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9020812 Audio signal processing method and device  
Disclosed is an audio signal processing method comprising the steps of: receiving an audio signal containing current frame data; generating a first temporary output signal for the current frame...
8996378 Voice synthesis apparatus  
In a voice synthesis apparatus, a phoneme piece interpolator acquires first phoneme piece data corresponding to a first value of sound characteristic, and second phoneme piece data corresponding...
8990094 Coding and decoding a transient frame  
An electronic device for coding a transient frame is described. The electronic device includes a processor and executable instructions stored in memory that is in electronic communication with the...
8868423 System and method for controlling access to resources with a spoken CAPTCHA test  
Systems and methods for controlling access to resources using spoken Completely Automatic Public Turing Tests To Tell Humans And Computers Apart (CAPTCHA) tests are disclosed. In these systems and...
8862461 Fraud detection using text analysis  
In one embodiment, a method executed by at least one processor includes receiving text from submitted by a user. The method also includes determining a text score for the received text by...
8825476 Method and apparatus for encoding and decoding high frequency signal  
Provided are a method and apparatus for encoding and decoding a high frequency signal by using a low frequency signal. The high frequency signal can be encoded by extracting a coefficient by...
8812316 Speech recognition repair using contextual information  
A speech control system that can recognize a spoken command and associated words (such as “call mom at home”) and can cause a selected application (such as a telephone dialer) to execute the...
8805695 Bandwidth expansion method and apparatus  
A bandwidth expansion method and apparatus are disclosed, where the method includes: estimating a bandwidth of at least one decoded frame of a whole-band signal, so as to obtain an estimated...
8762156 Speech recognition repair using contextual information  
A speech control system that can recognize a spoken command and associated words (such as “call mom at home”) and can cause a selected application (such as a telephone dialer) to execute the...
8731913 Scaled window overlap add for mixed signals  
A method for overlap-adding signals useful for performing frame loss concealment (FLC) in an audio decoder as well as in other applications. The method uses a dynamic mix of windows to overlap two...
8706493 Controllable prosody re-estimation system and method and computer program product thereof  
In one embodiment of a controllable prosody re-estimation system, a TTS/STS engine consists of a prosody prediction/estimation module, a prosody re-estimation module and a speech synthesis module....
8655663 Audio signal interpolation device and audio signal interpolation method  
An audio signal interpolation device is presented, including an input unit for receiving an input audio signal, a phase splitting unit for splitting the input audio signal, a high range...
8626809 Method and apparatus for digital up-down conversion using infinite impulse response filter  
A method and an apparatus for digital up-down conversion using an Infinite Impulse Response (IIR) filter are provided. The method for digital up-down conversion for frequency conversion in a...
8620646 System and method for tracking sound pitch across an audio signal using harmonic envelope  
A system and method may be configured to analyze audio information derived from an audio signal. The system and method may track sound pitch across the audio signal. The tracking of pitch across...
8589166 Speech content based packet loss concealment  
Systems and methods are described for performing packet loss concealment (PLC) to mitigate the effect of one or more lost frames within a series of frames that represent a speech signal. In...
8494854 CAPTCHA using challenges optimized for distinguishing between humans and machines  
An audible based electronic challenge system is used to control access to a computing resource by using a test to identify an origin of a voice. The test is based on analyzing a spoken utterance...
8489399 System and method for verifying origin of input through spoken language analysis  
An audible based electronic challenge system is used to control access to a computing resource by using a test to identify an origin of a voice. The test is based on analyzing a spoken utterance...
8473301 Method and apparatus for audio decoding  
A method for decoding an audio signal includes: obtaining a lower-band signal component of an audio signal corresponding to a received code stream when the audio signal switches from a first...
8473298 Pre-resampling to achieve continuously variable analysis time/frequency resolution  
A digital audio signal can be processed using continuously variable time-frequency resolution by selecting a portion of an input digital audio signal, resampling the selected portion of the input...
8473534 Method for use in a digital frequency synthesizer  
A method for use in a digital frequency synthesizer, the method comprising phase to amplitude conversion of an output value of a phase accumulator in said synthesizer, said conversion being...
8462917 Method and apparatus for automatically building conversational systems  
A system and method provides a natural language interface to world-wide web content. Either in advance or dynamically, webpage content is parsed using a parsing algorithm. A person using a...
8438017 Method and apparatus for encoding/decoding audio signal using adaptive LPC coefficient interpolation  
Provided are a method and apparatus for encoding or decoding an audio signal by adaptively interpolating a linear predictive coding (LPC) coefficient. In the method and apparatus of encoding or...
8417516 Method and apparatus for encoding and decoding high frequency signal  
Provided are a method and apparatus for encoding and decoding a high frequency signal by using a low frequency signal. The high frequency signal can be encoded by extracting a coefficient by...
8370153 Speech analyzer and speech analysis method  
A speech analyzer includes a vocal tract and sound source separating unit which separates a vocal tract feature and a sound source feature from an input speech, based on a speech generation model,...
8332225 Techniques to create a custom voice font  
Techniques to create and share custom voice fonts are described. An apparatus may include a preprocessing component to receive voice audio data and a corresponding text script from a client and to...
8301447 Associating source information with phonetic indices  
The present invention relates to creating a phonetic index of phonemes from an audio segment that includes speech content from multiple sources. The phonemes in the phonetic index are directly or...
8296143 Audio signal processing apparatus, audio signal processing method, and program for having the method executed by computer  
An audio waveform processing not imparting any feeling of strangeness and high in definition, in which time stretch and pitch shift are performed by a vocoder method, and the variation of phase...
8244546 Singing synthesis parameter data estimation system  
There is provided a singing synthesis parameter data estimation system that automatically estimates singing synthesis parameter data for automatically synthesizing a human-like singing voice from...
8239192 Transmission error concealment in audio signal  
A method of concealing transmission error in a digital audio signal, wherein a signal that has been decoded after transmission is received, the samples decoded while the transmitted data is valid...
8214203 Method and apparatus for recovering line spectrum pair parameter and speech decoding apparatus using same  
A method and an apparatus for recovering a line spectrum pair (LSP) parameter of a spectrum region when frame loss occurs during speech decoding and a speech decoding apparatus adopting the same...
8195464 Speech processing apparatus and program  
A speech synthesizer includes a periodic component fusing unit and an aperiodic component fusing unit, and fuses periodic components and aperiodic components of a plurality of speech units for...
8185137 Intensity-based maps  
The claimed subject matter relates to a first architecture that can create an intensity map based upon intensity scores, and to a second architecture that can provide intensity scores and can...
8165882 Method, apparatus and program for speech synthesis  
Apparatus and method for generating high quality synthesized speech having smooth waveform concatenation. The apparatus includes a pitch frequency calculation section, a pitch synchronization...
8145477 Systems, methods, and apparatus for computationally efficient, iterative alignment of speech waveforms  
Systems, methods, and apparatus described include waveform alignment operations in which a single set of evaluated cosines and sines is used to calculate cross-correlations of two periodic...
8126578 Clipped-waveform repair in acoustic signals using generalized linear prediction  
A method and system for optimally repairing a clipped audio signal. Clipping occurs when a waveform exceeds a dynamic range of a recording device. Portions of an audio signal exceeding the dynamic...
8126162 Audio signal interpolation method and audio signal interpolation apparatus  
An audio signal interpolation apparatus is configured to perform interpolation processing on the basis of audio signals preceding and/or following a predetermined segment on a time axis so as to...
8121832 Method and apparatus for encoding and decoding high frequency signal  
Provided are a method and apparatus for encoding and decoding a high frequency signal by using a low frequency signal. The high frequency signal can be encoded by extracting a coefficient by...
8065141 Apparatus and method for processing signal, recording medium, and program  
A signal processing apparatus includes a decoding unit, an analyzing unit, a synthesizing unit, and a selecting unit. The decoding unit decodes an input encoded audio signal and outputs a playback...
8015012 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...
8010355 Low complexity noise reduction method  
A method of reducing noise in a speech signal involves converting the speech signal to the frequency domain using a fast fourier transform (FFT), creating a subset of selected spectral subbands,...
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...
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...
7945446 Sound processing apparatus and method, and program therefor  
Spectrum envelope of an input sound is detected. In the meantime, a converting spectrum is acquired which is a frequency spectrum of a converting sound comprising a plurality of sounds, such as...
7899667 Waveform interpolation speech coding apparatus and method for reducing complexity thereof  
A waveform interpolation speech coding apparatus and method for reducing complexity thereof are disclosed. The waveform interpolation speech coding apparatus includes: a waveform interpolation...
7765100 Method and apparatus for recovering line spectrum pair parameter and speech decoding apparatus using same  
A method and an apparatus for recovering a line spectrum pair (LSP) parameter of a spectrum region when frame loss occurs during speech decoding and a speech decoding apparatus adopting the same...
7684978 Apparatus and method for transcoding between CELP type codecs having different bandwidths  
The present invention overcomes problems of tandem coding method such as degradation of speech quality, increased system latency and computations. An apparatus for trans-coding between code...
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,...
7676361 Apparatus, method and program for voice signal interpolation  
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...
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,...
7636662 System and method for audio-visual content synthesis  
A system and method is provided for synthesizing audio-visual content in a video image processor. A content synthesis application processor extracts audio features and video features from...

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