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9042558 Decoding apparatus, decoding method, encoding apparatus, encoding method, and editing apparatus  
A decoding apparatus (10) is disclosed which includes: a storing means (11) for storing encoded audio signals including multi-channel audio signals; a transforming means (40) for transforming the...
9043201 Method and apparatus for processing audio frames to transition between different codecs  
A method (700, 800) and apparatus (100, 200) processes audio frames to transition between different codecs. The method can include producing (720), using a first coding method, a first frame of...
9042560 Sparse audio  
A method comprising: sampling received audio at a first rate to produce a first audio signal; transforming the first audio signal into a sparse domain to produce a sparse audio signal; re-sampling...
9031850 Audio stream combining apparatus, method and program  
A stream combining apparatus is provided, comprising an input unit that receives the input of first group access units and second group access units from two streams that are generated by overlap...
9015053 Audio coding device and audio coding method, audio decoding device and audio decoding method, and program  
There is provided an audio coding device including a first windowing part that multiplies an audio signal by a first window function, a second windowing part that multiplies the audio signal by a...
9009032 Method and system for performing sample rate conversion  
A method and system for performing sample rate conversion is provided. The method may include configuring a system to convert a sample rate of a first audio channel of a plurality of audio...
9009036 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...
8996362 Device and method for a bandwidth extension of an audio signal  
For a bandwidth extension of an audio signal, in a signal spreader the audio signal is temporally spread by a spread factor greater than 1. The temporally spread audio signal is then supplied to a...
8983852 Efficient combined harmonic transposition  
The present document relates to audio coding systems which make use of a harmonic transposition method for high frequency reconstruction (HFR), and to digital effect processors, e.g. so-called...
8983851 Noise filer, noise filling parameter calculator encoded audio signal representation, methods and computer program  
A noise filler for providing a noise-filled spectral representation of an audio signal on the basis of an input spectral representation of the audio signal has a spectral region identifier...
8977557 Method, medium, and apparatus encoding and/or decoding multichannel audio signals  
A method, medium, and apparatus encoding and/or decoding a multichannel audio signal. The method includes detecting the type of spatial extension data included in an encoding result of an audio...
8977543 Apparatus for quantizing linear predictive coding coefficients, sound encoding apparatus, apparatus for de-quantizing linear predictive coding coefficients, sound decoding apparatus, and electronic device therefore  
A quantizing apparatus is provided that includes a quantization path determiner that determines a path from a first path not using inter-frame prediction and a second path using the inter-frame...
8972248 Band broadening apparatus and method  
A band broadening apparatus includes a processor configured to analyze a fundamental frequency based on an input signal bandlimited to a first band, generate a signal that includes a second band...
8972247 Selection of speech encoding scheme in wireless communication terminals  
A method for communication includes receiving modulated signals, which convey encoded speech. A measure of information entropy associated with the received signals is estimated. A speech encoding...
8972270 Method and an apparatus for processing an audio signal  
A method for processing an audio signal is disclosed. The method for processing an audio signal includes frequency-transforming an audio signal to generate a frequency-spectrum, deciding a...
8964994 Encoding of multichannel digital audio signals  
A method for coding a multi-channel audio signal representing a sound scene comprising a plurality of sound sources is provided. This method comprises decomposing the multi-channel signal into...
8959015 Apparatus for encoding and decoding of integrated speech and audio  
Provided is an apparatus for integrally encoding and decoding a speech signal and an audio signal. An encoding apparatus for integrally encoding a speech signal and an audio signal, may include: a...
8942989 Speech coding of principal-component channels for deleting redundant inter-channel parameters  
Disclosed is an audio encoding device which removes unnecessary inter-channel parameters from the subject to be encoded, improving the encoding efficiency thereby. In this audio encoding device, a...
8938387 Audio encoder and decoder  
The present invention teaches a new audio coding system that can code both general audio and speech signals well at low bit rates. A proposed audio coding system comprises linear prediction unit...
8935156 Enhancing performance of spectral band replication and related high frequency reconstruction coding  
The present proposes new methods and an apparatus for enhancement of source coding systems utilizing high frequency reconstruction (HFR). It addresses the problem of insufficient noise contents in...
8930202 Audio entropy encoder/decoder for coding contexts with different frequency resolutions and transform lengths  
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...
8930200 Vector joint encoding/decoding method and vector joint encoder/decoder  
A vector joint encoding/decoding method and a vector joint encoder/decoder are provided, more than two vectors are jointly encoded, and an encoding index of at least one vector is split and then...
8924220 Multiband compressor  
In a multiband compressor 100, a level calculation unit 121 calculates a signal level inputted for each of bands, a gain calculation unit 122 calculates a gain value from the calculated signal...
8924200 Audio signal bandwidth extension in CELP-based speech coder  
A method for decoding an audio signal in a decoder having a CELP-based decoder element including a fixed codebook component, at least one pitch period value, and a first decoder output, wherein a...
8924222 Systems, methods, apparatus, and computer-readable media for coding of harmonic signals  
A scheme for coding a set of transform coefficients that represent an audio-frequency range of a signal uses a harmonic model to parameterize a relationship between the locations of regions of...
8924816 Method and system to improve the performance and/or reliability of a solid-state drive  
A method and system to improve the performance and/or reliability of a solid-state drive (SSD). In one embodiment of the invention, the SSD has logic to compress a block of data to be stored in...
8903729 System and method for non-destructively normalizing loudness of audio signals within portable devices  
Many portable playback devices cannot decode and playback encoded audio content having wide bandwidth and wide dynamic range with consistent loudness and intelligibility unless the encoded audio...
8898067 Subband block based harmonic transposition  
The present document relates to audio source coding systems which make use of a harmonic transposition method for high frequency reconstruction (HFR), as well as to digital effect processors, e.g....
8892449 Audio encoder/decoder with switching between first and second encoders/decoders using first and second framing rules  
An audio encoder for encoding audio samples has a first time domain aliasing introducing encoder configured to decode audio samples in a first encoding domain and having a first framing rule, a...
8891775 Method and encoder for processing a digital stereo audio signal  
The invention discloses a method and an encoder for processing a digital audio stereo signal. A digital audio encoder for coding such audio signal comprises a predictive Temporal Noise Shaping...
8886548 Audio encoding device, decoding device, method, circuit, and program  
Provided is an encoding device (1) including: a pitch contour analysis unit (101) which detects information, a dynamic time-warping unit (102) which generates, based on the information, pitch...
8886523 Audio decoding based on audio class with control code for post-processing modes  
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,...
8880413 Binaural spatialization of compression-encoded sound data utilizing phase shift and delay applied to each subband  
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...
8880415 Hierarchical encoding of time-series data features  
A computing device identifies a first codeword in a first codebook to represent short-timescale information of frames in a time-based data item segmented at intervals and identifies a second...
8880414 Low bit rate codec  
The present invention relates to improvements of predictive encoding/decoding operations performed on a signal which is transmitted over a packet switched network. The signal is encoded on a block...
8880107 Systems and methods for monitoring communications  
In one embodiment, a method provides for monitoring and analyzing communications of a monitored user on behalf of a monitoring user, to determine whether the communication includes a violation....
8874450 Hierarchical audio frequency encoding and decoding method and system, hierarchical frequency encoding and decoding method for transient signal  
Hierarchical audio coding and decoding method and system and hierarchical audio coding and decoding method for transient signals are provided. In the present invention, by introducing a processing...
8874449 Method and apparatus for downmixing multi-channel audio signals  
Downmixing multi-channel audio signals to target channels by pre-downmixing frequency coefficients that are encoded using a most frequently used block type in stereo channels in the frequency...
8868432 Audio signal bandwidth extension in CELP-based speech coder  
A method for decoding an audio signal having a bandwidth that extends beyond a bandwidth of a CELP excitation signal in an audio decoder including a CELP-based decoder element. The method includes...
8867753 Apparatus, method and computer program for upmixing a downmix audio signal  
An apparatus for upmixing a downmix audio signal describing one or more downmix audio channels into an upmixed audio signal describing a plurality of upmixed audio channels includes an upmixer...
8862480 Audio encoding/decoding with aliasing switch for domain transforming of adjacent sub-blocks before and subsequent to windowing  
An apparatus for encoding an audio signal includes the windower for windowing a first block of the audio signal using an analysis window having an aliasing portion and a further portion. The...
8862465 Determining pitch cycle energy and scaling an excitation signal  
An electronic device for determining a set of pitch cycle energy parameters is described. The electronic device includes a processor and executable instructions stored in memory. The electronic...
8849654 Method, device and system for voice encoding/decoding  
A method, a device and a system for voice encoding/decoding are disclosed in the present invention. The method includes: assembling an input pulse code modulation signal into one signal according...
8849678 ***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Method, medium, and apparatus encoding and/or decoding multichannel audio signals
 
A method, medium, and apparatus encoding and/or decoding a multichannel audio signal. The method includes detecting the type of spatial extension data included in an encoding result of an audio...
8843380 Method and apparatus for encoding residual signals and method and apparatus for decoding residual signals  
Encoding and decoding of residual signals are provided. In a method of encoding a residual signal of an audio signal, the residual signal is divided into a plurality of sections having different...
8843378 Multi-channel synthesizer and method for generating a multi-channel output signal  
A multi-channel synthesizer includes a post processor for determining post processed reconstruction parameters or quantities derived from the reconstruction parameter for an actual time portion of...
8838441 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...
8831958 Method and an apparatus for a bandwidth extension using different schemes  
An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes receiving a spectral data of lower band and type information indicating a particular...
8831960 Audio encoding device, audio encoding method, and computer-readable recording medium storing audio encoding computer program for encoding audio using a weighted residual signal  
An audio encoding device includes a time-frequency converting unit that conducts time-frequency conversion of channel signals included in an audio signal having a plurality of channels in frame...
8831961 Preprocessing method, preprocessing apparatus and coding device  
The present disclosure relates to coding and decoding technologies, and discloses a preprocessing method, a preprocessing apparatus, and a coding device. The preprocessing method includes:...