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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...
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...
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...
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...
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...
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...
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 ....
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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)...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
Matches 1 - 50 out of 73 1 2 >