Efficient quantization of LSF parameters based on temporal decomposition
نویسندگان
چکیده
In this paper, we present a restricted temporal decomposition method for LSF parameters. The event vectors estimated by this method preserve the ordering property of LSF parameters so that they can be quantized efficiently. Experimental results show that interpolated LSF parameters can be quantized transparently at the rate of 753 bps. We also design a LPC vocoder at 996 bps as an application of the proposed method. According to a listening test, the reconstructed speech of our vocoder has reasonable quality compared with 2400 bps LPC10e.
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