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检索条件"主题词=linear predictive coding"
2458 条 记 录,以下是2421-2430 订阅
排序:
Recursive autocorrelation computation for LPC analysis
Recursive autocorrelation computation for LPC analysis
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International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
作者: T. Barnwell School of Electrical Engineering Georgia Institute of Technology Atlanta GA USA
A method for recursively calculating the autocorrelation functions for LPC analysis in a vocoder environment is developed theoretically and studied experimentally. The method has three specific advantages: (1) it requ... 详细信息
来源: 评论
Optimum speech classification and its application to adaptive noise cancellation
Optimum speech classification and its application to adaptiv...
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International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
作者: R. McAulay Lincoln Laboratory M.I.T. Lexington MA USA
In an attempt to develop a more robust vocoder an adaptive noise-stripping Wiener filter is used to prefilter the noisy speech. In order to adapt to quasi-stationary noise a speech classifier is developed that detects... 详细信息
来源: 评论
Quality ratings of LPC vocoders: Effects of number of poles, quantization, and frame rate.
Quality ratings of LPC vocoders: Effects of number of poles,...
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International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
作者: A. Huggins R. Viswanathan J. Makhoul Bolt Beranek and Newman 슠Inc. Cambridge MA USA
Four values for number of poles (13, 11, 9, 8) were combined factorially with three values of step size for quantization of log area ratios (0.5, 1, 2 dB), and with four values of frame rate (100, 67, 50, 33 per secon... 详细信息
来源: 评论
linear prediction applied to time varying all pole signals
Linear prediction applied to time varying all pole signals
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International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
作者: J. Turner B. Dickinson Department of Electrical Engineering & Computer Science Princeton University Princeton NJ USA
An improved linear predictive coding scheme is proposed that allows for some adaptation of the analysis time interval according to the signal's stationarity properties. A fixed short time interval is used for anal... 详细信息
来源: 评论
A real-time floating point variable frame rate LPC vocoder
A real-time floating point variable frame rate LPC vocoder
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International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
作者: E. Cole T. Boynton USC Information Sciences Institute Marina del rey CA USC Information Sciences Institute Marina del Rey CA USA
As part of a Defense Advanced Research Projects Agency program investigating voice transmission over a packet-switched computer network, a real-time variable frame rate LPC vocoder has been implemented at USC-ISI. The... 详细信息
来源: 评论
Time-varying parametric modeling of speech
Time-varying parametric modeling of speech
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IEEE Conference on Decision and Control
作者: Mark Hall Alan V. Oppenheim Alan Willsky Naval Surface Weapons Center Dahlgren VA USA Department of Electrical Engineering and Computer Science and Research Laboratory of Electronics Massachusetts Institute of Technology Cambridge MA USA Department of Electrical Engineering and Computer Science and Electronic Systems Laboratory Massachusetts Institute of Technology Cambridge MA USA
来源: 评论
Voiced-unvoiced-silence detection using the Itakura LPC distance measure
Voiced-unvoiced-silence detection using the Itakura LPC dist...
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International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
作者: L. Rabiner M. Sambur Bell Laboratories Murray Hill New Jersey Bell Laboratories Murray Hill NJ USA
One of the most difficult problems in speech analysis is reliable discrimination among silence, unvoiced speech, and voiced speech which has been transmitted over a telephone line. Although several methods have been p... 详细信息
来源: 评论
Word recognition and encoding using poles
Word recognition and encoding using poles
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International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
作者: D. Tuffelli B. Groc E.N.S. d'Electronique et de radioélectricite Grenoble
At learning, LPC is used to get the reference poles corresponding to the words. During the recognition, the order of the filtering is variable and imposed by the dictionary. The distance between an input speech window... 详细信息
来源: 评论
On reducing the buzz in LPC synthesis
On reducing the buzz in LPC synthesis
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International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
作者: M. Sambur A. Rosenberg L. Rabiner C. McGonegal Bell Laboratories Murray Hill NJ USA
A method for reducing the characteristic buzz from LPC synthetic speech is presented. The method consists of the use of an non-impulse source for exciting the LPC synthesizer during voiced sounds. One novel feature is... 详细信息
来源: 评论
The application of a functional perceptual model of speech to variable-rate LPC systems
The application of a functional perceptual model of speech t...
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International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
作者: R. Viswanathan J. Makhoul R. Wicke Bolt Beranek and Newman 슠Inc. Cambridge MA USA
来源: 评论