Data simplifying and merging method for a voice decoding memory system

[0023]FIG. 6 is a flowchart of the data simplifying and merging method for a voice decoding memory system in accordance with the invention. The voice decoding memory system includes a non-volatile memory. As shown in FIG. 7, the non-volatile memory has plural 2N-bit words 700 to store plural encoded voice data 701, plural step sizes 702 and a table 703. For illustrative purpose, the word 700 has a length of 8 bits (N=4). Namely, each word 700 is defined as a byte 700. The encoded voice data 701 is read sequentially by a processor 800 for decoding.

[0024] The length of each encoded voice data 701 is a nibble. Namely, each voice data 701 has N=4 bits. A byte 700 has odd and even voice data O[3:0] and E[3:0]. The odd voice data O[3:0] and the even voice data E[3:0] are interlaced to form a byte of E3O3 . . . E0O0, which is stored in a byte 700 of the non-volatile memory. Each step size 702 has four effective bits S[3:0] to be arranged in every other bit as an 8-bit form of S30 . . . S00,