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Data Processing: Speech Signal Processing, Linguistics, Language Translation, And Audio Compression/decompression > Speech Signal Processing > For Storage Or Transmission > Frequency > Specialized Information > Pitch PitchPitch 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.11/02/06 - 20060247921 - Speech dialog method and system An electronic device (300) for speech dialog includes functions that receive (305, 105) a speech phrase that comprises a request phrase that includes an instantiated variable (215), generate (335, 115) pitch and voicing characteristics (315) of the instantiated variable, and performs voice recognition (319, 125) of the instantiated variable to ... 10/05/06 - 20060224380 - Pitch pattern generating method and pitch pattern generating apparatus A pitch pattern generating method includes preparing a memory to store a plurality of pitch patterns each extracted from natural speech, and pattern attribute information corresponding to the pitch patterns, inputting language attribute information obtained by analyzing a text including prosody control units, selecting, from the pitch patterns stored in ... 09/14/06 - 20060206316 - Audio coding and decoding apparatuses and methods, and recording mediums storing the methods Audio coding and decoding apparatuses and methods that can optimize the quality of an audio signal including harmonics, and recording mediums storing the methods. An audio coding apparatus includes: a first harmonic coding module performing first harmonic coding on an input audio signal using a pitch lag of the input ... 08/31/06 - 20060195315 - Sound synthesis processing system To provide a pitch waveform signal division device and the like for making it possible to compress a data capacity of data representing a sound efficiently. A computer C1 arranges time lengths of sections for a unit pitch of sound data, which the computer C1 compresses, to be identical to ... 08/10/06 - 20060178874 - Method for analyzing fundamental frequency information and voice conversion method and system implementing said analysis method A method for analyzing fundamental frequency information contained in voice samples includes at least one analysis step (2) for the voice samples which are grouped together in frames in order to obtain information relating to the spectrum and information relating to the fundamental frequency for each sample frame; a step ... 08/10/06 - 20060178873 - Method of synthesis for a steady sound signal The present invention relates to a method of synthesizing a first sound signal based on a second sound signal, the first sound signal having a required first fundamental frequency and the second sound signal having a second fundamental frequency, the method comprising the steps of, a) determining of required pitch ... 08/03/06 - 20060173676 - Voice synthesizer of multi sounds In a voice synthesizer, an envelope acquisition portion obtains a spectral envelope of a reference frequency spectrum of a given voice. A spectrum acquisition portion obtains a collective frequency spectrum of a plurality of voices which are generated in parallel to one another. An envelope adjustment portion adjusts a spectral ... 07/06/06 - 20060149535 - Method for controlling speed of audio signals A method for controlling the speed of audio signals is provided. The method is based on a TSM that uses an optimized AMDF and an OLA. According to the method, the number of frame sets is differently set depending a TSM speed rate to set the interval of a speed ... 07/06/06 - 20060149534 - Speech coding apparatus and method therefor A speech coding apparatus including a perceptual linear prediction (pip) analysis buffer configured to output a pitch period with respect to an original input speech signal and to analyze the input speech signal using a pip process to output a pip coefficient, an excitation signal generator configured to generate and ... 06/29/06 - 20060143002 - Systems and methods for encoding an audio signal Methods, computer code products, devices, modules, systems, and encoders are disclosed which are configured to use an adaptive lag search window for determining a lag estimate for a current frame of information in an audio encoding system. The system can determine if the lag estimate is reliable and if not ... 06/22/06 - 20060136199 - Advanced periodic signal enhancement An enhancement system improves the perceptual quality of a processed speech. The system includes a delay unit that delays a signal received through a discrete input. A spectral modifier linked to the delay unit is programmed to substantially flatten the spectral character of a background noise. An adaptive filter linked ... 05/25/06 - 20060111898 - Formant tracking apparatus and formant tracking method A formant tracking apparatus and a formant tracking method are provided. The formant tracking apparatus includes: a framing unit dividing an input voice signal into a plurality of frames; a linear prediction analyzing unit obtaining linear prediction coefficients for each frame; a segmentation unit segmenting each of the linear prediction ... 05/11/06 - 20060100862 - Acoustic models with structured hidden dynamics with integration over many possible hidden trajectories A method of producing at least one possible sequence of vocal tract resonance (VTR) for a fixed sequence of phonetic units, and producing the acoustic observation probability by integrating over such distributions is provided. The method includes identifying a sequence of target distributions for a VTR sequence corresponding to a ... 05/04/06 - 20060095256 - Adaptive filter pitch extraction An enhancement system extracts pitch from a processed speech signal. The system estimates the pitch of voiced speech by deriving filter coefficients of an adaptive filter and using the obtained filter coefficients to derive pitch. The pitch estimation may be enhanced by using various techniques to condition the input speech ... 05/04/06 - 20060095255 - Pitch conversion method for reducing complexity of transcoder The present invention provides a pitch conversion method for reducing complexity of a transcoder for optimizing a speech quality and a complexity using characteristics of encoder in a transmitter and decoder in a receiver. The pitch conversion method for reducing complexity of the transcoder includes: classifying plural frames transmitted from ... 05/04/06 - 20060095254 - Methods, systems and computer program products for detecting musical notes in an audio signal Methods, system and/or computer program products for detection of a note include receiving an audio signal and generating a plurality of frequency domain representations of the audio signal over time. A time domain representation is generated from the plurality of frequency domain representations. A plurality of edges are detected in ... 04/27/06 - 20060089832 - Method for improving the coding efficiency of an audio signal Coding an audio signal includes selecting a reference sequence that has the smallest error relative to a sequence of the audio signal, calculating pitch predictor coefficients for the selected reference sequence using one of a set of pitch predictor orders, producing a predicted sequence from the selected reference sequence using ... 04/13/06 - 20060080088 - Method and apparatus for estimating pitch of signal A pitch estimating method and apparatus in which mixture Gaussian distributions based on candidate pitches having high period estimating values are generated, a mixture Gaussian distribution having a high likelihood is selected and dynamic programming is executed so that the pitch of the speech signal can be accurately estimated. The ... 04/13/06 - 20060080087 - Pitch perception in an auditory prosthesis A sound processing process, device and software are disclosed which seek to improve pitch perception, with particular application to auditory prostheses. After input sound signals are processed into channels, an algorithm is applied to selectively increase the modulation depth of the envelope signals. In certain embodiments, the channelized signals are ... 04/06/06 - 20060074639 - Methods, devices and systems for improved pitch enhancement and autocorrelation in voice codecs An electronic circuit (1020) includes a storage circuit (Flash) and a microprocessor (1110) operable together with the storage circuit as a speech coder. The speech coder has a backward pitch enhancement (FIG. 6) in frames or subframes having a length and at least one main pulse and at least one ... 02/09/06 - 20060031063 - Automatic performance apparatus for reproducing music piece A CPU 21 sequentially changes over plural music pieces and reproduces the same by a program processing. Upon the changeover of the music piece, the volume of the tone signal that is being generated at each tone generating channel in a tone generating circuit 14 is gradually decreased, whereby the ... 02/02/06 - 20060025990 - Method and system for improving voice quality of a vocoder The invention concerns a method (300) and system (100) for improving voice quality of a vocoder (138, 158). The method includes the steps of monitoring (312) a pitch of a voice signal (400) at a transmitting unit (110); when the pitch of the voice signal reaches a predetermined threshold (840), ... 01/19/06 - 20060015327 - Music detection with low-complexity pitch correlation algorithm A method is provided for detecting music in a speech signal having a plurality of frames. The method comprises obtaining one or more first pitch correlation candidates from a first frame of the plurality of frames; obtaining one or more second pitch correlation candidates from a second frame of the ... 12/15/05 - 20050278167 - 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 synthesizing personalized or modified human (or other animate) speech upon command ... 12/08/05 - 20050273321 - Audio signal time-scale modification method using variable length synthesis and reduced cross-correlation computations Disclosed is an audio signal time-scale modification which utilizes variable length synthesis for the improvement of output audio quality and reduced cross-correlation computations for the reduction of computation loads to a processor. An analysis window consisting of N+Kmax audio samples is selected from an input audio samples and is shifted ... 11/03/05 - 20050246165 - System and method for analyzing and improving a discourse engaged in by a number of interacting agents A computerized method of analyzing a discourse engaged in by a plurality of interacting agents includes measuring a first set of prosodic features associated with the discourse and, at least partially based on the first set of measured prosodic features, determining a target set of prosodic features that are likelier ... 10/27/05 - 20050240396 - System and method for musical sonification of data parameters in a data stream One embodiment of a musical sonification system and method receives a data stream including different data parameters. The sonification system may apply different sonification processes to the different data parameters to produce a musical rendering of the data stream. In one embodiment, the sonification system and method maps data parameters ... 10/20/05 - 20050234712 - Providing shorter uniform frame lengths in dynamic time warping for voice conversion A method and apparatus for frame matching is disclosed. The frame matching includes receiving numbers of frames in first and second input signals within a voice unit. A uniform frame length of the first input signal is then updated to a time sample period of the first input signal divided ... 10/13/05 - 20050228651 - Robust real-time speech codec Various strategies for rate/quality control and loss resiliency in an audio codec are described. The various strategies can be used in combination or independently. For example, a real-time speech codec uses intra frame coding/decoding, adaptive multi-mode forward error correction [“FEC”], and rate/quality control techniques. Intra frames help a decoder recover ... 09/15/05 - 20050203732 - System and method for voice user interface navigation A Voice User Interface (VUI) or Interactive Voice Response (IVR) system utilizes three levels of navigation (e.g. Main Menu, Services, and Helper Commands) in presenting information units arranged in sets. The units are “spoken” by a system in a group to a human user and the group of information at ... 07/07/05 - 20050149321 - Pitch detection of speech signals Pitch detection of speech signals finds numerous applications in karaoke, voice recognition and scoring applications. While most of the existing techniques rely on time domain methods, the invention utilizes frequency domain methods. There is provided a method and system for determining the pitch of speech from a speech signal. The ... ### FreshPatents.com Support |