OBD:SNDD/wav
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Main Page >> Oni Binary Data >> File Types >> SNDD File >> Wav Header
Sound Data
Oni uses in the PC version the ADPCM wav format. The header of this format is explained below.
| Hex | Translation | Meaning |
| Below follows the basic wav format header. | ||
| 08 00 00 00 | 8 | size of the following complete header part in bytes; (it seems that Oni uses only the following first 8 bytes, though the complete size of the header is 50 bytes) |
| 02 00 | 2 | format ID (2 = ADPCM format) |
| 01 00 | 1 | number of channels (1 = mono) |
| 22 56 00 00 | 22050 | samples per seconds; (also known as "frequency" or "sample rate") |
| 93 2B 00 00 | 11155 |
|
| 00 02 | 512 | block alignment; used for buffer estimation; (the block alignment of 22050 samples per second is always 512 bytes) |
| 04 00 | 4 | bits per sample |
| Below follows the special extended ADPCM wav format header. | ||
| 20 00 | 32 | size of the following extended information part in bytes |
| F4 03 | 1012 |
|
| 07 00 | 7 | number of the following coefficient sets |
| 00 01 00 00 | 256, 0 |
The 14 coefficients are standard and are used by the wave to play. The seven coefficient sets are preset. They must appear in this order. |
| 00 02 00 FF | 512, -256 | |
| 00 00 00 00 | 0, 0 | |
| C0 00 40 00 | 192, 64 | |
| F0 00 00 00 | 240, 0 | |
|
CC 01 30 FF |
460, -208 | |
| 88 01 15 FF | 392, -232 | |
- Usual header
- sample rate 22.05 kHz
- average rate 11155
- block alignment 512
- 1012 samples per block
| 0x00: | °° | °° | °° | °° | °° | °° | °° | °° | 08 | 00 | 00 | 00 | 02 | 00 | 01 | 00 | °°°°°°°°°°°°°°°° |
| 0x10: | 22 | 56 | 00 | 00 | 93 | 2B | 00 | 00 | 00 | 02 | 04 | 00 | 20 | 00 | F4 | 03 | °°°°°°°°°°°°°°°° |
| 0x20: | 07 | 00 | 00 | 01 | 00 | 00 | 00 | 02 | 00 | FF | 00 | 00 | 00 | 00 | C0 | 00 | °°°°°°°°°°°°°°°° |
| 0x30: | 40 | 00 | F0 | 00 | 00 | 00 | CC | 01 | 30 | FF | 88 | 01 | 18 | FF | 00 | °° | °°°°°°°°°°°°°°°° |
- 44 kHz header
- sample rate 44.1 kHz
- average rate 22179
- block alignment 1024
- 2036 samples per block
| 0x00: | °° | °° | °° | °° | °° | °° | °° | °° | 08 | 00 | 00 | 00 | 02 | 00 | 01 | 00 | °°°°°°°°°°°°°°°° |
| 0x10: | 22 | 56 | 00 | 00 | 93 | 2B | 00 | 00 | 00 | 02 | 04 | 00 | 20 | 00 | F4 | 03 | °°°°°°°°°°°°°°°° |
| 0x20: | 07 | 00 | 00 | 01 | 00 | 00 | 00 | 02 | 00 | FF | 00 | 00 | 00 | 00 | C0 | 00 | °°°°°°°°°°°°°°°° |
| 0x30: | 40 | 00 | F0 | 00 | 00 | 00 | CC | 01 | 30 | FF | 88 | 01 | 18 | FF | 00 | °° | °°°°°°°°°°°°°°°° |
Main Page >> Oni Binary Data >> File Types >> SNDD File >> Wav Header