Data processing: speech signal processing – linguistics – language – Speech signal processing – Synthesis
Patent
1996-05-02
1998-10-13
MacDonald, Allen R.
Data processing: speech signal processing, linguistics, language
Speech signal processing
Synthesis
704209, 704217, G10L 908
Patent
active
058227326
ABSTRACT:
A speech modification or enhancement filter, and apparatus, system and method using the same. Synthesized speech signals are filtered to generate modified synthesized speech signals. From spectral information represented as a multi-dimensional vector, a filter coefficient is determined so as to ensure that formant characteristics of the modified synthesized speech signals are enhanced in comparison with those of the synthesized speech signal and in accordance with the spectral information. The spectral information can be any one of LSP information, PARCOR information and LAR information. A degree of freedom of design of the speech modification filter used for the aural suppression of quantizing noise contained in the synthesized speech signals is thus heightened leading to the improvement of intelligibility of said synthesized speech signals. A good formant enhancement effect can be obtained without allowing any perceptible level of distortions to occur within a range of permissible spectral gradients.
REFERENCES:
patent: 4393272 (1983-07-01), Itakura et al.
patent: 5187745 (1993-02-01), Yip et al.
patent: 5226083 (1993-07-01), Taguchi
patent: 5241650 (1993-08-01), Gerson et al.
patent: 5307441 (1994-04-01), Tzeng
patent: 5579437 (1996-11-01), Fette et al.
patent: 5596677 (1997-01-01), Jarvinen et al.
Kazuhito Koishida, Keiichi Tokuda, Takao Kobayashi & Satoshi Imai "Speech Coding System Based on Adaptive Mel-Cepstral Analysis for Noisy Channel" Tokyo Institute of Technology pp. 257-258.
Dorvil Richemond
MacDonald Allen R.
Mitsubishi Denki & Kabushiki Kaisha
LandOfFree
Filter for speech modification or enhancement, and various appar does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Filter for speech modification or enhancement, and various appar, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filter for speech modification or enhancement, and various appar will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-326921