View source for OBD:SNDD

{{OBD_File_Header | type=SNDD | prev=QTNA | next=StNA | name=Sound Data | family=Generic | align=center}}


=dat=
There are 2 different formats used by the SNDD files.
==PC retail==
Below is the dat file part used in the PC retail version.

[[image:sndd_all.gif]]


{{Table}}
{{OBDth}}
{{OBDtr| 0x00 | res_id   |FF0000| 01 D7 08 00 | 2263      | 02263-comguy_dth2.aif.SNDD }}
{{OBDtr| 0x04 | lev_id   |FFFF00| 01 00 00 06 | 3         | level 3 }}
{{OBDtr| 0x08 | int32    |FFC8C8| 08 00 00 00 | 8         | flags
:1 - 
:2 - 
:4 - 
:8 - ADPCM compressed }}
{{OBDtr| 0x08 | block[50]|FFC8C8| &nbsp;      | &nbsp;    | [[OBD:SNDD/wav|wav header]] }}
{{OBDtr| 0x3E | int16    |FFFFC8| 37 00       | 55        | duration in 1/60 seconds }}
{{OBDtr| 0x40 | int32    |C8FFC8| 56 28 00 00 | 10326     | size of the part in the raw file in bytes }}
{{OBDtr| 0x44 | offset   |C8FFFF| 20 10 59 00 |00 59 10 20| at this position starts the part in the raw file }}
{{OBDtr| 0x48 | char[24] |FFC8FF| AD DE       | dead      | unused }}
|}


----
==PC demo and Mac==
The Mac version and the PC demo version use a simpler format.
It appears that there is no support for different sample rates (all sounds are sampled at 22050 Hz).


[[image:sndd_alm.gif]]


{{Table}}
{{OBDth}}
{{OBDtr| 0x00 | res_id   |FF0000| 01 D6 08 00 | 2262      | 02262-comguy_dth2.aif.SNDD }}
{{OBDtr| 0x04 | lev_id   |FFFF00| 01 00 00 06 | 3         | level 3 }}
{{OBDtr| 0x08 | int32    |FFC8C8| 01 00 00 00 | 1         | "number of channels" (can be 1 for 1 channel or 3 for 2 channels) }}
{{OBDtr| 0x0C | int32    |FFFFC8| 37 00 00 00 | 55        | duration in 1/60 seconds }}
{{OBDtr| 0x10 | int32    |C8FFC8| 5E 2A 00 00 | 10846     | size of the part in the raw file in bytes }}
{{OBDtr| 0x14 | offset   |C8FFFF| 00 B1 01 00 |00 01 B1 00| at this position starts the part in the raw file }}
{{OBDtr| 0x18 | char[8]  |FFC8FF| AD DE       | dead      | unused }}
|}


----
----
=raw=
The raw data part of a SNDD file contains the actual audio samples without any other headers.
==export and import==
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 bytes
*write "WAVE"
*write "fmt "
*add the wav header + change its first byte from 8 to 32
*write "data"
*add the size of the part in the raw file
*add the raw file data
*save it as a wav file.

[[image:sndd_wav.gif]]

{{Table}}
{{OBDth}}
{{OBDtrBK|1=Complete ADPCM wav format header (black outline)}}
{{OBDtr| 0x00 | char[4]  |FF0000| 52 49 46 46 | RIFF      | identifier for the "IBM/Microsoft RIFF" standard }}
{{OBDtr| 0x04 | int32    |FFFF00| 9C 28 00 00 | 10396     | size of the file from 0x08 to the end (<nowiki>=</nowiki> size of the .raw part + 70 bytes) }}
{{OBDtr| 0x08 | char[4]  |00FF00| 57 41 56 45 | WAVE      | identifier for the "WAVE" format }}
{{OBDtr| 0x0C | char[4]  |00FFFF| 66 6D 74 20 | fmt       | identifier announcing the following wav format header }}
{{OBDtr| 0x10 | block[54]|FFC8C8| &nbsp;      | &nbsp;    | [[OBD:SNDD/wav|wav header]]; note that it starts with a 32 and not with an 8 }}
{{OBDtr| 0x46 | char[4]  |FFFFC8| 64 61 74 61 | data      | identifier announcing the following wav data }}
{{OBDtr| 0x4A | int32    |C8FFC8| 56 28 00 00 | 10326     | size of the following wav data in bytes (<nowiki>=</nowiki> size of the .raw part) }}
|}


----
===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 (always 22)
*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.
Note the [[wikipedia:Big Endian|Big Endian]] order

[[image:sndm_aif.gif]]


{{Table}}
{{OBDth}}
{{OBDtrBK|Complete aif format header (black outline) }}
{{OBDtr| 0x00 | char[4]  |FF0000| 46 4F 52 4D | FORM      | identifier for the "EA IFF 85" standard }}
{{OBDtr| 0x04 | int32    |FFFF00| 00 00 2A 90 | 10896     | size of the file from 0x08 to the end (<nowiki>=</nowiki> size of the .raw part + 50 bytes) }}
{{OBDtr| 0x08 | char[4]  |00FF00| 41 49 46 43 | AIFC      | identifier for the "AIFC" format (compressed aif file) }}
{{OBDtr| 0x0C | char[4]  |00FFFF| 43 4F 4D 4D | COMM      | identifier announcing the following aif format header }}
{{OBDtr| 0x10 | block[26]|FFC8C8| &nbsp;      | &nbsp;    | [[OBD:SNDD/aif|aif header]] }}
{{OBDtr| 0x2A | char[4]  |FFFFC8| 53 53 4E 44 | SSND      | identifier announcing the following aif data }}
{{OBDtr| 0x2E | int32    |C8FFC8| 00 00 2A 66 | 10854     | size of the file from 0x32 to the end (<nowiki>=</nowiki> size of the .raw part + 8 bytes) }}
{{OBDtr| 0x32 | int32    |C8FFFF| 00 00 00 00 | 0         | offset; determines where the first sample in the data starts; in Oni it's always zero }}
{{OBDtr| 0x36 | int32    |FFC8FF| 00 00 00 00 | 0         | block size; used in conjunction with offset for block-aligning data; in Oni it's always zero }}
|}


{{OBD_File_Footer | type=SNDD | prev=QTNA | next=StNA | name=Sound Data | family=Generic}}