OBD:SNDD: Difference between revisions

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


 
There are 2 different formats used by the SNDD files. Below is the dat file part used in the PC retail version.
----
<center>'''PC Sound Data'''&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[[OBD:SNDD_Mac|Mac Sound Data]]</center>
----
 
 
Below is the dat file part of the SNDD file.




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So, how to create playable wav files? Look at the pic below. It shows the beginning of the comguy_dth2.wav sound.
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).
 
 
[[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 }}
|}
 
 
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.




[[image:sndd_wav.gif]]
[[image:sndd_wav.gif]]


{{Table}}
{{Table}}
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Just 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.
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.
 
 
[[image:sndm_aif.gif]]
 
 
{{Table}}
{{OBDth}}
{{OBDtrBK|1=Complete aif format header (black outline) - Note: You have to read the Raw Hex content from left to right}}
{{OBDtr| 0x00 | char[4]  |FF0000| 46 4F 52 4D | FORM      | identification, that this file uses the "EA IFF 85" standard }}
{{OBDtr| 0x04 | int32    |FFFF00| 00 00 2A 90 | 10896    | size of the file from the the green coloured field to the end in bytes (<nowiki>=</nowiki> size of the part in the raw file + 50 bytes) }}
{{OBDtr| 0x08 | char[4]  |00FF00| 41 49 46 43 | AIFC      | identification, that this file is a AIFC file (compressed aif file) }}
{{OBDtr| 0x0C | char[4]  |00FFFF| 43 4F 4D 4D | COMM      | identification that the aif format header follows }}
{{OBDtr| 0x10 | block[26]|FFC8C8| &nbsp;      | &nbsp;    | [[OBD:SNDD/aif|aif header]] }}
{{OBDtr| 0x2A | char[4]  |FFFFC8| 53 53 4E 44 | SSND      | identification that the aif data follows }}
{{OBDtr| 0x2E | int32    |C8FFC8| 00 00 2A 66 | 10854    | size of the file from the the light blue coloured field to the end (<nowiki>=</nowiki> size of the part in the raw file + 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}}
{{OBD_File_Footer | type=SNDD | prev=QTNA | next=StNA | name=Sound Data | family=Generic}}

Revision as of 20:12, 16 November 2007

ONI BINARY DATA
QTNA << Other file types >> StNA
SNDD : Sound Data
switch to XML:SNDD page
Overview @ Oni Stuff
OBD.png

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


Sndd all.gif


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).


Sndd alm.gif


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.


Sndd wav.gif

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.


Sndm aif.gif


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
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