1
Dina Yashchin, Sara Basson, Ashok Kalyanswamy, Kim Silverman: Speech synthesis method for operator assistance telecommunications calls comprising a plurality of text-to-speech (TTS) devices. Nynex Science and Technology, Peter L Michaelson, Michael P Straub, Michaelson& Wallace, November 3, 1998: US05832433 (90 worldwide citation)

Methods and apparatus are described for providing automated operator services and in particular, a reverse directory assistance service. A calling customer is connected to an automated system that prompts the caller for a listing identifier which is used by the system to retrieve a textual listing c ...


2
Takehiko Kagoshima, Masami Akamine: Speech synthesis method. Kabushiki Kaisha Toshiba, Oblon Spivak McClelland Maier & Neustadt P C, April 22, 2003: US06553343 (82 worldwide citation)

A speech synthesis method subjects a reference speech signal to windowing to extract an aperiodic speech pitch wave from the reference speech signal. A linear prediction coefficient is generated by subjecting the reference speech signal to a linear prediction analysis. The aperiodic speech pitch wav ...


3
Kenichiro Kobayashi, Nobuhide Yamazaki, Makoto Akabane: Speech synthesis method and apparatus, program, recording medium and robot apparatus. Sony Corporation, Frommer Lawrence & Haug, William S Frommer, Thomas F Presson, June 13, 2006: US07062438 (81 worldwide citation)

A sentence or a singing is to be synthesized with a natural speech close to the human voice. To this end, singing metrical data are formed in a tag processing unit 211 in a singing synthesis unit 212 in a speech synthesis apparatus 200 based on singing data and an analyzed text portion. A language a ...


4
Bernd Moebius, Joseph Philip Olive, Michael Abraham Tanenblatt, Jan Pieter VanSanten: Speech synthesizer having an acoustic element database. Lucent Technologies, Robert E Rudnick, May 12, 1998: US05751907 (36 worldwide citation)

A speech synthesis method employs an acoustic element database that is established from phonetic sequences occurring in an interval of a speech signal. In establishing the database, trajectories are determined for each of the phonetic sequences containing a phonetic segment that corresponds to a par ...


5
Takehiko Kagoshima, Masami Akamine: Speech synthesis method. Kabushiki Kaisha Toshiba, Oblon Spivak McClelland Maier Neustadt P C, May 29, 2001: US06240384 (31 worldwide citation)

In a synthesis unit generator, a plurality of synthesis speech segments are generated by synthesizing training speech segments labeled with phonetic contexts and input speech segments while altering the pitch/duration of the input speech segments in accordance with the pitch/duration of the training ...


6
Kenzo Itoh: Text-to-speech synthesis by concatenation using or modifying clustered phoneme waveforms on basis of cluster parameter centroids. Nippon Telegraph and Telephone Corporation, Pollock Vande Sande & Priddy, April 14, 1998: US05740320 (30 worldwide citation)

In a waveform compilation (waveform concatenation or synthesis-by-rule) type speech synthesis method and speech synthesizer, phoneme waveform segments in natural speech waveforms are clustered, and one of the phoneme waveform segments having a parameter nearest the centroid of LPC parameters of all ...


7
Masanobu Abe: Speech synthesis method utilizing auxiliary information, medium recorded thereon the method and apparatus utilizing the method. Nippon Telegraph and Telephone Corporation, Pollock Vande Sande & Amernick, August 17, 1999: US05940797 (23 worldwide citation)

In a method and apparatus which use actual speech as auxiliary information and synthesize speech by speech synthesis by rule, prosodic information for a phoneme sequence of each word of a word sequence obtained by an analysis of an input text is set by referring to a word dictionary, and a speech wa ...


8
Peter Buth, Frank Dufhues: Text-based speech synthesis method containing synthetic speech comparisons and updates. Nokia Corporation, Antonelli Terry Stout & Kraus, April 8, 2003: US06546369 (22 worldwide citation)

The invention specifies a simple reproduction method with improved pronunciation for voice-controlled systems with text-based speech synthesis even when the stored train of characters to be synthesized does not follow the general rules of speech reproduction. According to the invention, the method o ...


9
Hiroyuki Manabe, Akira Hiraiwa, Toshiaki Sugimura: Speech recognition system, speech recognition method, speech synthesis system, speech synthesis method, and program product having increased accuracy. NTT Docomo, Oblon Spivak McClelland Maier & Neustadt P C, May 6, 2008: US07369991 (19 worldwide citation)

The object of the present invention is to keep a high success rate in recognition with a low-volume of sound signal, without being affected by noise. The speech recognition system comprises a sound signal processor 10 configured to acquire a sound signal, and to calculate a sound signal parameter ba ...


10
Takehiko Kagoshima, Masami Akamine: Speech synthesis method. Kabushiki Kaisha Toshiba, Oblon Spivak McClelland Maier & Neustadt P C, February 27, 2007: US07184958 (14 worldwide citation)

A speech synthesis method subjects a reference speech signal to windowing to extract a speech pitch wave having a window function of a window length double a pitch period of the reference speech signal from the reference speech signal. A linear prediction coefficient is generated by subjecting the r ...