In this paper, we describe a phonetic vocoder based on the concatenation of syllable-units which represent speech waves by extremely low rate (100 bits/s) using a speech recognition tequnique. We take syllables into consideration as the unit of recognition/synthesis, because a syllable contains the coarticulation effect between a consonant and a vowel. Speech waves are transformed into a sequence of frames, each of which consists of LPC cepstrum, PARCOR coefficients, pitch and power. After the O(n) DP matching with 500 reference patterns, the input speech is transformed into a sequence of Japanese syllables. The information o
This paper presents a 1.2 kb/s mixed LPC vocoder based on multiband excitation (MBE) model. The voco...
Publication in the conference proceedings of EUSIPCO, Lausanne, Switzerland, 200
We propose a new excitation model for transitional speech to re-duce the distortion due to the tradi...
The paper presents a very low bit rate phonetic vocoder based on speech recognition and synthesized ...
Current HMM-based low bit rate speech coding systems work with phonetic vocoders. Pitch contour codi...
The goal of the work described in this paper is to develop a very low bit rate vocoding scheme. The ...
Abstract—Current very low bit rate speech coders are, due to complexity limitations, designed to wor...
When using extracted speech feature coefficients for speech synthesis, quantization is considered a ...
Linear Predictive Coding (LPC) has been used to compress and encode speech signals for digital trans...
Among the speech coding techniques, phonetic coding is the one able to reach the lowest bit rates. T...
In this paper, a very low bit speech coder at 1.2 kbps is newly proposed. Like the LPC vocoder, it o...
Robust low bit rate speech coders are essential in commercial and military communication systems. Th...
Voiced speech is characterized by a high level of periodicity. In order to encode voiced speech with...
A vocoder technique is described in which speech signals are represented by their short-time phase a...
Since the very early years of this century, communication systems have been subject to unparalleled ...
This paper presents a 1.2 kb/s mixed LPC vocoder based on multiband excitation (MBE) model. The voco...
Publication in the conference proceedings of EUSIPCO, Lausanne, Switzerland, 200
We propose a new excitation model for transitional speech to re-duce the distortion due to the tradi...
The paper presents a very low bit rate phonetic vocoder based on speech recognition and synthesized ...
Current HMM-based low bit rate speech coding systems work with phonetic vocoders. Pitch contour codi...
The goal of the work described in this paper is to develop a very low bit rate vocoding scheme. The ...
Abstract—Current very low bit rate speech coders are, due to complexity limitations, designed to wor...
When using extracted speech feature coefficients for speech synthesis, quantization is considered a ...
Linear Predictive Coding (LPC) has been used to compress and encode speech signals for digital trans...
Among the speech coding techniques, phonetic coding is the one able to reach the lowest bit rates. T...
In this paper, a very low bit speech coder at 1.2 kbps is newly proposed. Like the LPC vocoder, it o...
Robust low bit rate speech coders are essential in commercial and military communication systems. Th...
Voiced speech is characterized by a high level of periodicity. In order to encode voiced speech with...
A vocoder technique is described in which speech signals are represented by their short-time phase a...
Since the very early years of this century, communication systems have been subject to unparalleled ...
This paper presents a 1.2 kb/s mixed LPC vocoder based on multiband excitation (MBE) model. The voco...
Publication in the conference proceedings of EUSIPCO, Lausanne, Switzerland, 200
We propose a new excitation model for transitional speech to re-duce the distortion due to the tradi...