Advanced Sound Library: Difference between revisions

Advanced Sound Library
Advanced Sound Library
General
Author	Noda
Type	Media Players
Version	1.0
License	Mixed
Last Updated	2007/12/02
Links
	Download
	Website

Latest revision as of 01:44, 16 January 2025

The Advanced Sound Library (ASlib) is a new sound library for the NDS.

Features

MP3 engine.
Audio engine.

User guide

MP3 engine

MP3 is decoded on the arm7, so use nearly no CPU time on the arm9.
Stereo & surround modes available (surround works even for mono mp3s).
Up to 44Khz/stereo/96Kbps, though it is recommended to use 32Khz/stereo/80Kbps max, which is enough for the DS and works great with up to +25%/-100% pitching.
Support real-time pitching (changing the playing speed of the mp3).
Support real-time volume and panning change.
The MP3 can be paused and restarted.
The MP3 can be set to loop automatically.
Support playing from RAM and streaming from FAT or EFS.
You can disable the mp3 engine if you want, to get 2 more channels.

Audio engine

Can use the whole 16 DS channel or only the first half (so you can use an external mod player, for example).
Support standard or surround/fx mode (16 channels in standard mode (-2 if mp3), 8 in surround/fx mode (-1 if mp3)).
Simple sound playing using a priority system: if no channel is available, stop a sound that has less priority than the new one to play it, or skip it if all sounds have more priority.
Possibility to reserve a particular channel so it won’t be used in the channel pool by the priority playing system. You can then manage the reserved sound channels manually.
Surround or pseudo-reverb can be activated per sound (works great with mono sounds).
Support real-time volume, panning and pitch modifications for each sound.
Support sound looping.

The lib comes with a template and a example of what you can do with it.

Known issues

This library build using a way old DKP version: devkitPro r21 and libnds 20071023, newer version may not compile it because the IPC system was removed.

There is a port of ASlib to BlocksDS in the PAlib repository, allowing developers to use ASlib with modern tools: https://github.com/AntonioND/palib

Credits

IPC sound system and streaming is based on cold_as_ice streaming example.

Audio stream filling / mp3 decoding based on ThomasS mp3 decoding example.

ASM stereo desinterleave function was made by Thoduv.

External links

Author's website - http://nodadev.wordpress.com/nds-projects/advanced-sound-library

@@ Line 1: / Line 1: @@
-{{Infobox homebrew
+{{Infobox DS Homebrews
-| title       = Advanced Sound Library
+|title=Advanced Sound Library
-| image       =
+|image=aslib.png
-| type        = Audio
+|description=A sound library for the NDS.
-| version     = 1.0
+|author=Noda
-| licence     = Mixed
+|lastupdated=2007/12/02
-| author      = Noda
+|type=Media Players
-| website     = http://nodadev.wordpress.com/nds-projects/advanced-sound-library/
+|version=1.0
-| download    = Media:Advancedsoundlibraryds.rar
+|license=Mixed
-| source      =
+|download=https://dlhb.gamebrew.org/dshomebrew2/advancedsoundlibrary.rar
+|website=http://nodadev.wordpress.com/nds-projects/advanced-sound-library
 }}
 The Advanced Sound Library (ASlib) is a new sound library for the NDS.
 ==Features==
-*MP3 engine:
+*MP3 engine.
-:mp3 is decoded on the arm7, so use nearly no CPU time on the arm9
+*Audio engine.
-:stereo & surround modes available (surround works even for mono mp3s)
-:up to 44Khz/stereo/96Kbps, though I recommend using 32Khz/stereo/80Kbps max, which is enough for the DS and works great with up to +25%/-100% pitching
-:support real-time pitching (changing the playing speed of the mp3)
-:support real-time volume and panning change
-:the mp3 can be paused and restarted
-:the mp3 can be set to loop automatically
-:support playing from RAM and streaming from FAT or EFS
-:you can disable the mp3 engine if you want, to get 2 more channels
-*Audio engine:
+==User guide==
-:can use the whole 16 DS channel or only the first half (so you can use an external mod player, for example)
+===MP3 engine===
-:support standard or surround/fx mode (16 channels in standard mode (-2 if mp3), 8 in surround/fx mode (-1 if mp3))
+* MP3 is decoded on the arm7, so use nearly no CPU time on the arm9.
-:simple sound playing using a priority system: if no channel is available, stop a sound that has less priority than the new one to play it, or skip it if all sounds have more priority.
+* Stereo & surround modes available (surround works even for mono mp3s).
-:possibility to reserve a particular channel so it won’t be used in the channel pool by the priority playing system. You can then manage the reserved sound channels manually.
+* Up to 44Khz/stereo/96Kbps, though it is recommended to use 32Khz/stereo/80Kbps max, which is enough for the DS and works great with up to +25%/-100% pitching.
-:surround or pseudo-reverb can be activated per sound (works great with mono sounds)
+* Support real-time pitching (changing the playing speed of the mp3).
-:support real-time volume, panning and pitch modifications for each sound
+* Support real-time volume and panning change.
-:support sound looping
+* The MP3 can be paused and restarted.
+* The MP3 can be set to loop automatically.
+* Support playing from RAM and streaming from FAT or EFS.
+* You can disable the mp3 engine if you want, to get 2 more channels.
+===Audio engine===
+* Can use the whole 16 DS channel or only the first half (so you can use an external mod player, for example).
+* Support standard or surround/fx mode (16 channels in standard mode (-2 if mp3), 8 in surround/fx mode (-1 if mp3)).
+* Simple sound playing using a priority system: if no channel is available, stop a sound that has less priority than the new one to play it, or skip it if all sounds have more priority.
+* Possibility to reserve a particular channel so it won’t be used in the channel pool by the priority playing system. You can then manage the reserved sound channels manually.
+* Surround or pseudo-reverb can be activated per sound (works great with mono sounds).
+* Support real-time volume, panning and pitch modifications for each sound.
+* Support sound looping.
-==User guide==
 The lib comes with a template and a example of what you can do with it.
 ==Known issues==
 This library build using a way old DKP version: devkitPro r21 and libnds 20071023, newer version may not compile it because the IPC system was removed.
+There is a port of ASlib to BlocksDS in the PAlib repository, allowing developers to use ASlib with modern tools: https://github.com/AntonioND/palib
 ==Credits==
@@ Line 47: / Line 52: @@
 ASM stereo desinterleave function was made by Thoduv.
-[[Category:Homebrew applications]]
+==External links==
+* Author's website - http://nodadev.wordpress.com/nds-projects/advanced-sound-library