OBD:SNDD
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There are 2 different formats used by the SNDD files. Below is the dat file part used in the PC retail version.
| Offset | Type | Raw Hex | Value | Description |
|---|---|---|---|---|
| 0x00 | res_id | 01 D7 08 00 | 2263 | 02263-comguy_dth2.aif.SNDD |
| 0x04 | lev_id | 01 00 00 06 | 3 | level 3 |
| 0x08 | block[54] | wav header | ||
| 0x3E | int16 | 37 00 | 55 | duration in 1/60 seconds |
| 0x40 | int32 | 56 28 00 00 | 10326 | size of the part in the raw file in bytes |
| 0x44 | offset | 20 10 59 00 | 00 59 10 20 | at this position starts the part in the raw file |
| 0x48 | char[24] | AD DE | dead | unused |
The Mac version and the PC demo version use a simpler format and it appears that there is no support for different sample rates (all sounds are sampled at 22050 Hz).
| Offset | Type | Raw Hex | Value | Description |
|---|---|---|---|---|
| 0x00 | res_id | 01 D6 08 00 | 2262 | 02262-comguy_dth2.aif.SNDD |
| 0x04 | lev_id | 01 00 00 06 | 3 | level 3 |
| 0x08 | int32 | 01 00 00 00 | 1 | "number of channels" (can be 1 for 1 channel or 3 for 2 channels) |
| 0x0C | int32 | 37 00 00 00 | 55 | duration in 1/60 seconds |
| 0x10 | int32 | 5E 2A 00 00 | 10846 | size of the part in the raw file in bytes |
| 0x14 | offset | 00 B1 01 00 | 00 01 B1 00 | at this position starts the part in the raw file |
| 0x18 | char[8] | AD DE | dead | unused |
The raw data part of a SNDD file contains the actual audio samples without any other headers. To create a wav/aif file one needs to write a file header like below and then write the contents of the raw data part.
WAV files
Write "RIFF", add the size of the part in the raw file + 70 byte, write "WAVE", write "fmt ", add the wav header + change it's first byte from 8 to 32, write "data", add the size of the part in the raw file, add the raw file data and save it as a wav file.
| Offset | Type | Raw Hex | Value | Description |
|---|---|---|---|---|
| Complete ADPCM wav format header (black outline) | ||||
| 0x00 | char[4] | 52 49 46 46 | RIFF | identification that this file uses the IBM/Microsoft RIFF standard |
| 0x04 | int32 | 9C 28 00 00 | 10396 | size of the wav file from the the green coloured field to the end in bytes (= size of the part in the raw file + 70 bytes) |
| 0x08 | char[4] | 57 41 56 45 | WAVE | identification that this file is a WAVE file |
| 0x0C | char[4] | 66 6D 74 20 | fmt | identification that the wav format header follows |
| 0x10 | block[54] | wav header; note that it starts with a 32 and not with an 8 | ||
| 0x46 | char[4] | 64 61 74 61 | data | identification that the wav data follows |
| 0x4A | int32 | 56 28 00 00 | 10326 | size of the following wav data in bytes (= size of the part in the raw file) |
AIF files
Write "FORM", add the size of the part in the raw file + 50 bytes, write "AIFC", write "COMM ", add the aif header + calculate its sample rate, write "SSND", add the size of the part in the raw file + 8 bytes, add 8 zero bytes, add the raw file data and save it as an aif file.
| Offset | Type | Raw Hex | Value | Description |
|---|---|---|---|---|
| Complete aif format header (black outline) - Note: You have to read the Raw Hex content from left to right | ||||
| 0x00 | char[4] | 46 4F 52 4D | FORM | identification, that this file uses the "EA IFF 85" standard |
| 0x04 | int32 | 00 00 2A 90 | 10896 | size of the file from the the green coloured field to the end in bytes (= size of the part in the raw file + 50 bytes) |
| 0x08 | char[4] | 41 49 46 43 | AIFC | identification, that this file is a AIFC file (compressed aif file) |
| 0x0C | char[4] | 43 4F 4D 4D | COMM | identification that the aif format header follows |
| 0x10 | block[26] | aif header | ||
| 0x2A | char[4] | 53 53 4E 44 | SSND | identification that the aif data follows |
| 0x2E | int32 | 00 00 2A 66 | 10854 | size of the file from the the light blue coloured field to the end (= size of the part in the raw file + 8 bytes) |
| 0x32 | int32 | 00 00 00 00 | 0 | offset; determines where the first sample in the data starts; in Oni it's always zero |
| 0x36 | int32 | 00 00 00 00 | 0 | block size; used in conjunction with offset for block-aligning data; in Oni it's always zero |
| ONI BINARY DATA |
|---|
| QTNA << Other file types >> StNA |
| SNDD : Sound Data |
| Generic file |