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7617094 |
Methods, apparatus, and products for identifying a conversation
One aspect of the invention is a method of using a computer to identify a conversation. Another aspect is a method for an audio processing system that identifies conversations and enhances each...
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7613616 |
Training a user to execute a sequence of commands in a game environment by using voice control
In a gaming system, a user controls actions of characters in the game environment using speech commands. In a learning mode, available speech commands are displayed in a command menu on a display...
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7613611 |
Method and apparatus for vocal-cord signal recognition
Provided is a method and an apparatus for vocal-cord signal recognition. A signal processing unit receives and digitalizes a vocal cord signal, and a noise removing unit which channel noise...
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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...
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7606701 |
Method and apparatus for determining emotional arousal by speech analysis
An apparatus for determining emotional arousal of a subject by speech analysis, and an associated method. In the method, a speech sample is obtained, the speech sample is pre-processed into silent...
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7603271 |
Speech coding apparatus with perceptual weighting and method therefor
A speech coding apparatus including a perceptual linear prediction (plp) analysis buffer configured to output a pitch period with respect to an original input speech signal and to analyze the input...
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7593847 |
Pitch detection method and apparatus
A pitch detection method and apparatus, the pitch detection apparatus includes: a data rearrangement unit which rearranges voice data on the basis of a center peak of the voice data included in a...
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7590532 |
Voice code conversion method and apparatus
It is so arranged that a voice code can be converted even between voice encoding schemes having different subframe lengths. A voice code conversion apparatus demultiplexes a plurality of code...
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7587312 |
Method and apparatus for pitch modulation and gender identification of a voice signal
A method and apparatus for modulating pitch and identifying gender of a voice signal is provided. The voice modulation apparatus includes an LPC analyzer for obtaining vocal track filter...
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7580893 |
Acoustic signal coding method and apparatus, acoustic signal decoding method and apparatus, and acoustic signal recording medium
Acoustic signal encoder is provided which comprises a subband filter band to divide an original signal into a plurality of frequency bands, a spectrum transformation circuit to detect the amplitude...
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7580512 |
Selection of incoming call screening treatment based on emotional state criterion
An incoming call screening treatment is selected for a call to a called communication device based on an emotional state criterion input by a user of the called communication device.
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7571094 |
Circuits, processes, devices and systems for codebook search reduction in speech coders
An electronic circuit includes storage circuitry and a speech coder coupled with the storage circuitry to have a codebook with sets of track location numbers for respective pulses, the speech coder...
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7571093 |
Method of identifying duplicate voice recording
A method of identifying duplicate voice recording by receiving digital voice recordings, selecting one of the recordings; segmenting the selected recording, extracting a pitch value per segment,...
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7565286 |
Method for recovery of lost speech data
A method for lost speech samples recovery in speech transmission systems is disclosed. The method employs a waveform coder operating on digital speech samples. It exploits the composite model of...
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7558727 |
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...
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7554969 |
Systems and methods for encoding and decoding speech for lossy transmission networks
A voice encoder which utilizes future data, such as the lookahead data typically available for linear predictive coding (LPC), to partially encode a future packet and to send the partial encoding...
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7542898 |
Pitch cycle search range setting apparatus and pitch cycle search apparatus
An apparatus sets a pitch cycle search object in pitch cycle search processing for searching for a pitch cycle included in a linear predictive residual on a per subframe basis. A pitch cycle...
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7529660 |
Method and device for frequency-selective pitch enhancement of synthesized speech
In a method and device for post-processing a decoded sound signal in view of enhancing a perceived quality of this decoded sound signal, the decoded sound signal is divided into a plurality of...
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7523032 |
Speech coding method, device, coding module, system and software program product for pre-processing the phase structure of a to be encoded speech signal to match the phase structure of the decoded signal
The invention relates to a method for use in parametric speech coding. In order to enable an improved parametric coding of speech signals, the method comprises a first step of pre-processing a to...
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7505899 |
Speech code sequence converting device and method in which coding is performed by two types of speech coding systems
A voice code sequence converting device and method for converting a code sequence with low computational complexity by receiving a first code sequence having a pitch period at an input terminal on...
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7493254 |
Pitch determination method and apparatus using spectral analysis
A method and apparatus for detecting a pitch using frequency analysis are provided. An externally input digital signal is analyzed into frequency component values at predetermined time intervals,...
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7490035 |
Pitch shifting apparatus
A pitch shifting apparatus detects peak spectra P 1 and P 2 from amplitude spectra of inputs sound. The pitch shifting apparatus compresses or expands an amplitude spectrum distribution AM 1 in...
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7478045 |
Method and device for characterizing a signal and method and device for producing an indexed signal
In a method for characterizing a signal representing an audio content a measure is determined for a tonality of the signal, whereupon a statement is made about the audio content of the signal on...
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7478039 |
Stochastic modeling of spectral adjustment for high quality pitch modification
Natural-sounding synthesized speech is obtained from pieced elemental speech units that have their super-class identities known (e.g. phoneme type), and their line spectral frequencies (LSF) set in...
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7474739 |
Providing speaker identifying information within embedded digital information
A method of providing identifying information over a voice communications link can include receiving, from a call participant, a personal identification code over the voice communications link,...
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7457746 |
Pitch prediction for packet loss concealment
There is provided a pitch lag predictor for use by a speech decoder to generate a predicted pitch lag parameter. The pitch lag predictor comprises a summation calculator configured to generate a...
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7457744 |
Method of estimating pitch by using ratio of maximum peak to candidate for maximum of autocorrelation function and device using the method
A device and a method for estimating an open-loop pitch in a general speech CODEC are disclosed. The open-loop pitch estimation device includes an autocorrelation function calculation unit which...
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7457743 |
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...
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7451079 |
Emotion recognition method and device
Emotion recognition is performed by extracting a set comprising at least one feature derived from a signal, and processing the set of extracted feature(s) to detect an emotion therefrom. The voice...
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7437298 |
Method and apparatus for mobile phone using semiconductor device capable of inter-processing voice signal and audio signal
A method and apparatus of mobile phone using a semiconductor device includes a first converter, a second converter, a first digital processing circuit, and a second digital processing circuit. The...
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7430506 |
Preprocessing of digital audio data for improving perceptual sound quality on a mobile phone
Since music signals are encoded by a voice encoding method optimized to human voice signals such as EVRC (Enhanced Variable Rate Coding) in a cellular communication system, the music signals are...
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7411985 |
Low-complexity packet loss concealment method for voice-over-IP speech transmission
A low complexity packet loss concealment method for use in voice-over-IP speech transmission calculates a cross-correlation of previous speech data to estimate the pitch period of the previous...
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7406419 |
Quality assessment tool
This invention relates to a new parameter suitable for use in non-intrusive speech quality assessment system. The invention provides a method of generating a parameter from a signal comprising a...
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7403893 |
Method and apparatus for reconstructing voice information
A communication system includes a destination that receives voice samples and a voice parameter generated by a source. The destination uses the voice samples and voice parameter to reconstruct...
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7398204 |
Bit rate reduction in audio encoders by exploiting inharmonicity effects and auditory temporal masking
The present invention relates to a method for encoding an audio signal. In a first embodiment a model relating to temporal masking of sound provided to a human ear is provided. A temporal masking...
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7383175 |
Pitch adaptive equalization for improved audio
A pitch adaptive circuit ( 200 ) includes an equalizer control circuit ( 206 ) that evaluates the pitch of the speech signals that are being processed and depending on the pitch information, the...
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7376562 |
Method and apparatus for nonlinear frequency analysis of structured signals
The present invention relates to systems and methods for processing acoustic signals, such as music and speech. The method involves nonlinear frequency analysis of an incoming acoustic signal. In...
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7376557 |
Method and apparatus of overlapping and summing speech for an output that disrupts speech
A privacy apparatus adds a privacy sound based on a speaker's own voice into the environment, thereby confusing listeners as to which of the sounds is the real source. This permits disruption of...
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7376554 |
Excitation for higher band coding in a codec utilising band split coding methods
Methods and arrangements are disclosed for digitally encoding and decoding sound—An input signal is split ( 811 ) into a primary frequency band and at least one secondary frequency band. The...
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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...
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7359859 |
Computer-based training system and method for enhancing language listening comprehension
The specification discloses a computer-based system and method for enhancing language listening comprehension. The system and method perform analyses according to the answers entered by the...
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7353168 |
Method and apparatus to eliminate discontinuities in adaptively filtered signals
A method to eliminate discontinuities in an adaptively filtered signal includes filtering a beginning portion of a current signal frame using a past set of filter coefficients, thereby producing a...
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7353167 |
Translating a voice signal into an output representation of discrete tones
A system and method for creating a ring tone for an electronic device takes as input a phrase sung in a human voice and transforms it into a control signal controlling, for example, a ringer on a...
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7340393 |
Emotion recognizing method, sensibility creating method, device, and software
An object of the invention is to provide an emotion detecting method capable of detecting emotion of a human accurately, and provide sensibility generating method capable of outputting sensibility...
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7337107 |
Perceptual harmonic cepstral coefficients as the front-end for speech recognition
Pitch estimation and classification into voiced, unvoiced and transitional speech were performed by a spectro-temporal auto-correlation technique. A peak picking formula was then employed. A...
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7330738 |
Apparatus and method for canceling residual echo in a mobile terminal of a mobile communication system
An apparatus for canceling an echo signal in a mobile terminal of a mobile communication system. A double talk detector (DTD) receives a first signal by canceling an estimated echo signal from a...
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7328149 |
Audio segmentation and classification
A portion of an audio signal is separated into multiple frames from which one or more different features are extracted. These different features are used, in combination with a set of rules, to...
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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...
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7315813 |
Method of speech segment selection for concatenative synthesis based on prosody-aligned distance measure
A method of speech segment selection for concatenative synthesis based on prosody-aligned distance measure is disclosed. This method is based on comparison of speech segments segmented from a...
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7305337 |
Method and apparatus for speech coding and decoding
The present invention includes a method for speech encoding and decoding and a design of speech coder and decoder. The characteristic of speech encoding method relies on the type of data with high...
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