WASET
	@article{(Open Science Index):https://publications.waset.org/pdf/5166,
	  title     = {A High Quality Speech Coder at 600 bps},
	  author    = {Yong Zhang and  Ruimin Hu},
	  country	= {},
	  institution	= {},
	  abstract     = {This paper presents a vocoder to obtain high quality synthetic speech at 600 bps. To reduce the bit rate, the algorithm is based on a sinusoidally excited linear prediction model which extracts few coding parameters, and three consecutive frames are grouped into a superframe and jointly vector quantization is used to obtain high coding efficiency. The inter-frame redundancy is exploited with distinct quantization schemes for different unvoiced/voiced frame combinations in the superframe. Experimental results show that the quality of the proposed coder is better than that of 2.4kbps LPC10e and achieves approximately the same as that of 2.4kbps MELP and with high robustness.
},
	    journal   = {International Journal of Electronics and Communication Engineering},
	  volume    = {3},
	  number    = {11},
	  year      = {2009},
	  pages     = {2044 - 2049},
	  ee        = {https://publications.waset.org/pdf/5166},
	  url   	= {https://publications.waset.org/vol/35},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 35, 2009},
	}