Title A phonetic Vocoder for Very-Low-Rate Speech Coding
نویسندگان
چکیده
منابع مشابه
Syllable-based pitch encoding for low bit rate speech coding with recognition/synthesis architecture
Current HMM-based low bit rate speech coding systems work with phonetic vocoders. Pitch contour coding (on frame or phoneme level) is usually fairly orthogonal to other speech coding parameters. We make an assumption in our work that the speech signal contains supra-segmental cues. Hence, we present encoding of the pitch on the syllable level, used in the framework of a recognition/synthesis sp...
متن کاملSegmental vocoder-going beyond the phonetic approach
In our paper, the problem of very low bit rate segmental speech coding is addressed. The basic units are found automatically in the training database using temporal decomposition, vector quantization and multigrams. They are modelled by HMMs. The coding is based on recognition and synthesis. In single speaker tests, we obtained intelligible and naturally sounding speech at mean rate of 211.2 b/...
متن کاملUsing FFI Interpolator and VQ Quantization for Designing of High Quality 1200 BPS Speech Vocoder
Storaging or transmission of speech signals at very low bit rate is a hot area in the field of speech processing. We used stochastic inter-frame interpolators and vector quantization (VQ) as a new method for developing a high quality 1200 BPS speech vocoder. The objective and subjecgtive test results show that performance of the new vocoder is compairable with 4800 BPS standard vocoders (as CELP).
متن کاملA lOObit/s speech coding using a speech recognition technique
ABSTRUCT In this paper, we describe a phonetic vocoder based on sy!lable-units which represents spe ec h waves by extremeiy low rate (100 bits /s) using a speech recognition tequnique. We take syllables into consideration as the unit of r ecognition I synth esis. Speech waves are transformed into a sequence of frames, each of which consists of LPC cepstrum, PARGOR coefficients, pitch and power....
متن کاملUsing FFI Interpolator and VQ Quantization for Designing of High Quality 1200 BPS Speech Vocoder
Storaging or transmission of speech signals at very low bit rate is a hot area in the field of speech processing. We used stochastic inter-frame interpolators and vector quantization (VQ) as a new method for developing a high quality 1200 BPS speech vocoder. The objective and subjecgtive test results show that performance of the new vocoder is compairable with 4800 BPS standard vocoders (as CELP).
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تاریخ انتشار 2016