AST (File Format) - Revision history

SY24: added volume, last and penult

2026-04-28T10:35:30Z

added volume, last and penult

← Older revision		Revision as of 10:35, 28 April 2026
Line 8:		Line 8:
	! Offset !! Type !! Description		! Offset !! Type !! Description
	\|-		\|-
	\| 0x00 \|\| String \|\| File magic. '''STRM''' in ASCII.		\| 0x00 \|\| String \|\| File magic. '''STRM''' in ASCII
	\|-		\|-
	\| 0x04 \|\| UInt32 \|\| Size of all ~~sound~~ blocks. ''File ~~Size~~ - ~~Header Length~~''		\| 0x04 \|\| UInt32 \|\| Size of all blocks. ''File size - header length (0x40)''
	\|-		\|-
	\| 0x08 \|\| UInt16 \|\| Audio format. 0 = ADPCM, 1 = PCM16		\| 0x08 \|\| UInt16 \|\| Audio format: 0 = ADPCM, 1 = PCM16
	\|-		\|-
	\| 0x0A \|\| UInt16 \|\| Bit depth.		\| 0x0A \|\| UInt16 \|\| Bit depth
	\|-		\|-
	\| 0x0C \|\| UInt16 \|\| Number of channels.		\| 0x0C \|\| UInt16 \|\| Number of channels
	\|-		\|-
	\| 0x0E \|\| UInt16 \|\| Loop enabled? 0xFFFF ~~= true. 0 = false.~~		\| 0x0E \|\| UInt16 \|\| Loop enabled: 0x0000 if no loop, 0xFFFF if loop
	\|-		\|-
	\| 0x10 \|\| UInt32 \|\| Sample rate.		\| 0x10 \|\| UInt32 \|\| Sample rate
	\|-		\|-
	\| 0x14 \|\| UInt32 \|\| Total sample count.		\| 0x14 \|\| UInt32 \|\| Total sample count
	\|-		\|-
	\| 0x18 \|\| UInt32 \|\| Loop start in samples.		\| 0x18 \|\| UInt32 \|\| Loop start in samples
	\|-		\|-
	\| 0x1C \|\| UInt32 \|\| Loop end in samples.		\| 0x1C \|\| UInt32 \|\| Loop end in samples
	\|-		\|-
	\| 0x20 \|\| UInt32 \|\| ~~Unknown. Seems to be the~~ size ~~of the first~~ block.		\| 0x20 \|\| UInt32 \|\| Default data size per channel in a block
	\|-		\|-
	\| 0x24 \|\| UInt32 \|\| Unknown. Always 0.		\| 0x24 \|\| UInt32 \|\| Unknown. Always 0
	\|-		\|-
	\| 0x28 \|\| UInt32 \|\| ~~Unknown~~. Always 0x7F000000.		\| 0x28 \|\| UInt32 \|\| Volume. Always 0x7F000000
	\|-		\|-
	\| 0x2C \|\| Byte \|\| Always 0. Likely padding.		\| 0x2C \|\| Byte \|\| Always 0. Likely padding
	\|-		\|-
	\| 0x40 \|\| \|\| End of ~~Header.~~		\| 0x40 \|\| \|\| End of header
	\|-		\|-
	\|}		\|}
	== BLCK ==		== BLCK ==
	AST ~~file~~ contain multiple BLCK sections, each containing sound data.		AST files contain multiple BLCK sections, each containing sound data.
	{\| class="wikitable"		{\| class="wikitable"
	! Offset !! Type !! Description		! Offset !! Type !! Description
	\|-		\|-
	\| 0x00 \|\| String \|\| Block magic. '''BLCK''' in ASCII.		\| 0x00 \|\| String \|\| Block magic. '''BLCK''' in ASCII
	\|-		\|-
	\| 0x04 \|\| UInt32 \|\| Block size.		\| 0x04 \|\| UInt32 \|\| Block size; the data size per channel in this block
	\|-		\|-
	\| 0x08 \|\| ~~Byte~~ \|\| ~~Unknown. Likely padding for alignment.~~		\| 0x08 \|\| UInt16 \|\| ADPCM only: channel 1 last value
	\|-		\|-
	\| 0x20 \|\| Byte \|\| Sound data.		\| 0x0A \|\| UInt16 \|\| ADPCM only: channel 1 penult value
			\|-
			\| 0x0C \|\| UInt16 \|\| ADPCM only: channel 2 last value
			\|-
			\| 0x0E \|\| UInt16 \|\| ADPCM only: channel 2 penult value
			\|-
			\| 0x10 \|\| UInt16 \|\| ADPCM only: channel 3 last value
			\|-
			\| 0x12 \|\| UInt16 \|\| ADPCM only: channel 3 penult value
			\|-
			\| 0x14 \|\| UInt16 \|\| ADPCM only: channel 4 last value
			\|-
			\| 0x16 \|\| UInt16 \|\| ADPCM only: channel 4 penult value
			\|-
			\| 0x18 \|\| UInt16 \|\| ADPCM only: channel 5 last value
			\|-
			\| 0x1A \|\| UInt16 \|\| ADPCM only: channel 5 penult value
			\|-
			\| 0x1C \|\| UInt16 \|\| ADPCM only: channel 6 last value
			\|-
			\| 0x1E \|\| UInt16 \|\| ADPCM only: channel 6 penult value
			\|-
			\| 0x20 \|\| Byte \|\| Sound data
	\|-		\|-
	\|}		\|}

AwesomeTMC: Loop enabled is the unknown at 0xE

2026-03-17T03:33:55Z

Loop enabled is the unknown at 0xE

← Older revision		Revision as of 03:33, 17 March 2026
Line 18:		Line 18:
	\| 0x0C \|\| UInt16 \|\| Number of channels.		\| 0x0C \|\| UInt16 \|\| Number of channels.
	\|-		\|-
	\| 0x0E \|\| UInt16 \|\| ~~Unknown~~.		\| 0x0E \|\| UInt16 \|\| Loop enabled? 0xFFFF = true. 0 = false.
	\|-		\|-
	\| 0x10 \|\| UInt32 \|\| Sample rate.		\| 0x10 \|\| UInt32 \|\| Sample rate.

SY24: Added links to Music page and tutorials

2024-11-27T07:55:04Z

Added links to Music page and tutorials

← Older revision		Revision as of 07:55, 27 November 2024
Line 1:		Line 1:
	[[category:File formats]]		[[category:File formats]]
	~~= File Format =~~		'''AST''' files are audio streams found in several JAudio2 games, including ''Super Mario Galaxy'' and ''Super Mario Galaxy 2''. Both games store their '''AST''' files in the <code>AudioRes/Stream</code> directory.<br><br>
	'''AST''' files are audio streams, found in ~~both~~ ''Super Mario Galaxy'' and ''Super Mario Galaxy 2''.		For a comprehensive list linking '''AST''' files to the Galaxy they're used in, check the [[List of Music]] page.

	== Header ==		== Header ==
Line 55:		Line 55:

	= Tools =		= Tools =
	[~~[Tools~~#Audio~~\|ASTCreate]~~]		[https://www.lumasworkshop.com/tools/#audio-tools Luma's Workshop - Audio Tools]

	= Tutorials =		= Tutorials =
	[[Music ~~Importing Tutorial]~~]		[https://www.lumasworkshop.com/guides/?d=Changing%20Background%20Music Luma's Workshop - Changing Background Music]<br>
			[https://www.lumasworkshop.com/guides/?d=Importing%20New%20Music%20Tracks Luma's Workshop - Importing New Music Tracks]

Super Hackio: Super Hackio moved page AST to AST (File Format) without leaving a redirect: Needs to have (File Format) in the title

2024-01-26T22:41:19Z

Super Hackio moved page AST to AST (File Format) without leaving a redirect: Needs to have (File Format) in the title

← Older revision	Revision as of 22:41, 26 January 2024
(No difference)

MTLenz: Created page with "category:File formats = File Format = '''AST''' files are audio streams, found in both ''Super Mario Galaxy'' and ''Super Mario Galaxy 2''. == Header == AST file header, 0x40 bytes in length. {| class="wikitable" ! Offset !! Type !! Description |- | 0x00 || String || File magic. '''STRM''' in ASCII. |- | 0x04 || UInt32 || Size of all sound blocks. ''File Size - Header Length'' |- | 0x08 || UInt16 || Audio format. 0 = ADPCM, 1 = PCM16 |- | 0x0A || UInt16 || Bit dep..."

2024-01-23T21:47:18Z

Created page with "category:File formats = File Format = '''AST''' files are audio streams, found in both ''Super Mario Galaxy'' and ''Super Mario Galaxy 2''. == Header == AST file header, 0x40 bytes in length. {| class="wikitable" ! Offset !! Type !! Description |- | 0x00 || String || File magic. '''STRM''' in ASCII. |- | 0x04 || UInt32 || Size of all sound blocks. ''File Size - Header Length'' |- | 0x08 || UInt16 || Audio format. 0 = ADPCM, 1 = PCM16 |- | 0x0A || UInt16 || Bit dep..."

New page

[[category:File formats]]
= File Format =
'''AST''' files are audio streams, found in both ''Super Mario Galaxy'' and ''Super Mario Galaxy 2''.

== Header ==
AST file header, 0x40 bytes in length.
{| class="wikitable"
! Offset !! Type !! Description
|-
| 0x00 || String || File magic. '''STRM''' in ASCII.
|-
| 0x04 || UInt32 || Size of all sound blocks. ''File Size - Header Length''
|-
| 0x08 || UInt16 || Audio format. 0 = ADPCM, 1 = PCM16
|-
| 0x0A || UInt16 || Bit depth.
|-
| 0x0C || UInt16 || Number of channels.
|-
| 0x0E || UInt16 || Unknown.
|-
| 0x10 || UInt32 || Sample rate.
|-
| 0x14 || UInt32 || Total sample count.
|-
| 0x18 || UInt32 || Loop start in samples.
|-
| 0x1C || UInt32 || Loop end in samples.
|-
| 0x20 || UInt32 || Unknown. Seems to be the size of the first block.
|-
| 0x24 || UInt32 || Unknown. Always 0.
|-
| 0x28 || UInt32 || Unknown. Always 0x7F000000.
|-
| 0x2C || Byte || Always 0. Likely padding.
|-
| 0x40 || || End of Header.
|-
|}
== BLCK ==
AST file contain multiple BLCK sections, each containing sound data.
{| class="wikitable"
! Offset !! Type !! Description
|-
| 0x00 || String || Block magic. '''BLCK''' in ASCII.
|-
| 0x04 || UInt32 || Block size.
|-
| 0x08 || Byte || Unknown. Likely padding for alignment.
|-
| 0x20 || Byte || Sound data.
|-
|}

= Tools =
[[Tools#Audio|ASTCreate]]

= Tutorials =
[[Music Importing Tutorial]]