SWAV Format
- supports only mono sample
| Offset | Size | Description |
|---|---|---|
| 00h | 4 | Group ID "SWAV" |
| 04h | 2 | Unknown (always FFh FEh) |
| 06h | 2 | Unknown (always 00h 01h at least in SWAV) |
| 08h | 4 | Size |
| 0Ch | 2 | Header Size (always 10h) |
| 0Eh | 2 | Number of Chunks (always 1) |
| 10h | 4 | Chunk ID "DATA" |
| 14h | 4 | Chunk Size |
| 18h | 1 | Wave Type (0:PCM8/1:PCM16/2:(IMA-)ADPCM) |
| 19h | 1 | Loop Flag (bool) |
| 1Ah | 2 | Sampling Rate |
| 1Ch | 2 | Time (1.6756991e7 *1 / rate) |
| 1Eh | 2 | Loop Offset (expressed in words (32-bit)) |
| 20h | 4 | Non Loop Length (expressed in words (32-bit)) |
| 24h | n | Wave Data |
*1:ARM7_CLOCK:33.513982MHz / 2
