable Time Resolution  
The signal processing is based on the concept of using a time-domain aliased (12, TDA) frame as a basis for time segmentation (14) and spectral analysis (16), performing segmentation in time based...
US20080285599 Control Mechanism for Adaptive Play-Out with State Recovery  
A control logic means preferably for a receiver comprising a jitter buffer means adapted to receive and buffer incoming frames or packets and to extract data frames from the received packets, a...
US20080162151 METHOD AND APPARATUS TO VARY AUDIO PLAYBACK SPEED  
An audio playback speed control method and apparatus to control an audio playback speed using an optimal frame length with a small amount of calculation. The audio playback method includes...
US20070250324 Audio-Signal Time-Axis Expansion/Compression Method and Device  
An audio-signal time-axis expansion/compression method for subjecting an audio signal to time-axis expansion/compression at a time domain includes the steps of: cross-fade-signal generating...
US20080126104 Multichannel Decorrelation In Spatial Audio Coding  
Each of N audio signals are filtered with a unique decorrelating filter (38) characteristic, the characteristic being a causal linear time-invariant characteristic in the time domain or the...
US20090063140 ENCODING AND DECODING OF AUDIO SIGNALS USING COMPLEX-VALUED FILTER BANKS  
An encoder (109) comprises a receiver (201) which receives a time domain audio signal. A filter bank (203) generates a first subband signal from the time domain audio signal where the first...
US20070078662 Seamless audio speed change based on time scale modification  
This invention involves time-scale modification of audio signals. The invention describes overlap and add time scale modification with variable input and output buffer sizes. Seamless speed change...
US20070083377 Time scale modification of audio using bark bands  
This invention involves time-scale modification of audio signals. In this invention the input audio signal is separated into a plurality of frequency bands selected according to a Bark scale where...
US20080080614 DIGITAL SCALING  
Computer program products and arrangements to process digital data are contemplated. The digital data may contain values, representing quantities of a wave form over regions. Embodiments include...
US20110257984 System and Method for Audio Coding and Decoding  
In accordance with an embodiment, a method of generating an encoded audio signal, the method includes estimating a time-frequency energy of an input audio signal from a time-frequency filter bank,...
US20090248425 AUDIO WAVE FIELD ENCODING  
An encoder/decoder for multi-channel audio data, and in particular for audio reproduction through wave field synthesis. The encoder comprises a two-dimensional filter-bank to the multi-channel...
US20060047522 Method, apparatus and computer program to provide predictor adaptation for advanced audio coding (AAC) system  
This invention provides a method, an apparatus and a computer program to process an audio signal. The method includes encoding an audio signal in accordance with a first type of encoding at least...
US20050222847 System and method for time domain audio slow down, while maintaining pitch  
A system and method for slowing down an audio signal while maintaining the same pitch as the original audio signal. The slowing down being done by a decoder. The method involves replicating frames...
US20100004937 Method for time scaling of a sequence of input signal values  
The invention relates to a digital signal processing technique that changes the length of an audio signal and, thus, effectively its play-out speed. This is used for frame rate conversion or sound...
US20110046966 FREQUENCY BAND SCALE FACTOR DETERMINATION IN AUDIO ENCODING BASED UPON FREQUENCY BAND SIGNAL ENERGY  
A method of encoding a time-domain audio signal is presented. In the method, an electronic device receives the time-domain audio signal. The time-domain audio signal is transformed into a...
US20060074694 Method for extracting periodic signal components, and apparatus for this purpose  
A method for extracting periodic signal components from at least one superimposed signal has the following steps: the superimposed signal is split into subsegments of the same period lengths (T1,...
US20150154979 AUTOMATED PERFORMANCE TECHNOLOGY USING AUDIO WAVEFORM DATA  
In order to play waveform data back at a variable performance tempo by using waveform data which complies with a desired reference tempo, the present invention performs a...
Matches 1 - 50 out of 84 1 2 >