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7580843 |
Synthesis subband filter process and apparatus
A synthesis subband filter apparatus is provided. The apparatus is used for processing 18 sets of signals which each includes 32 subband sampling signals in accordance with a specification...
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7562018 |
Speech synthesis method and speech synthesizer
A language processing portion ( 31 ) analyzes a text from a dialogue processing section ( 20 ) and transforms the text to information on pronunciation and accent. A prosody generation portion ( 32...
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7558732 |
Method and system for computer-aided speech synthesis
Method and system for computer-aided speed synthesis for synthesizing electronic text by performing a predefined series of rules-based analyses in a predefined order, each of the analyses operating...
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7536305 |
Mixed lossless audio compression
A mixed lossless audio compression has application to a unified lossy and lossless audio compression scheme that combines lossy and lossless audio compression within a same audio signal. The mixed...
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7454348 |
System and method for blending synthetic voices
A system and method for generating a synthetic text-to-speech TTS voice are disclosed. A user is presented with at least one TTS voice and at least one voice characteristic. A new synthetic TTS...
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7401021 |
Apparatus and method for voice modulation in mobile terminal
An apparatus for voice modulation in a mobile terminal comprises: a voice input unit being inputted a voice of a subscriber and generating an analog voice signal; a voice modulation unit for...
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7379873 |
Singing voice synthesizing apparatus, singing voice synthesizing method and program for synthesizing singing voice
Voice synthesis unit data stored in a phoneme database 10 is selected by a voice synthesis unit selector 12 in accordance with MIDI information stored in a performance data storage unit 11 ....
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7337117 |
Apparatus and method for phonetically screening predetermined character strings
An apparatus for phonetically screening predetermined character strings. The apparatus includes a text-to-speech module, and a phonetic screening module in communication with the text-to-speech...
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7336565 |
Talking alarm clock
An educational alarm clock radio is provided that speaks a new word each day when the alarm goes off, the words each being stored in a memory cartridge as an individual increments of information in...
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7162417 |
Speech synthesizing method and apparatus for altering amplitudes of voiced and invoiced portions
An amplitude altering magnification (r) applied to sub-phoneme units of a voiced portion and an amplitude altering magnification s to be applied to sub-phoneme units of an unvoiced portion are...
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7069217 |
Waveform synthesis
A synthesizer is disclosed in which a speech waveform is synthesized by selecting a synthetic starting waveform segment and then generating a sequence of further segments. The further waveform...
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7050966 |
Sound intelligibility enhancement using a psychoacoustic model and an oversampled filterbank
A system and method of improving signal intelligibility over an interference signal is provided. The system includes a psychoacoustic professor having a psychoacoustic model wherein the level of a...
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7010488 |
System and method for compressing concatenative acoustic inventories for speech synthesis
A system and method is used to compress concatenative acoustic inventories for speech. Instead of using general purpose signal compression methods such as vector quantization, the method of the...
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6999520 |
Efficient FFT implementation for asymmetric digital subscriber line (ADSL)
A method and apparatus for extending the dynamic range of an integer or fixed-point Fast Fourier Transform (“FFT”) system that may be used in communications devices such as ADSL modems. The...
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6963842 |
Efficient system and method for converting between different transform-domain signal representations
A memory-efficient system converting a signal from a first transform domain to a second transform domain. The system includes a first mechanism that obtains an input signal expressed via a first...
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6950799 |
Speech converter utilizing preprogrammed voice profiles
A speech processing system modifies various aspects of input speech according to a user-selected one of various preprogrammed voice fonts. Initially, the speech converter receives a formants signal...
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6947731 |
Method for converting status messages output in spoken form
A method for conversion of a voice output of appliance statuses, wherein three spoken phrases are stored for each appliance to be controlled, with the first spoken phrase being allocated to a first...
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6845359 |
FFT based sine wave synthesis method for parametric vocoders
A Fast Fourier Transform (FFT) based voice synthesis method 110, program product and vocoder. Sounds, e.g., speech and audio, are synthesized from multiple sine waves. Each sine wave component is...
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6804649 |
Expressivity of voice synthesis by emphasizing source signal features
Voice synthesis with improved expressivity is obtained in a voice synthesiser of source-filter type by making use of a library of source sound categories in the source module. Each source sound...
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6795807 |
Method and means for creating prosody in speech regeneration for laryngectomees
A device and a method to be used by laryngeally impaired people to improve the naturalness of their speech. An artificial sound creating mechanism which forms a simulated glottal pulse in the vocal...
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6785652 |
Method and apparatus for improved duration modeling of phonemes
A method and an apparatus for improved duration modeling of phonemes in a speech synthesis system are provided. According to one aspect, text is received into a processor of a speech synthesis...
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6778962 |
Speech synthesis with prosodic model data and accent type
A speech synthesizing method includes determining the accent type of the input character string, selecting the prosodic model data from a prosody dictionary for storing typical ones of the prosodic...
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6757653 |
Reassembling speech sentence fragments using associated phonetic property
A method of composing messages for speech output and the improvement of the quality of reproduction of speech outputs. A series of original sentences for messages is segmented and stored as audio...
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6754628 |
Speaker recognition using cohort-specific feature transforms
Methods and apparatus for facilitating speaker recognition, wherein, from target data that is provided relating to a target speaker and background data that is provided relating to at least one...
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6658382 |
Audio signal coding and decoding methods and apparatus and recording media with programs therefor
An input signal is time-frequency transformed, then the frequency-domain coefficients are divided into coefficient segments of about 100 Hz width to generate a sequence of coefficient segments, and...
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6553344 |
Method and apparatus for improved duration modeling of phonemes
A method and an apparatus for improved duration modeling of phonemes in a speech synthesis system are provided. According to one aspect, text is received into a processor of a speech synthesis...
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6549884 |
Phase-vocoder pitch-shifting
A system for pitch-shifting an audio signal wherein resampling is done in the frequency domain. The system includes a method for pitch-shifting a signal by converting the signal to a frequency...
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6529874 |
Clustered patterns for text-to-speech synthesis
A representative pattern memory stores a plurality of initial representative patterns as a noise pattern. Different attribute is affixed to each initial representative pattern. A pitch pattern...
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6463412 |
High performance voice transformation apparatus and method
A high performance voice transformation apparatus and method is provided in which voice input is transformed into a symbolic representation of phonemes in the voice input. The symbolic...
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6336092 |
Targeted vocal transformation
The invention is a method for transforming a source individual's voice so as to adopt the characteristics of a target individual's voice. The excitation signal component of the target individual's...
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6311158 |
Synthesis of time-domain signals using non-overlapping transforms
Techniques for synthesizing a time-domain signal. The time-domain signal is partitioned into a number of time-domain frames and a waveform in generated for each time-domain frame. Each waveform...
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6278971 |
Phase detection apparatus and method and audio coding apparatus and method
An apparatus and procedure for performing phase detection in which one-pitch cycle of an input signal waveform is cut out on a time axis. The cut-out one pitch cycle is filled with zeroes to form 2...
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6253165 |
System and method for modeling probability distribution functions of transform coefficients of encoded signal
The coder/decoder (codec) system of the present invention includes a coder and a decoder. The coder includes a multi-resolution transform processor, such as a modulated lapped transform (MLT)...
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6199039 |
Synthesis subband filter in MPEG-II audio decoding
An MPEG-II audio decoder with a synthesis subband filter includes a fast IMDCT (Inverse Modified Discrete Cosine Transform) module and an IPQMF (Inverse Pseudo Quadrature Mirror Filter) module. The...
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6182042 |
Sound modification employing spectral warping techniques
A system and method for modifying a subportion of information contained in an audio, such as magnitude information, without substantially effecting the remaining information contained therein, such...
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6173250 |
Apparatus and method for speech-text-transmit communication over data networks
An apparatus and method for speech-text-transmit communication over data networks includes speech recognition devices and text to speech conversion devices that translate speech signals input to...
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6163769 |
Text-to-speech using clustered context-dependent phoneme-based units
A text-to-speech system includes a storage device for storing a clustered set of context-dependent phoneme-based units of a target speaker. In one embodiment, decision trees are used wherein each...
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6115687 |
Sound reproducing speed converter
An apparatus and method that reproduces a voice signal at different rates without a change in pitch. Neighboring voice waveforms having a same length and minimum form differences from an input...
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6081781 |
Method and apparatus for speech synthesis and program recorded medium
Data in the same range of the fundamental frequency F 0 as speech segments are used as learning data to prepare a reference codebook CB M for a spectrum envelope. The same learning data for a...
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6070138 |
System and method of eliminating quotation codes from an electronic mail message before synthesis
In order to provide a practical E-mail reader for reading out E-mails phonetically enabling easy grasping of their contents by a user with its vocal output even when quotation codes or header...
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6021388 |
Speech synthesis apparatus and method
A speech synthesis apparatus for outputting synthesized speech on the basis of a parameter sequence of a speech waveform includes a parameter generation unit which generates a parameter sequence...
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5974376 |
Method for transmitting multiresolution audio signals in a radio frequency communication system as determined upon request by the code-rate selector
The present invention relates to a method for transmitting multiresolution audio signals via wireless devices in a radio frequency communication system wherein audio signals are decomposed into...
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5970454 |
Synthesizing speech by converting phonemes to digital waveforms
Synthetic speech is generated by production of a digital waveform from a text in phonemes. A linked database is used which comprises an extended text in phonemes and its equivalent in the form of a...
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5970440 |
Method and device for short-time Fourier-converting and resynthesizing a speech signal, used as a vehicle for manipulating duration or pitch
A method is described for short-time Fourier-converting a speech signal and for resynthesizing an output speech signal from the modulus of its short-time Fourier transform and from an initial...
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5832437 |
Continuous and discontinuous sine wave synthesis of speech signals from harmonic data of different pitch periods
A method for decoding encoded speech signals uses sine wave synthesis based on harmonics of the original speech signal. The harmonics are obtained by transforming the original speech signal from a...
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5809468 |
Voice recording and reproducing apparatus having function for initializing contents of adaptive code book
A voice recording/reproducing apparatus comprises a coding parameter extracting section for extracting a coding parameter by use of either past voice data or past parameter. A coding section codes...
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5774835 |
Method and apparatus of postfiltering using a first spectrum parameter of an encoded sound signal and a second spectrum parameter of a lesser degree than the first spectrum parameter
A second spectrum parameter of which degree is lower than that of a first spectrum parameter is calculated based on the first spectrum parameter that is output from an encoder. A spectrum...
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5765126 |
Method and apparatus for variable length encoding of separated tone and noise characteristic components of an acoustic signal
A signal encoding apparatus for encoding an acoustic signal. This signal encoding apparatus includes a transform circuit for transforming an inputted acoustic signal into frequency components, a...
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5758320 |
Method and apparatus for text-to-voice audio output with accent control and improved phrase control
A text-to-voice audio output unit includes a storage section for storing analyzed information pertaining to words, boundaries between articulations, and accents obtained by analyzing an input...
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5737718 |
Method, apparatus and recording medium for a coder with a spectral-shape-adaptive subband configuration
A method for encoding the information is provided which realizes a high encoding efficiency especially for tonal acoustic signals without lowering the sound quality. An acoustic signal from a...
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