Audio quantization coding and decoding device and method thereof

An audio quantization coding method, comprising:

• reading a plurality of first voice data and performing a plurality of times of zero-crossing condition checking to generate a plurality of first sign bit in sequence, and splitting the plurality of first voice data into a plurality of frames according to signal polarity so that the plurality of first voice data within the same frame have the same sign bit;
• receiving the plurality of first voice data and the first sign bit corresponding to each frame, calculating the total quantization error of all the first voice data corresponding to the received frame, quantizing the plurality of first voice data corresponding to the frame received each time to generate a plurality of first numeric data, and correspondingly generating a first frame header according to a frame quantization result;
• and
• receiving the plurality of first numeric data, the first sign bit, and the first frame header generated corresponding to each frame, and performing coding to form a first encoded data stream,
• wherein the above coding steps are performed by an audio quantization coding device in real time.

An audio quantization decoding method, comprising:

• reading a second encoded data stream and performing decoding to generate a plurality of second decoded data frames, wherein each second decoded data frame comprises:
• a second frame header, a second sign bit, and a plurality of second numeric data, wherein the plurality of second numeric data within the same second decoded data frame have the same sign bit;
• and
• receiving the second decoded data stream, and dequantizing the plurality of second numeric data according to values of the second frame header and the second sign bit to generate a plurality of second voice data in sequence, wherein the plurality of second voice data are generated by an audio quantization decoding device in real time.

An audio quantization coding and decoding method, comprising:

• reading a plurality of first voice data and performing a plurality of times of zero-crossing condition checking to generate a plurality of first sign bit in sequence, and splitting the first voice data into a plurality of frames according to signal polarity so that the plurality of first voice data within the same frame have the same sign bit;
• receiving the plurality of first voice data and the first sign bit corresponding to each frame, calculating the total quantization error of all the first voice data corresponding to the received frame, quantizing the plurality of first voice data corresponding to the frame received each time to generate a plurality of first numeric data, and correspondingly generating a first frame header according to a frame quantization result;
• receiving the plurality of first numeric data, the first sign bit, and the first frame header generated by the quantizer for each frame, and performing coding to form a first encoded data stream;
• reading a second encoded data stream and performing decoding to generate a plurality of second decoded data streams, wherein each second decoded data stream comprises a second frame header, a second sign bit, and a plurality of second numeric data;
• and
• receiving the plurality of second decoded data stream, and dequantizing the plurality of second numeric data according to values of the second frame header and the second sign bit to generate a plurality of second voice data in sequence,
• wherein the plurality of second voice data are generated by an audio quantization coding and decoding device in real time.