Super frame track parameter vector quantizing method

[0029] The method for vector quantization of superframe channel parameters proposed by the present invention is further described as follows in conjunction with accompanying drawings and embodiments:

[0030] The method process of the present invention is as figure 2 shown, including the following steps:

[0031] (1) Framing the input voice signal sample points in time order, forming a superframe with several consecutive frames;

[0032] (2) extracting channel A parameter to each frame in the current superframe;

[0033] (3) converting each frame channel A parameter in the current superframe into a line spectrum pair parameter;

[0034] (4) Extract unvoiced sound parameters for each frame in the current superframe;

[0035] (5) carry out vector quantization to the unvoiced sound parameter of current superframe, obtain the unvoiced sound parameter quantization value after current superframe quantization;

[0036] (6) Determine the current superframe mode according to the u...