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Data Processing: Speech Signal Processing, Linguistics, Language Translation, And Audio Compression/decompression > Speech Signal Processing > Recognition > Detect Speech In Noise Detect Speech In NoiseDetect Speech In Noise patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.11/30/06 - 20060271363 - Voice detecting method and apparatus using a long-time average of the time variation of speech features, and medium thereof A first filter (2061 in FIG. 1) calculates a long-time average of first change quantities based on a difference between a line spectral frequency of an input voice signal and a long-time average thereof. A second filter (2062 in FIG. 1) calculates a long-time average of second change quantities based ... 11/30/06 - 20060271362 - Method and apparatus for noise suppression In a noise suppression apparatus for suppressing noise contained in a speech signal, the speech signal is converted to a first vector of spectral speech components and a second vector of spectral speech components identical to the first vector. A vector of noise suppression coefficients is determined based on the ... 11/23/06 - 20060265219 - Noise level estimation method and device thereof A noise level estimation device defines a short time frame and a long time frame. The long time frame includes a plurality of short time frames. The noise level estimation device has a first. calculating unit to calculate the short time power of an input speech signal for each short ... 11/23/06 - 20060265218 - Reducing noise in an audio signal Methods, machines, systems and machine-readable instructions for processing input audio signals are described. In one aspect, an input audio signal has a noise period that includes a targeted noise signal and a noise-free period free of the targeted noise signal. The input audio signal in the noise-free period is divided ... 11/16/06 - 20060259300 - Method and device for noise detection A system and method for detecting cell phone noise induced in telecommunication equipment, especially in microphones and other unshielded electronic units connected to a communication terminal. A noise detector is configured to execute a so-called “cepstrum” transform of a captured signal exposed to cell phone noise. Due to the characteristics ... 11/09/06 - 20060253283 - Voice activity detection apparatus and method A voice activity detection method comprising the steps of (a) Estimating in a noise power estimator the noise power within a signal having a speech component and a noise component, and (b) Calculating a likelihood ratio for the presence of speech in the signal from the estimated power of noise ... 11/09/06 - 20060253282 - System for automatic recognition of vehicle operating noises A system automatically recognizes a vehicle operating condition through a microphone positioned within the vehicle. The microphone detects acoustic signals. A database stores speech templates and operating noise templates. A feature extracting module receives microphone signals and extracts a set of operating noise feature parameters or speech feature parameters from ... 11/02/06 - 20060247929 - Audio coding A method of classifying a spectro-temporal interval of an input audio signal (x(t)) is disclosed. A spectro-temporal interval of the input audio signal is first modelled (62 . . . 71) according to a perceptual model to provide a first representation (Rep 1). The spectro-temporal interval is then modelled (62 ... 10/19/06 - 20060235684 - Wireless device to access network-based voice-activated services using distributed speech recognition A speech utterance is sensed using a mobile telecommunication device. The speech utterance is compressed into compressed data that is communicated from the mobile telecommunication device to a remote system. The remote system performs a first remote attempt to recognize the speech utterance using a personal directory specific to the ... 10/05/06 - 20060224382 - Noise reduction and audio-visual speech activity detection A noise reduction system including an audio-visual user interface combines visual features extracted from a digital video sequence with audio features extracted from an analog audio sequence. The digital video sequence may show the face of a speaker, and the analog audio sequence may include background noise in an environment ... 09/28/06 - 20060217977 - Continuous speech processing using heterogeneous and adapted transfer function A pre-processing system of a signal of interest in an automatic speech recognition system in a vehicle, includes an acoustic sensor to sense the signal of interest, a non acoustic sensor to sense a non acoustic noise signal, a pre-processing unit of the signal of interest, comprising a processing section ... 09/28/06 - 20060217976 - Adaptive noise state update for a voice activity detector There is provided a method of updating a noise state of a voice activity detector (VAD) for indicating an active voice mode and an inactive voice mode. The method comprises receiving an input signal having a plurality of frames, determining an elapsed time since the last update of the noise ... 09/14/06 - 20060206325 - Method of pattern recognition using noise reduction uncertainty A method and apparatus are provided for using the uncertainty of a noise-removal process during pattern recognition. In particular, noise is removed from a representation of a portion of a noisy signal to produce a representation of a cleaned signal. In the meantime, an uncertainty associated with the noise removal ... 09/07/06 - 20060200346 - Speech quality measurement based on classification estimation Auditory processing is used in conjunction with cognitive mapping to produce an objective measurement of speech quality that approximates a subjective measurement such as MOS. In order to generate a data model for measuring speech quality from a clean speech signal and a degraded speech signal, the clean speech signal ... 09/07/06 - 20060200345 - Method for operating a speech recognition system A method for operating a speech recognition system is described in which a speech signal (S1) of a user is detected and analyzed so as to recognize speech information contained in the speech signal (S). The speech recognition system determines a reception quality value (SQ) or a noise value which ... 08/31/06 - 20060195317 - Method and apparatus for recognizing speech in a noisy environment An apparatus and a concomitant method for recognizing speech in a noisy environment are provided. The present method includes applying a first interpolation weight to a clean speech model to produce a weighted clean speech model, applying a second interpolation weight to a noise model to produce a weighted noise ... 08/17/06 - 20060184363 - Noise suppression Noise suppression (speech enhancement) by spectral amplitude filtering using a gain determined with a quantized estimated signal-to-noise ratio plus, optionally, prior frame suppression. The relation between signal-to-noise ratio and filter gain derives from a codebook mapping with a training set constructed from clean speech and noise conditions. ... 08/17/06 - 20060184362 - Speech analyzing system with adaptive noise codebook Presented herein are systems and methods for generating an adaptive noise codebook for use with electronic speech systems. The noise codebook includes a plurality of entries which may be updated based on environmental noise sounds. The speech system includes a speech codebook and the adaptive noise codebook. The system identifies ... 08/17/06 - 20060184361 - Method and apparatus for reducing an interference noise signal fraction in a microphone signal The invention discloses a method of reducing an interference noise signal fraction in a microphone signal, which method is based on estimating the interference noise signal fraction from a virtually pure interference noise signal and does not require any additional microphones. It is an essential feature of the method according ... 08/10/06 - 20060178881 - Method and apparatus for detecting voice region A method and apparatus for distinguishing a voice region from a non-voice region in an environment where various types of noise and voice are mixed together are provided. The method includes the steps of converting an input voice signal into a frequency domain signal by preprocessing the input voice signal, ... 08/10/06 - 20060178880 - Method and apparatus for reducing noise corruption from an alternative sensor signal during multi-sensory speech enhancement A method and apparatus classify a portion of an alternative sensor signal as either containing noise or not containing noise. The portions of the alternative sensor signal that are classified as containing noise are not used to estimate a portion of a clean speech signal and the channel response associated ... 08/03/06 - 20060173678 - Method and apparatus for predicting word accuracy in automatic speech recognition systems The invention comprises a method and apparatus for predicting word accuracy. Specifically, the method comprises obtaining an utterance in speech data where the utterance comprises an actual word string, processing the utterance for generating an interpretation of the actual word string, processing the utterance to identify at least one utterance ... 07/20/06 - 20060161430 - Voice activation A circuit and a method are given, to realize a very flexible voice activation system using a modular building block approach, that is adaptively tailored to handle certain relevant and case specific operational characteristics describing most of the possible acoustical differing environmental cases to be found in the field of ... 07/06/06 - 20060149542 - Methods and apparatus for echo cancellation using an adaptive lattice based non-linear processor A non-linear processor for managing a speech signal is disclosed. The non-linear processor includes an adaptive lattice filter that generates a prediction error from a residual echo of the speech signal, a signum non-linearity unit that generates an excitation component from the prediction error, an excitation signal mixer that generates ... 06/15/06 - 20060129392 - Method for extracting feature vectors for speech recognition Disclosed is a method for speech recognition which achieves a high recognition rate. The method includes extracting a parameter from an input signal that represents a characterization of the input signal as a voiced or unvoiced sound, extracting at least one feature vector corresponding to an overall spectrum shape of ... 05/25/06 - 20060111901 - Method and apparatus for detecting speech segments in speech signal processing A method and apparatus for detecting speech segments of a speech signal processing device is provided. A critical band is divided into a certain number of regions according to noise frequency characteristics, a signal threshold and a noise threshold are set for each of the regions, and it is determined ... 05/04/06 - 20060095258 - Apparatus for separating blind source signals having systolic array structure Disclosed is a hardware architecture receiving multi-input blind source signals and obtaining multi-output. An apparatus for separating blind source signals includes: a forward process unit receiving a plurality of blind source signal vectors and outputting a plurality of output signal vectors by using a predetermined blind source separation algorithm; an ... 04/20/06 - 20060085183 - System and method for increasing recognition accuracy and modifying the behavior of a device in response to the detection of different levels of speech The present invention discloses a system and method for controlling the response of a device after a whisper, shout, or conversational speech has been detected. In the preferred embodiment, the system of the present invention modifies its speech recognition module to detect a whisper, shout, or conversational speech (which have ... 04/13/06 - 20060080095 - Apparatus and method for designating various segment classes For the segment class designation the temporal position of segments in two candidate segment classes is used for the stanza/refrain selection by means of a segment class designation means, wherein the highest-order segment class is designated as refrain segment class only when it has a segment following temporally later in ... 04/06/06 - 20060074651 - Adaptive confidence thresholds in telematics system speech recognition A method of configuring a speech recognition unit in a vehicle. The method includes receiving a noise error from the speech recognition unit responsive to a user voice command and reducing a confidence threshold for an appropriate grammar set responsive to the received noise error. ... 03/23/06 - 20060064301 - Parametric speech codec for representing synthetic speech in the presence of background noise A system and method are provided for processing audio and speech signals using a pitch and voicing dependent spectral estimation algorithm (voicing algorithm) to accurately represent voiced speech, unvoiced speech, and mixed speech in the presence of background noise, and background noise with a single model. The present invention also ... 03/16/06 - 20060058997 - Audio signal identification method and system A method for identifying an audio signal from a set of audio signals. A user preference (106) is received (104). The set of audio signals is concurrently received (108), for example from a number of radio sources. The audio signals are analysed (110) to extract features (112). Audio signals are ... 03/09/06 - 20060053007 - Detection of voice activity in an audio signal A device comprising a voice activity detector for detecting voice activity in a speech signal using digital data formed on the basis of samples of an audio signal. The voice activity detector comprises a first element adapted to examine whether the signal has a highpass nature. The voice activity detector ... 01/26/06 - 20060020454 - Method and system for noise suppression in inductive receivers A method for noise suppression in wireless receivers or hearing aid devices comprising a receiver coil, wherein audible information is transmitted from a transmitter coil or loop in a wireless manner to said receiver coil, is disclosed and claimed. The method includes that the signal received by said receiver coil ... 01/19/06 - 20060015333 - Low-complexity music detection algorithm and system A method for detecting music in a speech signal having a plurality of frames. The method comprises defining a music threshold value for a first parameter extracted from a frame of the speech signal, defining a background noise threshold value for the first parameter, and defining an unsure threshold value ... 11/17/05 - 20050256709 - Band extending apparatus and method A band extending apparatus includes a spectral parameter calculating circuit for calculating spectral parameters of a narrow-band input signal, a coefficient calculating circuit supplied with the spectral parameters to convert the spectral parameters into coefficients of a band extended signal, and a gain circuit supplied with a gain from a ... 10/13/05 - 20050228662 - Middle-end solution to robust speech recognition A method for performing time and frequency Signal-to-Noise Ratio (SNR) dependent weighting in speech recognition is described that includes for each period t estimating the SNR to get time and frequency SNR information ηt,f; calculating the time and frequency weighting to get γtf; performing the back and forth weighted time ... 10/06/05 - 20050222842 - Acoustic signal enhancement system A signal enhancement system improves the quality of a noisy input signal. The system finds a low noise signal model which best matches the noisy input signal. Noisy portions of the input signal are replaced with portions of the low noise signal models. As the input signal increases in noise ... 09/29/05 - 20050216263 - Methods and systems for intelligibility measurement of audio announcement systems A measurement system and method combine an audio announcement system with a plurality of spaced apart wirelessly coupled devices which evaluate speech intelligibility of audio output from loudspeakers of the audio announcement system. Processing can take place at some or all of the devices as well as at a common ... 08/25/05 - 20050187765 - Method and apparatus for detecting anchorperson shot A method of and an apparatus for detecting an anchorperson shot. The method includes: a method of detecting an anchorperson shot, including: separating a moving image into audio signals and video signals; deciding boundaries between shots of the moving image using the video signals; and extracting shots having a length ... 08/18/05 - 20050182624 - Method and apparatus for constructing a speech filter using estimates of clean speech and noise A method and apparatus identify a clean speech signal from a noisy speech signal. To do this, a clean speech value and a noise value are estimated from the noisy speech signal. The clean speech value and the noise value are then used to define a gain on a filter. ... 07/21/05 - 20050159948 - Combined speech and handwriting recognition The invention relates to the combination of speech recognition with handwriting and/or character recognition. This includes the innovation of selecting one or more best-scoring recognition candidates as a function of recognition of both handwritten and spoken representations of a sequence of one or more words to be recognized. It also ... ### FreshPatents.com Support |