wave file format
offset | size(byte) | field |
0 | 4 | "RIFF" or "LIST" |
4 | 4 | file size (data size + 40) |
8 | 4 | "WAVE" |
12 | 4 | "fmr " |
16 | 4 | 16 |
20 | 2 | WAVE_FORMAT_PCM |
22 | 2 | 1 = mono, 2 = strereo |
24 | 4 | sample rate (11kHz: 11025, 22kHz: 22025, 44kHz: 44100) |
28 | 4 | bytes per sec sample rate * channel * (bits per sample/8) |
30 | 2 | block align channel * (bits per sample/8) |
32 | 2 | bits per sample (8, 16, ...) |
36 | 4 | "data" |
40 | 4 | data size |
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