Edit Infobox DS Homebrews: Advanced Sound Library

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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. ==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

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