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| Number | Title | Issue Date |
| 8010362 | Voice conversion using interpolated speech unit start and end-time conversion rule matrices and spectral compensation on its spectral parameter vector A voice conversion rule and a rule selection parameter are stored. The voice conversion rule converts a spectral parameter vector of a source speaker to a spectral parameter vector of a target speaker. The rule selection parameter represents the spectral parameter v... | 08/30/2011 |
| 7957973 | Audio signal interpolation method and device An audio signal interpolation device comprises a spectral movement calculation unit which determines a spectral movement which is indicative of a difference in each of spectral components between a frequency spectrum of a current frame of an input audio signal and a... | 06/07/2011 |
| 7680665 | Device and method for interpolating frequency components of signal adaptively A frequency interpolating device for restoring a signal similar to the original signal by creating a suppressed frequency component of a specific frequency band of the original signal, approximately from the input signal having the suppressed frequency component. In... | 03/16/2010 |
| 7643996 | Enhanced waveform interpolative coder An Enhanced analysis-by-synthesis Waveform Interpolative speech coder able to operate at 4 kbps. Novel features include analysis-by-synthesis quantization of the slowly evolving waveform, analysis-by-synthesis vector quantization of the dispersion phase, a special p... | 01/05/2010 |
| 7606711 | Audio signal processing device, signal recovering device, audio signal processing method and signal recovering method The pitch extracting part generates a pitch waveform signal in a manner making the time interval of the pitch of the input audio sound data to be the same. After the number of samples in each region is made to be the same by the re-sampling part, the pitch waveform ... | 10/20/2009 |
| 7529673 | Spectral parameter substitution for the frame error concealment in a speech decoder A method for use by a speech decoder in handling bad frames received over a communications channel a method in which the effects of bad frames are concealed by replacing the values of the spectral parameters of the bad frames (a bad frame being either a corrupted fr... | 05/05/2009 |
| 7428492 | Speech synthesis dictionary creation apparatus, method, and computer-readable medium storing program codes for controlling such apparatus and pitch-mark-data file creation apparatus, method, and computer-readable medium storing program codes for controlling such apparatus The distance between the first two pitch marks of a voiced portion of speech data to be processed is calculated. The difference between the adjacent inter-pitch-mark distances is calculated. The respective calculation results are stored and managed in a file. ... | 09/23/2008 |
| 7418388 | Voice synthesizing method using independent sampling frequencies and apparatus therefor A method and a system of producing a synthesized voice is provided. A voice sound waveform is provided at a voice sampling frequency based on pronunciation informations. A voice-less sound waveform is produced at a voice-less sampling frequency based on the pronunci... | 08/26/2008 |
| 7409347 | Data-driven global boundary optimization Portions from segment boundary regions of a plurality of speech segments are extracted. Each segment boundary region is based on a corresponding initial unit boundary. Feature vectors that represent the portions in a vector space are created. For each of a plurality... | 08/05/2008 |
| 7395202 | Method and apparatus to facilitate vocoder erasure processing Upon receiving (101) a vocoded voice frame and detecting (102) that the received vocoded voice frame comprises an erased frame, one automatically replaces (103) the erased frame with a valid frame having at least one error condition. In a prefer... | 07/01/2008 |
| 7369991 | Speech recognition system, speech recognition method, speech synthesis system, speech synthesis method, and program product having increased accuracy The object of the present invention is to keep a high success rate in recognition with a low-volume of sound signal, without being affected by noise. The speech recognition system comprises a sound signal processor 10 configured to acquire a sound sign... | 05/06/2008 |
| 7343283 | Method and apparatus for coding a noise-suppressed audio signal An unfiltered frame portion (2) from a second frame (503) is blended together with a filtered frame portion (1) from a first frame (501) to produce a combined frame portion (507). The combined frame portion (507) is then buf... | 03/11/2008 |
| 7340392 | Multiple sound fragments processing and load balancing A method, system and article of manufacture of recognizing a voice command. One embodiment of the invention comprises: receiving a voice input; using the number of sound fragments, determining a number of sound fragments to be processed in a first set of sound fragm... | 03/04/2008 |
| 7334050 | Voice applications and voice-based interface A system, method and computer program product are provided for initiating a tailored voice application according to an embodiment. First, a voice application is installed at a server. A request to instantiate the voice application is received from a user. User-speci... | 02/19/2008 |
| 7317958 | Apparatus and method of additive synthesis of digital audio signals using a recursive digital oscillator A method of performing additive synthesis of digital audio signals using a novel recursive digital oscillator includes the step of receiving digital audio signal frames wherein each digital audio signal frame includes a set of frequency, amplitude, and phase compone... | 01/08/2008 |
| 7318034 | Speech signal interpolation device, speech signal interpolation method, and program A voice signal interpolation apparatus is provided which can restore original human voices from human voices in a compressed state while maintaining a high sound quality. When a voice signal representative of a voice to be interpolated is acquired by a voice data in... | 01/08/2008 |
| 7307981 | Apparatus and method for converting LSP parameter for voice packet conversion An apparatus for converting voice packets transmitted/received through a network includes a first transcoder for performing at least one of bit-unpacking and unquantization on an encoded packet at a first encoder, namely transmitting party, to obtain an LSP (Line Sp... | 12/11/2007 |
| 7283961 | High-quality speech synthesis device and method by classification and prediction processing of synthesized sound There is disclosed a speech processing device in which prediction taps for finding prediction values of the speech of high sound quality are extracted from the synthesized sound obtained on affording linear prediction coefficients and residual signals, generated fro... | 10/16/2007 |
| 7280968 | Synthetically generated speech responses including prosodic characteristics of speech inputs A method for digitally generating speech with improved prosodic characteristics can include receiving a speech input, determining at least one prosodic characteristic contained within the speech input, and generating a speech output including the prosodic characteri... | 10/09/2007 |
| 7272556 | Scalable and embedded codec for speech and audio signals A system and method for processing of audio and speech signals is disclosed, which provide compatibility over a range of communication devices operating at different sampling frequencies and/or bit rates. The analyzer of the system divides the input signal in differ... | 09/18/2007 |
| 7263080 | Architecture of an integrated circuit for streaming media over wireless networks An integrated circuit for streaming media over wireless networks is disclosed. The integrated circuit includes a media module that is designed to process media data. When non-media data is in, switching means is provided to avoid the non-media data being processed i... | 08/28/2007 |
| 7257528 | Method and apparatus for Chinese character text input A method and apparatus for inputting Chinese character text into a machine such as a word processor or personal computer. The system consists of an apparatus which forms a closed feedback loop with the operator. The operator supplies stroke selections and other data... | 08/14/2007 |
| 7257535 | 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 nois... | 08/14/2007 |
| 7249020 | Voice synthesizing method using independent sampling frequencies and apparatus therefor A method and a system of producing a synthesized voice is provided. A voice sound waveform is provided at a voice sampling frequency based on pronunciation informations. A voice-less sound waveform is produced at a voice-less sampling frequency based on the pronunci... | 07/24/2007 |
| 7240005 | Method of controlling high-speed reading in a text-to-speech conversion system A method of high-speed reading in a text-to-speech conversion system including a text analysis module (101) for generating a phoneme and prosody character string from an input text; a prosody generation module (102) for generating a synthesis parameter... | 07/03/2007 |
| 7224747 | Generating coefficients for a prediction filter in an encoder A transmitter is disclosed for transmitting a transmission signal via a transmission medium. The transmitter derives a prediction signal from the digital information signal in dependence on an array of prediction filter coefficients. The array of prediction filler c... | 05/29/2007 |
| 7224853 | Method and apparatus for resampling data A set of known data samples are identified and an approximation of an original function from which the known data samples were obtained is created. The approximation function is then resampled to obtain desired values that are not contained in the set of known data ... | 05/29/2007 |
| 7219056 | Determining and using acoustic confusability, acoustic perplexity and synthetic acoustic word error rate Two statistics are disclosed for determining the quality of language models. These statistics are called acoustic perplexity and the synthetic acoustic word error rate (SAWER), and they depend upon methods for computing the acoustic confusability of words. It is pos... | 05/15/2007 |
| 7206745 | Method and apparatus for accessing targeted, personalized voice/audio web content through wireless devices A wireless web system allows users to navigate web pages that include links to audio content where the pages are provided over a data connection and the audio content is provided over a voice connection. An audio content reference generator generates a reference to ... | 04/17/2007 |
| 7177812 | Universal sampling rate converter for digital audio frequencies A method for conversion of input audio frequency data, at an input sample frequency, to output audio frequency data, at an output sample frequency. The input data is subjected to expansion to produce expanded data at an output sample frequency. The expanded data is ... | 02/13/2007 |
| 7149683 | Method and device for robust predictive vector quantization of linear prediction parameters in variable bit rate speech coding The present invention relates to a method and device for quantizing linear prediction parameters in variable bit-rate sound signal coding, in which an input linear prediction parameter vector is received, a sound signal frame corresponding to the input linear predic... | 12/12/2006 |
| 7143032 | Method and system for an overlap-add technique for predictive decoding based on extrapolation of speech and ringinig waveform A method and system are provided for removing discontinuities associated with synthesizing a corrupted frame output from a decoder including one or more predictive filters. The corrupted frame is representative of one segment of a decoded signal. The method comprise... | 11/28/2006 |
| 7136876 | Method and system for building an abbreviation dictionary A method and apparatus for building an abbreviation dictionary involves searching through a set of source documents. The abbreviations having likely definitions are identified and the definitions extracted from the document. The definitions having identical associat... | 11/14/2006 |
| 7127389 | Method for encoding and decoding spectral phase data for speech signals A speech decoder and a segment aligner are provided in the present invention. The speech decoder may include a spectrum reconstructor operative to reconstruct the spectrum of a speech segment from the amplitude envelope of the spectrum of said speech segment and pit... | 10/24/2006 |
| RE39336 | Formant-based speech synthesizer employing demi-syllable concatenation with independent cross fade in the filter parameter and source domains The concatenative speech synthesizer employs demi-syllable subword units to generate speech. The synthesizer is based on a source-filter model that uses source signals that correspond closely to the human glottal source and that uses filter parameters that correspon... | 10/10/2006 |
| 7106020 | Method of operating a brushless DC motor Methods and devices for brushless DC motor operation. An example method may include using previously sensed Hall effect sensor transitions to predict a future Hall effect transition, and dividing a time between a most recent Hall effect sensor transition and the pre... | 09/12/2006 |
| 7092881 | 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 nois... | 08/15/2006 |
| 7092573 | Method and system for selectively applying enhancement to an image A method for processing a digital color image includes the steps of: providing a subject matter detector for distinguishing between target and background subject matters; applying the subject matter detector to the image to produce a belief map indicating the degree... | 08/15/2006 |
| 7089177 | System and method for characterizing voiced excitations of speech and acoustic signals, removing acoustic noise from speech, and synthesizing speech The present invention is a system and method for characterizing human (or animate) speech voiced excitation functions and acoustic signals, for removing unwanted acoustic noise which often occurs when a speaker uses a microphone in common environments, and for synth... | 08/08/2006 |
| 7085721 | Method and apparatus for fundamental frequency extraction or detection in speech An object is to provide a method of extracting sound-source information, which method enables the characteristics of fixed points of mapping from filter center frequency to output instantaneous frequency to be detected from instantaneous data, as a value which can b... | 08/01/2006 |
