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US20120095749 MULTI-FUNCTIONAL AUDIO DISTRIBUTION SYSTEM AND METHOD FOR MOVIE THEATERS AND OTHER PUBLIC AND PRIVATE VENUES  
Audiovisual presentation methods, systems and apparatus for improving and enhancing the listening experience of attendees of audiovisual presentations. An exemplary audiovisual presentation system...
US20120029927 ENHANCING PERCEPTUAL PERFORMANCE OF SBR AND RELATED HFR CODING METHODS BY ADAPTIVE NOISE-FLOOR ADDITION AND NOISE SUBSTITUTION LIMITING  
Methods and an apparatus for enhancement of source coding systems utilizing high frequency reconstruction (HFR) are introduced. The problem of insufficient noise contents is addressed in a...
US20100324917 Method and Apparatus for Encoding and Decoding  
An encoding method includes extracting background noise characteristic parameters within a hangover period; for a first superframe after the hangover period, performing background noise encoding...
US20110137663 ENCODING APPARATUS AND DECODING APPARATUS FOR TRANSFORMING BETWEEN MODIFIED DISCRETE COSINE TRANSFORM-BASED CODER AND HETERO CODER  
An encoding apparatus and a decoding apparatus in a transform between a Modified Discrete Cosine Transform (MDCT)-based coder and a hetero coder are provided. The encoding apparatus may encode...
US20120143599 WARPED SPECTRAL AND FINE ESTIMATE AUDIO ENCODING  
A warped spectral estimate of an original audio signal can be used to encode a representation of a fine estimate of the original signal. The representation of the warped spectral estimate and the...
US20120231768 METHOD AND SYSTEM TO PLAY BACKGROUND MUSIC ALONG WITH VOICE ON A CDMA NETWORK  
A method and system for compressing an audio signal. The method includes receiving a segment of an audio signal and selectively disabling noise suppression for the received segment. The segment is...
US20120265523 FRAME ERASURE CONCEALMENT FOR A MULTI RATE SPEECH AND AUDIO CODEC  
An audio coding terminal and method is provided. The terminal includes a coding mode setting unit to set an operation mode, from plural operation modes, for input audio coding by a codec,...
US20060136229 Advanced methods for interpolation and parameter signalling  
A parameter calculator calculates lower resolution parametric information and interpolation information. On a decoder-side, an upmixer is used for generating the output channels. The upmixer uses...
US20110046965 Transient Detector and Method for Supporting Encoding of an Audio Signal  
A transient detector (100) analyzes (110) a given frame n of the input audio signal to determine, based on audio signal characteristics of the given frame n, a transient hangover indicator for a...
US20100063828 STREAM SYNTHESIZING DEVICE, DECODING UNIT AND METHOD  
To provide an enhanced true-to-life atmosphere enjoyed in multipoint connecting, and reduce a calculation load at a multipoint connection unit, as well. A stream synthesizing device includes an...
US20090125313 AUDIO CODING USING UPMIX  
A method for decoding a multi-audio-object signal having audio signals of first and second types encoded therein, the multi-audio-object signal having a downmix signal and side information having...
US20060111919 Computer system and method of outputting beep sound of computer system  
Embodiments of a computer system and method thereof that can generate a beep sound (e.g., buzzer speaker sound) using an external speaker or the like. The computer system can include a south...
US20090125314 AUDIO CODING USING DOWNMIX  
An audio decoder for decoding a multi-audio-object signal having an audio signal of a first type and an audio signal of a second type encoded therein is described, the multi-audio-object signal...
US20110145004 BITRATE CONSTRAINED VARIABLE BITRATE AUDIO ENCODING  
A hybrid audio encoding technique incorporates both ABR, or CBR, and VBR encoding modes. For each audio coding block, after a VBR quantization loop meets the NMR target, a second quantization loop...
US20120082319 SPATIAL AUDIO ENCODING AND REPRODUCTION OF DIFFUSE SOUND  
A method and apparatus processes multi-channel audio by encoding, transmitting or recording “dry” audio tracks or “stems” in synchronous relationship with time-variable metadata controlled by a...
US20110060598 ADAPTIVE GROUPING OF PARAMETERS FOR ENHANCED CODING EFFICIENCY  
The present invention is based on the finding that parameters including: a first set of parameters of a representation of a first portion of an original signal and a second set of parameters of a...
US20070112573 Sinusoid selection in audio encoding  
A method of encoding (1) an audio signal (x(t)) by representing (12) at least part of said audio signal by a plurality of sinusoids. The method comprising the steps of performing an analysis on a...
US20070038439 Audio signal generation  
An output audio signal (L, R) is generated based on an input audio signal, the input audio signal comprising a plurality of input subband signals (N). The input subband signals are delayed in a...
US20090292544 Binaural spatialization of compression-encoded sound data  
The invention is aimed at improving the quality of the filtering by transfer functions of HRTF type of signals (L, R) compressed in a transformed domain, for binaural playing on two channels...
US20150194160 AUDIO ENCODER AND AUDIO DECODER  
An audio encoder for encoding segments of coefficients, the segments of coefficients representing different time or frequency resolutions of a sampled audio signal, the audio encoder including a...
US20130117032 TRANSCODER WITH DYNAMIC AUDIO CHANNEL CHANGING  
A transcoder is arranged to transcode a stream having a dynamically changing audio configuration, such as a changing number of audio channels. The transcoder can receive an input stream whereby...
US20080008323 Concept for Combining Multiple Parametrically Coded Audio Sources  
According to the present invention, multiple parametrically encoded audio signals can be efficiently combined using an audio signal generator, which generates an audio output signal by combining...
US20130096931 SYSTEMS AND METHODS FOR REDUCING AUDIO DISTURBANCE ASSOCIATED WITH CONTROL MESSAGES IN A BITSTREAM  
The embodiments described herein are directed to systems and methods for transmitting audio data and control segment in a single bitstream and reducing audio disturbance associated with the...
US20080046252 Time-Warping of Decoded Audio Signal After Packet Loss  
A technique is described for use in a decoder configured to decode a series of frames representing an encoded audio signal. The technique is for transitioning between a lost frame and one or more...
US20080091440 Sound Encoder And Sound Encoding Method  
A sound encoder having an improved quantization performance while suppressing an increase of the bit rate to a lowest level. In a second layer encoding unit (40), a standard deviation calculating...
US20110054917 APPARATUS AND METHOD FOR STRUCTURING BITSTREAM FOR OBJECT-BASED AUDIO SERVICE, AND APPARATUS FOR ENCODING THE BITSTREAM  
Provided are a method and apparatus for structuring a bitstream for an object-based audio service, and an apparatus for encoding the bitstream. A method of structuring a bitstream, may include:...
US20070174063 Shape and scale parameters for extended-band frequency coding  
An audio encoder performs frequency extension coding that comprises determining one or more shape parameters using a displacement vector that corresponds to a displacement of an even number (e.g.,...
US20110106546 SCALABLE LOSSLESS AUDIO CODEC AND AUTHORING TOOL  
An audio codec losslessly encodes audio data into a sequence of analysis windows in a scalable bitstream. This is suitably done by separating the audio data into MSB and LSB portions and encoding...
US20090319282 DIFFUSE SOUND SHAPING FOR BCC SCHEMES AND THE LIKE  
In one embodiment, C input audio channels are encoded to generate E transmitted audio channel(s), where one or more cue codes are generated for two or more of the C input channels, and the C input...
US20120226506 METHOD AND APPARATUS FOR GENERATING AN ENHANCEMENT LAYER WITHIN A MULTIPLE-CHANNEL AUDIO CODING SYSTEM  
A method and apparatus are disclosed for generating a coded audio signal based on a multiple channel audio input signal. A balance factor having balance factor components each associated with an...
US20090157413 SPEECH ENCODING APPARATUS AND SPEECH ENCODING METHOD  
There is provided an audio encoding device capable of maintaining continuity of spectrum energy and preventing degradation of audio quality even when a spectrum of a low range of an audio signal...
US20080294446 Layer based scalable multimedia datastream compression  
Source signals, such as audio and/or video data, are encoded into multiple, consecutive frequency bands. These bands are referred to as coding layers. Rather than performing complex bit-slice...
US20100268542 APPARATUS AND METHOD OF AUDIO ENCODING AND DECODING BASED ON VARIABLE BIT RATE  
An apparatus and method of audio encoding and decoding based on a Variable Bit Rate (VBR) is provided. The audio encoding and decoding apparatus and method may determine an optimum bit rate per...
US20080189120 METHOD AND APPARATUS FOR PARAMETRIC ENCODING AND PARAMETRIC DECODING  
A method of and apparatus for parametric encoding and parametric decoding are provided. According to the method and apparatus, not all parameters for all component signals are generated and...
US20110022402 ENHANCED CODING AND PARAMETER REPRESENTATION OF MULTICHANNEL DOWNMIXED OBJECT CODING  
An audio object coder for generating an encoded object signal using a plurality of audio objects includes a downmix information generator for generating downmix information indicating a...
US20110106547 AUDIO SIGNAL COMPRESSION DEVICE, AUDIO SIGNAL COMPRESSION METHOD, AUDIO SIGNAL DEMODULATION DEVICE, AND AUDIO SIGNAL DEMODULATION METHOD  
When encoding an audio signal, it is possible to efficiently encode the audio signal while maintaining high register signal components, and prevent deterioration of sound quality of decoded...
US20130132100 APPARATUS AND METHOD FOR CODEC SIGNAL IN A COMMUNICATION SYSTEM  
The present invention relates to a codec apparatus and method for coding/decoding speech and audio signals in a communication system. In accordance with the present invention, a speech and audio...
US20070078661 Configurable system for performing repetitive actions and method for configuring and operating same  
In some embodiments, a data processing system including an operation unit including circuitry configurable to perform any selected one of a number of operations on data (e.g., audio data) and a...
US20090012797 Method and apparatus for encoding and decoding an audio signal using adaptively switched temporal resolution in the spectral domain  
Perceptual audio codecs make use of filter banks and MDCT in order to achieve a compact representation of the audio signal, by removing redundancy and irrelevancy from the original audio signal....
US20050283370 System (s), method (s) and apparatus for reducing on-chip memory requirements for audio decoding  
Presented herein are system(s), method(s), and apparatus for reducing on-chip memory requirements for audio decoding. In one embodiment, there is presented a method for decoding encoded audio...
US20100153122 MULTI-STAGING RECURSIVE AUDIO FRAME-BASED RESAMPLING AND TIME MAPPING  
A multi-stage recursive sample rate converter (“SRC”) typically embodied as digital signal processor provides for an efficient structure for converting digital audio samples at one frequency, such...
US20110178810 AUDIO SIGNAL ENCODING OR DECODING  
Encoding an audio signal is provided wherein the audio signal includes a first audio channel and a second audio channel, the encoding comprising subband filtering each of the first audio channel...
US20080189116 Method and System for Dual Mode Subband Acoustic Echo Canceller with Integrated Noise Suppression  
Certain aspects of a method and system for a dual mode subband acoustic echo canceller with integrated noise suppression may include splitting an input signal into a lowband component and a...
US20110060599 METHOD AND APPARATUS FOR PROCESSING AUDIO SIGNALS  
Methods and apparatuses for encoding and decoding an audio signal are provided, a method of encoding an audio signal including: receiving the audio signal including information about a moving...
US20170178660 Audio Signal Discriminator and Coder  
The invention relates to a codec and a discriminator and methods therein for audio signal discrimination and coding. Embodiments of a method performed by an encoder comprises, for a segment of the...
US20170178653 Reconstructing Audio Signals with Multiple Decorrelation Techniques  
A method performed in an audio decoder for decoding M encoded audio channels representing N audio channels is disclosed. The method includes receiving a bitstream containing the M encoded audio...
US20170178652 Reconstructing Audio Signals with Multiple Decorrelation Techniques  
A method performed in an audio decoder for decoding M encoded audio channels representing N audio channels is disclosed. The method includes receiving a bitstream containing the M encoded audio...
US20170178651 Reconstructing Audio Signals with Multiple Decorrelation Techniques  
A method performed in an audio decoder for decoding M encoded audio channels representing N audio channels is disclosed. The method includes receiving a bitstream containing the M encoded audio...
US20170178650 Reconstructing Audio Signals with Multiple Decorrelation Techniques  
A method performed in an audio decoder for decoding M encoded audio channels representing N audio channels is disclosed. The method includes receiving a bitstream containing the M encoded audio...
US20170162208 SYSTEM FOR PERCEIVED ENHANCEMENT AND RESTORATION OF COMPRESSED AUDIO SIGNALS  
A system for processing compressed audio includes a signal enhancer module configured to generate one or more signal treatments. The one or more signal treatments may be generated by the signal...

Matches 1 - 50 out of 90 1 2 >