PatentDOI
Speech segment coding and pitch control methods for speech synthesis systems
Lee Chong Rak,Yong Kyu Park +1 more
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TLDR
In this article, a method and system for synthesizing speech utilizing a periodic waveform decomposition and relocation coding scheme was proposed, where signals of voiced sound interval among original speech are decomposed into wavelets, each of which corresponds to a speech waveform for one period made by each glottal pulse.Abstract:
The present invention relates to a method and system for synthesizing speech utilizing a periodic waveform decomposition and relocation coding scheme. According to the scheme, signals of voiced sound interval among original speech are decomposed into wavelets, each of which corresponds to a speech waveform for one period made by each glottal pulse. These wavelets are respectively coded and stored. The wavelets nearest to the positions where the wavelets are to be located are selected from stored wavelets and decoded. The decoded wavelets are superposed to each other such that original sound quality can be maintained and duration and pitch frequency of speech segment can be controlled arbitrarily.read more
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References
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Proceedings ArticleDOI
A diphone synthesis system based on time-domain prosodic modifications of speech
TL;DR: A novel time-domain algorithm is presented for text-to-speech synthesis using diphone concatenation based on the pitch-synchronous overlap-add (PSOLA) approach and is capable of good quality prosodic modifications of natural speech.
Patent
Automatic speaker verification by non-linear time alignment of acoustic parameters
TL;DR: In this paper, a nonlinear process is used to align the sample and reference utterances through a piece-wise linear continuous transformation of the time scale, and the extent of time transformation that is required to achieve maximum similarity also influences the decision to accept or reject the identity claim.
PatentDOI
Phonetic hidden markov model speech synthesizer
TL;DR: In this article, a method and a system for synthesizing speech from unrestricted text, based on the principle of associating a written string of text with a sequence of speech features vectors that most probably model the corresponding speech utterance, is presented.
PatentDOI
Method and apparatus for encoding speech
TL;DR: In this paper, the Fourier transform is equalized by normalizing the spectrum coefficients to a curve which approximates the shape of the spectrum, and the spectrum is normalized by scaling different subbands differently to flatten the spectrum.
Proceedings ArticleDOI
Improving naturalness in text-to-speech synthesis using natural glottal source
TL;DR: Various methods to improve text-to-speech in its naturalness and its ability to model individual speakers are discussed, and a multisource method which utilizes different types of glottal source by cross-fading techniques is proposed.