Sound Bank: Difference between revisions
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An audio container format developed by Electronic Arts and used |
An audio container format developed by Electronic Arts and used extensively by various EA-published games released in the 2000s, including Burnout's PlayStation Portable releases. This version uses the extension <code>.SDT</code>. |
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= Layout = |
= Layout = |
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== SDT == |
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{|class="wikitable" |
{|class="wikitable" |
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! Notes |
! Notes |
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| 0x00 || File magic || uint || <code>0x424E4B6C</code> (<code>BNKl</code>) || |
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! colspan="5" | Header |
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| 0x04 || Version number || uint16 || <tt>0x05<tt> || |
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| 0x06 || Number of sounds in archive || uint16 || || |
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| 0x08 || Header size (bytes) || uint || || |
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| 0x0C || Archive size (bytes) || uint || || |
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| 0x10 || Padding || word || || |
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| 0x14 || PT header offsets || PT Header*[] || || Each pointer uses an offset relative to its start position. |
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! colspan="5" | PT Header Array |
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| 0x14 || Array size in bytes || UInt32 || || |
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| 0x18 || PT header offsets || [[Sound_Data_Table#PT_Header_(WIP)|PT Header]]*[] || |
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== PT Header |
=== PT Header === |
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SDT contains metadata headers, each <tt>0x20</tt> in length, for each sound in the archive. The metadata in question consists of a given sound's sample rate, compression, start offset, etc. |
SDT contains metadata headers, each <tt>0x20</tt> in length, for each sound in the archive. The metadata in question consists of a given sound's sample rate, compression, start offset, etc. |
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! Notes |
! Notes |
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| 0x00 || |
| 0x00 || ID || int16 || <code>0x5054</code> (<code>PT</code>) || |
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| 0x02 || Platform identifier || enum || 0x0A || <tt>0x00</tt> = PC, <tt>0x03</tt> = Macintosh, <tt>0x05</tt> = PlayStation 2, <tt>0x06</tt> = GameCube,<br><tt>0x07</tt> = Xbox, <tt>0x09</tt> = Xenon (Xbox 360), <tt>0x0A</tt> = PSP |
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| 0x03 || Padding || byte || || |
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| 0x04 || Patch substream || Patch Substream || |
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=== Patch Substream (WIP) === |
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This structure contains all of a given sound's actual metadata. |
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{|class="wikitable" |
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! Offset |
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! Name |
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! Type |
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! Value |
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! Notes |
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| 0x00 || Compression version || int8 || || |
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| 0x02 || Number of audio channels || int8 || || 1 = mono, 2 = stereo |
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| 0x03 || Compression type || int8 || || |
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| 0x04 || Stream sample rate (Hz) || int8 || || |
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| 0x06 || Stream sample count || int8 || || |
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| 0x12 || Loop offset || int8 || || |
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| 0x13 || Loop length || int8 || || |
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| 0x14 || Audio stream offset || word* || || Uses big-endian byte order; points to the exact location of the stream in the archive. |
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