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US20140122063 METHOD AND SYSTEM FOR ESTIMATING PHYSIOLOGICAL PARAMETERS OF PHONATION  
The invention consists of a method and computing system for recording and analyzing the voice which allows a series of parameters of phonation to be calculated. These transmit relevant information...
US20120201405 VIRTUAL SURROUND FOR HEADPHONES AND EARBUDS HEADPHONE EXTERNALIZATION SYSTEM  
A combination of techniques for modifying sound provided to headphones to simulate a surround-sound speaker environment with listener adjustments. In one embodiment, Head Related Transfer...
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...
US20110153313 Method And Apparatus For The Detection Of Impulsive Noise In Transmitted Speech Signals For Use In Speech Quality Assessment  
A method and apparatus for performing speech quality assessment in a speech communication system (such as, for example, a VoIP communication system) which detects and measures the presence of...
US20080270123 System for Indicating Emotional Attitudes Through Intonation Analysis and Methods Thereof  
The present invention discloses means and method for indicating emotional attitudes of a speaker, either human or animal, according to voice intonation. The invention also discloses a method for...
US20120035917 SYSTEM AND METHOD FOR AUTOMATIC DETECTION OF ABNORMAL STRESS PATTERNS IN UNIT SELECTION SYNTHESIS  
Disclosed herein are systems, methods, and non-transitory computer-readable storage media for detecting and correcting abnormal stress patterns in unit-selection speech synthesis. A system...
US20050065778 Secure speech  
A method, apparatus and computer product for masking speech. The system includes a signal acquiring apparatus for generating an electrical signal representative of the speech; a processing...
US20100145681 Method and system to identify, quantify, and display acoustic transformational structures in speech  
The invention for processing speech that is described herein measures the periodic changes of multiple acoustic features in a digitized utterance without regard for lexical, sublexical, or...
US20090125298 VIBRATO DETECTION MODULES IN A SYSTEM FOR AUTOMATIC TRANSCRIPTION OF SUNG OR HUMMED MELODIES  
The technology disclosed relates to audio signal processing. It includes a series of modules that individually are useful to solve audio signal processing problems. Among the problems addressed...
US20080162119 Discourse Non-Speech Sound Identification and Elimination  
An acoustic signal is subjected to filtration whereby low frequency sounds such as respiration are removed. Intense acoustic sounds such as coughing are also removed, and ultrasonic carrier...
US20120057715 SPATIAL AUDIO ENCODING AND REPRODUCTION  
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...
US20120179456 LOUDNESS MAXIMIZATION WITH CONSTRAINED LOUDSPEAKER EXCURSION  
An original loudness level of an audio signal is maintained for a mobile device while maintaining sound quality as good as possible and protecting the loudspeaker used in the mobile device. The...
US20070219784 ENVIRONMENT DETECTION AND ADAPTATION IN HEARING ASSISTANCE DEVICES  
Method and apparatus for environment detection and adaptation in hearing assistance devices. Performance of feature extraction and environment detection to perform adaptation to hearing assistance...
US20120016665 SOUND MASKING SYSTEM AND MASKING SOUND GENERATION METHOD  
In a masking sound generation apparatus, a CPU analyzes a speech utterance speed of a received sound signal. Then, the CPU copies the received sound signal into a plurality of sound signals and...
US20050261892 Audio encoding with different coding models  
A method for supporting an encoding of an audio signal is shown, wherein at least a first and a second coder mode are available for encoding a section of the audio signal. The first coder mode...
US20120053931 Speech Masking and Cancelling and Voice Obscuration  
A non-acoustic sensor is used to measure a user's speech and then broadcasts an obscuring acoustic signal diminishing the user's vocal acoustic output intensity and/or distorting the voice sounds...
US20080177532 Apparatus and methods for enhancement of speech  
A method for improving the intelligibility of an incoming telephone signal, including boosting loudness of at least one band of poorly heard frequencies of the signal within at least one band of...
US20070208557 Perceptual, scalable audio compression  
The perceptual scalable audio coding/decoding technique lies in the use of a psychoacoustic mask to guide residue coding in enhancement layer coders. At the encoder, a psychoacoustic mask is...
US20110002266 System and Method for Frequency Domain Audio Post-processing Based on Perceptual Masking  
In an embodiment, a method of frequency domain post-processing is disclosed. The method includes applying adaptive modification gain factor to each frequency coefficient, and determining gain...
US20070203694 Single-sided speech quality measurement  
A non-intrusive speech quality estimation technique is based on statistical or probability models such as Gaussian Mixture Models (“GMMs”). Perceptual features are extracted from the received...
US20090132238 EFFICIENT METHOD FOR REUSING SCALE FACTORS TO IMPROVE THE EFFICIENCY OF AN AUDIO ENCODER  
An audio encoding system that accepts an audio signal as an input to the system. The system includes a filter bank that splits the audio signal into a plurality of frames, and a bit allocation...
US20070168183 Audio distribution system, an audio encoder, an audio decoder and methods of operation therefore  
A stereo audio encoder (100) comprises a parametric stereo encoder (115) which generates a mono signal and parametric stereo parameters for at least a high frequency part of an input stereo...
US20070027676 Recording and retrieval of sound data in a hearing prosthesis  
A hearing prosthesis for delivering stimuli to a hearing-impaired recipient is disclosed, the hearing prosthesis comprising: a sound transducer for converting received sound signals into electric...
US20080091416 Method, medium and apparatus enhancing a bass signal using an auditory property  
Provided are a method, medium and apparatus for enhancing an acoustic signal using an auditory property. An acoustic signal is enhanced by generating a plurality of harmonic signals based on a...
US20120239385 SOUND PROCESSING BASED ON A CONFIDENCE MEASURE  
A method for processing sound that includes, generating one or more noise component estimates relating to an electrical representation of the sound and generating an associated confidence measure...
US20090226010 Mixing of Input Data Streams and Generation of an Output Data Stream Thereform  
An apparatus for mixing a plurality of input data streams is described, which has a processing unit adapted to compare the frames of the plurality of input data streams, and determine, based on...
US20080059154 Encoding an audio signal  
For taking account of different requirements on encoded audio data having different bit rates, at least two different amounts of pre-processing are applied to an audio signal to obtain at least...
US20090099843 METHOD AND SYSTEM FOR THE INTEGRAL AND DIAGNOSTIC ASSESSMENT OF LISTENING SPEECH QUALITY  
A method for determining a speech quality measure of an output speech signal with respect to an input speech signal, wherein the input signal passes through a signal path of a data transmission...
US20080109215 High frequency reconstruction by linear extrapolation  
High frequency components of audio signals are reconstructed from the aspects of envelope and fine detail. The envelopes of the high frequency components are found through linear extrapolation of...
US20060004565 Audio signal encoding device and storage medium for storing encoding program  
An encoding device which encodes audio signals comprises a spectrum power calculation unit for calculating the power of each spectrum obtained by analyzing the frequency of an input audio signal,...
US20080319739 LOW COMPLEXITY DECODER FOR COMPLEX TRANSFORM CODING OF MULTI-CHANNEL SOUND  
A multi-channel audio decoder provides a reduced complexity processing to reconstruct multi-channel audio from an encoded bitstream in which the multi-channel audio is represented as a coded...
US20090326928 Audio Stream Notification and Processing  
Various embodiments provide techniques for allowing an application to opt out of system default audio stream behavior, as well as techniques for notifying applications on a computing device that a...
US20080097749 DUAL-TRANSFORM CODING OF AUDIO SIGNALS  
Methods, devices, and systems for coding and decoding audio are disclosed. At least two transforms are applied on an audio signal, each with different transform periods for better resolutions at...
US20100131417 ENHANCING COPYRIGHT REVENUE GENERATION  
A method and system for enhancing copyright revenue generation is disclosed. The method includes receiving a copyrighted media recording, creating an independent work of authorship by generating a...
US20090063137 Method and Apparatus of Low-Complexity Psychoacoustic Model Applicable for Advanced Audio Coding Encoders  
A method and an apparatus of a low-complexity psychoacoustic model applicable for advanced audio coding encoders use a modified discrete cosine transform based (MDCT-based) psychoacoustic model...
US20070078645 Filterbank-based processing of speech signals  
A method for suppressing noise from a digital audio signal, the method comprising: obtaining the digital signal; dividing the digital audio signal into sub-bands of non-uniform frequency division...
US20090067644 Economical Loudness Measurement of Coded Audio  
Measuring the loudness of audio encoded in a bitstream that includes data from which an approximation of the power spectrum of the audio can be derived without fully decoding the audio is...
US20090037166 AUDIO ENCODING METHOD WITH FUNCTION OF ACCELERATING A QUANTIZATION ITERATIVE LOOP PROCESS  
An audio encoding method previously estimates better initial iterative values of global-gain and scalefactor for avoiding heavy calculation. The estimating process of the encoding method includes...
US20060195314 Optimized fidelity and reduced signaling in multi-channel audio encoding  
The invention provides an efficient technique for encoding a multi-channel audio signal. The invention relies on the principle of encoding (S1) a signal representation of one or more of the...
US20080027709 Determining scale factor values in encoding audio data with AAC  
Techniques for determining scale factor values when encoding audio data are described. According to one technique, a particular scale factor value (SFV) is estimated using an audio quality...
US20090150143 MDCT domain post-filtering apparatus and method for quality enhancement of speech  
A post-filtering apparatus and method for speech enhancement in a modified discrete cosine transform (MDCT) domain are disclosed. In the apparatus and method, previous and current MDCT...
US20070162277 System and method for low power stereo perceptual audio coding using adaptive masking threshold  
A method for stereo audio perceptual encoding of an input signal includes masking threshold estimation and bit allocation. The masking threshold estimation and bit allocation are performed once...
US20070094009 Encoder-assisted frame loss concealment techniques for audio coding  
Encoder-assisted frame loss concealment (FLC) techniques for decoding audio signals are described. A decoder may discard an erroneous frame of an audio signal and may implement the...
US20100010807 METHOD AND APPARATUS TO ENCODE AND DECODE AN AUDIO/SPEECH SIGNAL  
A method and apparatus to encode and decode an audio/speech signal is provided. An inputted audio signal or speech signal may be transformed into at least one of a high frequency resolution signal...
US20100017195 Filter Unit and Method for Generating Subband Filter Impulse Responses  
A filter compressor for generating compressed subband filter impulse responses from input subband filter impulse responses corresponding to subbands, which include filter impulse response values...
US20060253276 Method and apparatus for coding audio signal  
An audio coding method and apparatus capable of improving efficiency of a MPEG-4 AAC (Moving Picture Expert Group-4 Advanced Audio Coding) process are disclosed. The audio coding method and...
US20060004566 Low-bitrate encoding/decoding method and system  
A low-bitrate encoding system includes: a time-frequency transform unit transforming an input time-domain audio signal into a frequency-domain audio signal; a frequency component processor unit...
US20150106083 AUDIO SIGNAL LOUDNESS DETERMINATION AND MODIFICATION IN THE FREQUENCY DOMAIN  
Methods of, apparatuses for, and non-transitory computer readable media having instructions thereon that when executed cause carrying out methods of determining and modifying the perceived...
US20100169079 PSYCHOACOUSTIC TIME ALIGNMENT  
A method of providing a quality measure for an output voice signal generated to reproduce an input voice signal, the method comprising: partitioning the input and output signals into frames; for...
US20050129109 Method and apparatus for encoding/decoding MPEG-4 bsac audio bitstream having ancillary information  
A method of and an apparatus for encoding/decoding an MPEG-4 bit sliced arithmetic coding (BSAC) audio bitstream having ancillary information. A time domain audio signal is converted to a...

Matches 1 - 50 out of 99 1 2 >