OBD:SNDD/wav
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Oni PC sound data uses an ADPCMWAVEFORMAT header.
| Offset | Type | Raw Hex | Value | Description |
|---|---|---|---|---|
| 0x0C | int16 | 02 00 | 2 | format ID (2 = ADPCM format) |
| 0x0E | int16 | 01 00 | 1 | number of channels (1 = mono) |
| 0x10 | int32 | 22 56 00 00 | 22050 | samples per seconds; (also known as "frequency" or "sample rate") |
| 0x14 | int32 | 93 2B 00 00 | 11155 | File:Sndd hd1.gif |
| 0x18 | int16 | 00 02 | 512 | block alignment; used for buffer estimation; (the block alignment of 22050 samples per second is
always 512 bytes) |
| 0x1A | int16 | 04 00 | 4 | bits per sample |
| Special extended ADPCM wav format header (black outline) | ||||
| 0x1C | int16 | 20 00 | 32 | size of the following extended information part in bytes |
| 0x1E | int16 | F4 03 | 1012 | File:Sndd hd2.gif
N.B. For stereo, the -7 in the numerator is replaced with a -14. geyser (talk) |
| 0x20 | int16 | 07 00 | 7 | number of the following coefficient sets |
| 0x22 | int16-16 | 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. |
| 0x26 | int16-16 | 00 02 00 FF | 512, -256 | |
| 0x2A | int16-16 | 00 00 00 00 | 0, 0 | |
| 0x2E | int16-16 | C0 00 40 00 | 192, 64 | |
| 0x32 | int16-16 | F0 00 00 00 | 240, 0 | |
| 0x36 | int16-16 | CC 01 30 FF | 460, -208 | |
| 0x3A | int16-16 | 88 01 18 FF | 392, -232 | |
Below are the three types of headers occurring in Oni
- 22.05 kHz mono
- 1 channel
- sample rate 22050 Hz
- average rate 11155, truncated from ~11155.7312253 = 22050*512/1012
- block alignment 512
- 4 bits per sample
- 1012 samples per block = 2 + (512 - 7)*8/4/1
- standard coefficient table
| 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 | °° | °° | °°°°°°°°°°°°°°°° |
- 22.05 kHz stereo
- 2 cnannels
- sample rate 22050 Hz
- average rate 22311, truncated from ~22311.4624506 = 22050*1024/1012
- block alignment 1024
- 4 bits per sample
- 1012 samples per block = 2 + (1024 - 2*7)*8/4/2
- standard coefficient table
| 0x00: | °° | °° | °° | °° | °° | °° | °° | °° | 08 | 00 | 00 | 00 | 02 | 00 | 02 | 00 | °°°°°°°°°°°°°°°° |
| 0x10: | 22 | 56 | 00 | 00 | 27 | 57 | 00 | 00 | 00 | 04 | 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 | °° | °° | °°°°°°°°°°°°°°°° |
- 44 kHz mono
- 1 channel
- sample rate 44100 kHz
- average rate 22179, truncated from ~22179.9607073 = 44100*1024/2036
- block alignment 1024
- 4 bits per sample
- 2036 samples per block = 2 + (1024 - 7)*8/4/1
- standard coefficient table
| 0x00: | °° | °° | °° | °° | °° | °° | °° | °° | 08 | 00 | 00 | 00 | 02 | 00 | 01 | 00 | °°°°°°°°°°°°°°°° |
| 0x10: | 44 | AC | 00 | 00 | A3 | 56 | 00 | 00 | 00 | 04 | 04 | 00 | 20 | 00 | F4 | 07 | °°°°°°°°°°°°°°°° |
| 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 | °° | °° | °°°°°°°°°°°°°°°° |
List of the (relatively rare) 44 kHz sounds and their OSBDs (without the .aif suffix):
- SNDDap_hit_shld (1 sound, referenced in OSBDap_hit_shld.grp, present in level0)
- SNDDzap01 to SNDDzap45 (45 sounds, OSBDelec_detail.grp, in level9 and level10)
- SNDDzap03, SNDDzap04, SNDDzap07, SNDDzap20, SNDDzap26, SNDDzap32 and SNDDzap40
- (7 sounds, OSBDelecfire_detail.grp, in level3, level4, level6, level8, level9, level10 and level18)