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| Number | Title | Issue Date |
| 8180638 | Method for emotion recognition based on minimum classification error Disclosed herein is a method for emotion recognition based on a minimum classification error. In the method, a speaker's neutral emotion is extracted using a Gaussian mixture model (GMM), other emotions except the neutral emotion are classified using the Gaussian Mi... | 05/15/2012 |
| 8180637 | High performance HMM adaptation with joint compensation of additive and convolutive distortions A method of compensating for additive and convolutive distortions applied to a signal indicative of an utterance is discussed. The method includes receiving a signal and initializing noise mean and channel mean vectors. Gaussian dependent matrix and Hidden Markov Mo... | 05/15/2012 |
| 8121839 | Method and apparatus for detecting unsolicited multimedia communications A service is configured to analyze multimedia communications to determine a likelihood that the communication is unsolicited. For example, the service may inspect e-mail messages, instant messaging messages, facsimile transmissions, voice communications, and video t... | 02/21/2012 |
| 8099278 | Age determination using speech A device may be configured to provide a query to a user. Voice data may be received from the user responsive to the query. Voice recognition may be performed on the voice data to identify a query answer. A confidence score associated with the query answer may be cal... | 01/17/2012 |
| 7996222 | Prosody conversion A contour for a syllable (or other speech segment) in a voice undergoing conversion is transformed. The transform of that contour is then used to identify one or more source syllable transforms in a codebook. Information regarding the context and/or linguistic featu... | 08/09/2011 |
| 7983910 | Communicating across voice and text channels with emotion preservation Communicating across channels with emotion preservation includes: receiving, by a processor in a communication device, a voice communication; analyzing, by the processor in the communication device, the voice communication for first emotion content; analyzing, by th... | 07/19/2011 |
| 7904295 | Method for automatic speaker recognition with hurst parameter based features and method for speaker classification based on fractional brownian motion classifiers It is proposed a text-independent automatic speaker recognition (ASkR) system which employs a new speech feature and a new classifier. The statistical feature pH is a vector of Hurst parameters obtained by applying a wavelet-based multi-dimensional estimator (M dim ... | 03/08/2011 |
| 7895038 | Signal enhancement via noise reduction for speech recognition Speech enhancement techniques for extemporaneous noise without a noise interval and unknown extemporaneous noise are provided with a method of signal enhancement including subtracting a given reference signal from an input signal containing a target signal and a noi... | 02/22/2011 |
| 7881933 | Age determination using speech A device may include logic configured to receive voice data from a user, identify a result from the voice data, calculate a confidence score associated with the result, and determine a likely age range associated with the user based on the confidence score. ... | 02/01/2011 |
| 7877254 | Method and apparatus for enrollment and verification of speaker authentication The present invention provides a method and apparatus for enrollment and verification of speaker authentication. The method for enrollment of speaker authentication, comprising: extracting an acoustic feature vector sequence from an enrollment utterance of a speaker... | 01/25/2011 |
| 7813927 | Method and apparatus for training a text independent speaker recognition system using speech data with text labels There is provided an apparatus for providing a Text Independent (TI) speaker recognition mode in a Text Dependent (TD) Hidden Markov Model (HMM) speaker recognition system and/or a Text Constrained (TC) HMM speaker recognition system. The apparatus includes a Gaussi... | 10/12/2010 |
| 7689418 | Method and system for non-intrusive speaker verification using behavior models A system and method for verifying user identity, in accordance with the present invention, includes a conversational system for receiving inputs from a user and transforming the inputs into formal commands. A behavior verifier is coupled to the conversational system... | 03/30/2010 |
| 7657432 | Speaker recognition method based on structured speaker modeling and a scoring technique A technique for improved score calculation and normalization in a framework of recognition with phonetically structured speaker models. The technique involves determining, for each frame and each level of phonetic detail of a target speaker model, a non-interpolated... | 02/02/2010 |
| 7627473 | Hidden conditional random field models for phonetic classification and speech recognition A method and apparatus are provided for training and using a hidden conditional random field model for speech recognition and phonetic classification. The hidden conditional random field model uses feature functions, at least one of which is based on a hidden state ... | 12/01/2009 |
| 7603275 | System, method and computer program product for verifying an identity using voiced to unvoiced classifiers Embodiments of a system, method and computer program product for verifying an identity claimed by a claimant using voiced to unvoiced classifiers are described. In accordance with one embodiment, a speech sample from a claimant claiming an identity may be captured. ... | 10/13/2009 |
| 7475014 | Method and system for tracking signal sources with wrapped-phase hidden markov models A method models trajectories of a signal source. Training signals generated by a signal source moving along known trajectories are acquired by each sensor in an array of sensors. Phase differences between all unique pairs of the training signals are determined. A wr... | 01/06/2009 |
| 7454339 | Discriminative training for speaker and speech verification A method for discriminatively training acoustic models is provided for automated speaker verification (SV) and speech (or utterance) verification (UV) systems. The method includes: defining a likelihood ratio for a given speech segment, whose speaker identity (for S... | 11/18/2008 |
| 7447633 | Method and apparatus for training a text independent speaker recognition system using speech data with text labels There is provided an apparatus for providing a Text Independent (TI) speaker recognition mode in a Text Dependent (TD) Hidden Markov Model (HMM) speaker recognition system and/or a Text Constrained (TC) HMM speaker recognition system. The apparatus includes a Gaussi... | 11/04/2008 |
| 7437289 | Methods and apparatus for the systematic adaptation of classification systems from sparse adaptation data Methods and apparatus for the rapid adaptation of classification systems using small amounts of adaptation data. Improvements in classification accuracy are attainable when conditions similar to those that present in adaptation are observed. The attendant methods an... | 10/14/2008 |
| 7430509 | Lattice encoding Initially an embedding module (22) determines an embedding of a lattice in a two-dimensional plane. The embedding module (22) then processes the initial embedding to generate a planar graph in which no links cross. The planar graph is then simplified b... | 09/30/2008 |
| 7424425 | Optimization of detection systems using a detection error tradeoff analysis criterion In detection systems, such as speaker verification systems, for a given operating point range, with an associated detection “cost”, the detection cost is preferably reduced by essentially trading off the system error in the area of interest with areas essentiall... | 09/09/2008 |
| 7424426 | Noise adaptation system of speech model, noise adaptation method, and noise adaptation program for speech recognition An object of the present invention is to facilitate dealing with noisy speech with varying SNR and save calculation costs by generating a speech model with a single-tree-structure and using the model for speech recognition. Every piece of noise data stored in... | 09/09/2008 |
| 7409343 | Verification score normalization in a speaker voice recognition device During a learning phase, a speech recognition device generates parameters of an acceptance voice model relating to a voice segment spoken by an authorized speaker and a rejection voice model. It uses normalization parameters to normalize a speaker verification score... | 08/05/2008 |
| 7391877 | Spatial processor for enhanced performance in multi-talker speech displays Optimal head related transfer function spatial configurations designed to maximize speech intelligibility in multi-talker speech displays by spatially separating competing speech channels combined with a method of normalizing the relative levels of the different tal... | 06/24/2008 |
| 7379869 | Voice evaluation for comparison of a user's voice to a pre-recorded voice of another A method of comparing voice signatures is provided comprising selecting an original performance. The original performance is comprised of an original performance voice signature. A user impersonation of at least a portion of the original performance is recorded and ... | 05/27/2008 |
| 7373294 | Intonation transformation for speech therapy and the like The intonation of speech is modified by an appropriate combination of resampling and time-domain harmonic scaling. Resampling increases (upsampling) or decreases (downsampling) the number of data points in a signal. Harmonic scaling adds or removes pitch cycles to o... | 05/13/2008 |
| 7363223 | Policy analysis framework for conversational biometrics The present invention describes a framework for the analytical and visual analysis and tuning of complex speaker verification systems guided by a policy finite state machine. The Receiver Operating Curve associated with the acoustic speaker recognition task is trans... | 04/22/2008 |
| 7356134 | Method of accessing a dial-up service A method of accessing a dial-up service involves the following steps: (a) dialing a service number (172); (b) speaking a number of digits to form a first utterance (174); (c) recognizing the digits using speaker independent speaker recognition (176 | 04/08/2008 |
| 7340396 | Method and apparatus for providing a speaker adapted speech recognition model set Speech feature vectors (10) are provided and utilized to develop a corresponding estimated speaker dependent speech feature space model (20) (in one embodiment, it is not necessary that this model (20) have defined correlations with the verbal c... | 03/04/2008 |
| 7336282 | System, recording medium and program for inputting operation condition of instrument An operation condition inputting system employing a tree state hierarchical menu is formed by classifying various operation conditions of an apparatus by at least one function and segmentalizing the at least one function into menu items to be optionally selected by ... | 02/26/2008 |
| 7337115 | Systems and methods for providing acoustic classification A speech recognition system receives an audio signal and detects various features of the audio signal. For example, the system classifies the audio signal into speech and non-speech portions, genders of speakers corresponding to the speech portions, and channel band... | 02/26/2008 |
| 7324941 | Method and apparatus for discriminative estimation of parameters in maximum a posteriori (MAP) speaker adaptation condition and voice recognition method and apparatus including these A method and apparatus for discriminative estimation of parameters in a maximum a posteriori (MAP) speaker adaptation condition, and a voice recognition apparatus having the apparatus and a voice recognition method using the method are provided. The method for discr... | 01/29/2008 |
| 7319846 | Colored interference identification A method and apparatus for receiving a communication signal r(t) subject to noise n(t) over a communication channel (10) is disclosed. The method comprises the steps of: receiving (100) the communication signal r(t) comprising the noise n(t), estimatin... | 01/15/2008 |
| 7318032 | Speaker recognition method based on structured speaker modeling and a “Pickmax” scoring technique A technique for improved score calculation and normalization in a framework of recognition with phonetically structured speaker models. The technique involves determining, for each frame and each level of phonetic detail of a target speaker model, a non-interpolated... | 01/08/2008 |
| 7315818 | Error correction in speech recognition New techniques and systems may be implemented to improve error correction in speech recognition. These new techniques and systems may be implemented to correct errors in speech recognition systems may be used in a standard desktop environment, in a mobile environmen... | 01/01/2008 |
| 7315811 | System and method for accented modification of a language model A system and method for a speech recognition technology that allows language models for a particular language to be customized through the addition of alternate pronunciations that are specific to the accent of the dictator, for a subset of the words in the language... | 01/01/2008 |
| 7308403 | Compensation for utterance dependent articulation for speech quality assessment A method for objective speech quality assessment that accounts for phonetic contents, speaking styles or individual speaker differences by distorting speech signals under speech quality assessment. By using a distorted version of a speech signal, it is possible to c... | 12/11/2007 |
| 7305339 | Restoration of high-order Mel Frequency Cepstral Coefficients A method for estimating high-order Mel Frequency Cepstral Coefficients, the method comprising initializing any of N−L high-order coefficients (HOC) of an MFCC vector of length N having L low-order coefficients (LOC) to a predetermined value, thereby forming a cand... | 12/04/2007 |
| 7302389 | Automatic assessment of phonological processes A computer-based system generates alternative phonetic transcriptions for a target word or phrase corresponding to specific phonological processes that replace individual phonemes or clusters of two or more phonemes with replacement phonemes. The system compares a u... | 11/27/2007 |
| 7295978 | Systems and methods for using one-dimensional gaussian distributions to model speech A system for recognizing speech receives an input speech vector and identifies a Gaussian distribution. The system determines an address from the input speech vector (610) and uses the address to retrieve a distance value for the Gaussian distribution from a ... | 11/13/2007 |
