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US20110035225 ENTROPY CODING USING ESCAPE CODES TO SWITCH BETWEEN PLURAL CODE TABLES  
An audio encoder performs adaptive entropy encoding of audio data. For example, an audio encoder switches between variable dimension vector Huffman coding of direct levels of quantized audio data...
US20110307261 Quantizing a Joint-Channel-Encoded Audio Signal  
Provided are, among other things, systems, methods and techniques for quantizing a joint-channel-encoded audio signal, e.g., by: (a) obtaining an audio signal that includes a plurality of...
US20110224992 SET-TOP-BOX WITH INTEGRATED ENCODER/DECODER FOR AUDIENCE MEASUREMENT  
Systems and methods are disclosed for encoding audio in a set-top box that is invoked by a user when listening to a broadcast audio signal from a radio, TV, streaming or other audio device. A...
US20140188487 METHOD AND SYSTEM FOR ROBUST AUDIO HASHING  
Method and system for channel-invariant robust audio hashing, the method comprising: a robust hash extraction step wherein a robust hash is extracted from audio content, said step comprising:...
US20140058735 Artificial Neural Network Based System for Classification of the Emotional Content of Digital Music  
A system for classification of the emotional content of music is provided. An encoder receives a digital audio recording of a piece of music, and encodes it using musical notes and associated...
US20110218797 ENCODER FOR AUDIO SIGNAL INCLUDING GENERIC AUDIO AND SPEECH FRAMES  
A method for encoding audio frames by producing a first frame of coded audio samples by coding a first audio frame in a sequence of frames, producing at least a portion of a second frame of coded...
US20150170659 METHOD AND APPARATUS FOR ENHANCING THE MODULATION INDEX OF SPEECH SOUNDS PASSED THROUGH A DIGITAL VOCODER  
A method and apparatus for enhancing modulation of certain speech sounds, such as trill sounds, are provided for radios which utilize digital vocoders. A digitized speech stream is sampled and the...
US20110313553 PREDICTIVE RESAMPLER SCHEDULER ALGORITHM  
A predictive resampler scheduler algorithm may be provided. An audio frame may be received from a producer. The audio frame may be transmitted to a consumer and a delay between receiving the audio...
US20110218799 DECODER FOR AUDIO SIGNAL INCLUDING GENERIC AUDIO AND SPEECH FRAMES  
A method for decoding audio frames includes producing a first frame of coded audio samples, producing at least a portion of a second frame of coded audio samples, generating audio gap filler...
US20120123782 SPEECH SYNTHESIS AND CODING METHODS  
The present invention is related to a method for coding excitation signal of a target speech comprising the steps of: extracting from a set of training normalised residual frames, a set of...
US20140088974 APPARATUS AND METHOD FOR AUDIO FRAME LOSS RECOVERY  
A method and apparatus provides for frame loss recovery following a loss of a frame in an audio codec. The lost frame is identified. Estimated linear predictive coefficients of a previous...
US20140297291 METADATA DRIVEN DYNAMIC RANGE CONTROL  
A system for encoding and applying Dynamic Range Control/Compression (DRC) gain values to a piece of sound program content is described. In particular, a set of DRC gain values representing a DRC...
US20110125505 Method and Device for Efficient Frame Erasure Concealment in Speech Codecs  
A method and device for concealing frame erasures caused by frames of an encoded sound signal erased during transmission from an encoder to a decoder and for recovery of the decoder after frame...
US20080086311 Speech Recognition, and Related Systems  
In one arrangement, information useful in understanding the content of user speech (e.g., phonemes identified by a speech recognition algorithm, data indicating the gender of the speaker, etc.) is...
US20120035941 QUANTIZATION AND INVERSE QUANTIZATION FOR AUDIO  
An audio encoder and decoder use architectures and techniques that improve the efficiency of quantization (e.g., weighting) and inverse quantization (e.g., inverse weighting) in audio coding and...
US20100318368 QUANTIZATION AND INVERSE QUANTIZATION FOR AUDIO  
An audio encoder and decoder use architectures and techniques that improve the efficiency of quantization (e.g., weighting) and inverse quantization (e.g., inverse weighting) in audio coding and...
US20110173010 Audio Encoder and Decoder for Encoding and Decoding Audio Samples  
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...
US20120284034 METHOD FOR REDUCTION OF ALIASING INTRODUCED BY SPECTRAL ENVELOPE ADJUSTMENT IN REAL-VALUED FILTERBANKS  
The present invention proposes a new method for improving the performance of a real-valued filterbank based spectral envelope adjuster. By adaptively locking the gain values for adjacent channels...
US20120284033 METHOD FOR REDUCTION OF ALIASING INTRODUCED BY SPECTRAL ENVELOPE ADJUSTMENT IN REAL-VALUED FILTERBANKS  
The present invention proposes a new method for improving the performance of a real-valued filterbank based spectral envelope adjuster. By adaptively locking the gain values for adjacent channels...
US20110054914 Method for Reduction of Aliasing Introduced by Spectral Envelope Adjustment in Real-Valued Filterbanks  
The present invention proposes a new method for improving the performance of a real-valued filterbank based spectral envelope adjuster. By adaptively locking the gain values for adjacent channels...
US20120296656 ADAPTIVE CONTROLLER FOR A CONFIGURABLE AUDIO CODING SYSTEM  
An adaptive controller for a configurable audio coding system comprising a fuzzy logic controller modified to use reinforcement learning to create an intelligent control system. With no knowledge...
US20090157397 Voice Rule-Synthesizer and Compressed Voice-Element Data Generator for the same  
A voice rule-synthesizer synthesizes a voice waveform based on the voice data stored in a database, which stores a large number of compressed voice data sections in a data stream. Each voice data...
US20150170655 SYSTEMS AND METHODS OF BLIND BANDWIDTH EXTENSION  
Systems and methods of performing blind bandwidth extension are disclosed. In an embodiment, a method includes receiving, at a decoder of a speech vocoder, a set of low-band parameters as part of...
US20120232911 OPTIMIZATION OF MP3 AUDIO ENCODING BY SCALE FACTORS AND GLOBAL QUANTIZATION STEP SIZE  
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...
US20130339038 Post-Quantization Gain Correction in Audio Coding  
A gain adjustment apparatus (60) for use in decoding of audio that has been encoded with separate gain and shape representations includes an accuracy meter (62) configured to estimate an accuracy...
US20130054251 AUTOMATIC DETECTION OF AUDIO COMPRESSION PARAMETERS  
For a media clip that includes audio content, a novel method for performing dynamic range compression of the audio content is presented. The method performs an analysis of the audio content. Based...
US20120303375 AUDIO DECODING USING VARIABLE-LENGTH CODEBOOK APPLICATION RANGES  
Provided are, among other things, systems, methods and techniques for decoding an audio signal from a frame-based bit stream. At least one frame includes processing information pertaining to the...
US20140365230 METHOD AND APPARATUS FOR MAXIMIZING A LIMITED SET OF IDENTIFIERS FOR AUDIO WATERMARKING  
A method and apparatus for encoding identifiers into a media item, the method including: embedding a sequence of identifiers equally and in order over a duration of a content of the media item;...
US20120310654 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...
US20140074484 ENCODER AND DECODER DRIVER DEVELOPMENT TECHNIQUES  
A codec architecture including an audio wave driver and a coded topology driver. The audio wave driver is communicatively coupled to an audio engine and an analog audio codec. The coded topology...
US20110178809 CRITICAL SAMPLING ENCODING WITH A PREDICTIVE ENCODER  
A method for encoding and decoding a digital audio signal is provided, said method comprising the steps of: encoding a first sequence of samples of the digital signal according to a transform...
US20120102538 METHODS AND APPARATUS FOR DECODING MULTIPLE INDEPENDENT AUDIO STREAMS USING A SINGLE AUDIO DECODER  
An embodiment of the present invention discloses a system and method for decoding multiple independent encoded audio streams using a single decoder. The system includes one or more parsers, a...
US20120253827 ADVANCED ENCODING OF MUSIC FILES  
Example embodiments allow for the creation, distribution, and use of flexible media formats. Example embodiments may allow individual content files to be rendered in multiple formats and versions....
US20100299151 Advanced Encoding Of Music Files  
Example embodiments allow for the creation, distribution, and use of flexible media formats. Example embodiments may allow individual content files to be rendered in multiple formats and versions....
US20130159004 Seamless Playback of Successive Multimedia Files  
The present document relates to methods and systems for encoding and decoding multimedia files. In particular, the present document relates to methods and systems for encoding and decoding a...
US20110093276 APPARATUS  
A method comprising receiving at a user equipment encrypted content. The content is stored in said user equipment in an encrypted form. At least one key for decryption of said stored encrypted...
US20100324912 Context-based arithmetic encoding apparatus and method and context-based arithmetic decoding apparatus and method  
Disclosed are a context-based arithmetic encoding apparatus and method and a context-based arithmetic decoding apparatus and method. The context-based arithmetic decoding apparatus may determine a...
US20140257825 ENCODING APPARATUS AND ENCODING METHOD  
Provided is an encoding apparatus. A threshold value calculating unit (32) calculates a threshold value from a statistical amount of conversion factors of an extended band. A representative...
US20120330670 AUDIO ENCODER, AUDIO DECODER, METHOD FOR ENCODING AN AUDIO INFORMATION, METHOD FOR DECODING AN AUDIO INFORMATION AND COMPUTER PROGRAM USING AN ITERATIVE INTERVAL SIZE REDUCTION  
An audio decoder has an arithmetic decoder for providing decoded spectral values on the basis of an arithmetically-encoded representation and a frequency-domain-to-time-domain converter for...
US20130159005 AUDIO DECODING DEVICE, AUDIO DECODING METHOD, AUDIO DECODING PROGRAM, AUDIO ENCODING DEVICE, AUDIO ENCODING METHOD, AND AUDIO ENCODING PROGRAM  
In an audio decoding device of an embodiment, a plurality of decoding units execute different audio decoding schemes, respectively, to generate audio signals from coded sequences. An extraction...
US20110060595 APPARATUS AND METHOD FOR ADAPTIVE AUDIO CODING  
An audio encoder capable of implementing a plurality of encoding functions, wherein an adaptation controller adjusts the implementation of the encoding functions in response to feedback received...
US20110060594 APPARATUS AND METHOD FOR ADAPTIVE AUDIO CODING  
An audio encoder capable of implementing a plurality of encoding functions, wherein an adaptation controller adjusts the implementation of the encoding functions in response to feedback received...
US20130030798 METHOD AND APPARATUS FOR AUDIO CODING AND DECODING  
An encoder and decoder for processing an audio signal including generic audio and speech frames are provided herein. During operation, two encoders are utilized by the speech coder, and two...
US20130317832 AUDIO FRAME TIMING CORRECTION METHOD AND WIRELESS DEVICE  
An audio frame timing correction method and a wireless device are provided. A controller generates a reference clock for audio coding/decoding such that the reference clock runs fast and moved...
US20150248888 USER PROFILE BASED AUDIO ADJUSTMENT TECHNIQUES  
Embodiments are directed toward user profile based audio adjustment techniques. The techniques are used to render various audio and/or audio/video content having different audio output parameter...
US20140288940 METHOD AND SYSTEM FOR GENERATING AN AUDIO METADATA QUALITY SCORE  
A method including the steps of assessing at least two metadata parameters associated with an audio bitstream (e.g., an encoded Dolby Digital (AC-3), Dolby Digital Plus, or Dolby E bitstream),...
US20100324911 CVSD DECODER STATE UPDATE AFTER PACKET LOSS  
A system and method is described for updating the state of an audio decoder, such as a CVSD decoder, after a packet loss has occurred. In response to the loss of a packet, the system and method...
US20110022399 Auto Detection Method for Frame Header  
A method for auto-detecting a frame header is provided. By searching and comparing content of input frames and predetermined sync words, decoding efficiency is increased and the probability of...
US20130226594 AUDIO ENCODER, AUDIO DECODER, METHOD FOR ENCODING AND AUDIO INFORMATION, METHOD FOR DECODING AN AUDIO INFORMATION AND COMPUTER PROGRAM USING AN OPTIMIZED HASH TABLE  
An audio decoder includes an arithmetic decoder for providing decoded spectral values on the basis of an arithmetically encoded representation thereof, and a frequency-domain-to-time-domain...
US20110125506 RATE-DISTORTION OPTIMIZATION FOR ADVANCED AUDIO CODING  
A method for optimization of rate-distortion for Advanced Audio Coding (AAC). The method provides for the identification of quantized spectral coefficient sequences for optimization of...