求助，AT3文件头的修改

lbofficetpv · 发表于 2010-3-6 04:47

GOOGLE上找资料无果。拿WINHEX对比了一晚上，只知道红色部分是数据大小，绿色部分应该是码率，其他部分应该如何修改。现在已经从转好的OMA文件里提出了数据部分，如何修改文件头能够用在提出的数据上？

52 49 46 46 CC 8D 33 00 57 41 56 45 66 6D 74 20
34 00 00 00 FE FF 02 00 44 AC 00 00 1B 2F 00 00
30 02 00 00 22 00 00 08 03 00 00 00 BF AA 23 E9
58 CB 71 44 A1 19 FF FA 01 E4 CE 62 01 00 28 45
00 00 00 00 00 00 00 00 66 61 63 74 08 00 00 00
09 7A BC 00 87 0C 00 00 73 6D 70 6C 3C 00 00 00
00 00 00 00 00 00 00 00 94 58 00 00 3C 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00
18 00 00 00 00 00 00 00 00 00 00 00 04 90 5E 00
8F 86 BC 00 00 00 00 00 00 00 00 00 64 61 74 61
30 8D 33 00

lbofficetpv · 发表于 2010-3-6 12:46

自己顶一下...

lbofficetpv · 发表于 2010-3-7 00:10

睡前顶下，这么多做降码的没人肯说下怎么弄AT3嘛？

bsgb666 · 发表于 2010-3-7 17:08

0x2F1B=12059
12059*8=96472=96kbps
0x2F1B*0x800/0xAC44=0x230
0x230/8-1=0x45

FTSTephen · 发表于 2010-3-7 17:35

LZ我看好你~~~~