Short : Plastic Dove
Author : Abyss
Type : exe music 6860 bytes, ocs
Release Date: 20.05.2022
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Abyss - The deepest experience
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P L A S T I C D O V E
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Code & Audio: Pink
This release features the new optimized 'Pretracker 1.6' replayer
to allow easier use in intros (less rastertime, smaller replayer).
About the tech:
The PreTracker synth precalcs all samples on startup. For actual
replaying packed register dumps are used which get decompressed
at runtime. The iterative PreTracker packer tries to find a balance
between song size, decompression performance and final size
when compressed with Shrinkler. Longer songs pack better and
filesize doesn't grow linearly with playtime.
The song 'Plastic Dove' from Abyss' 'Coda' intro is used as example.
The original register dump takes 153.568 bytes. The packed file
takes 12.802 bytes (for a duration of 1 minute and 35 seconds).
Much better pack ratios are possible but cause larger files
when finally compressed by Shrinkler.
The replayer takes around 10 rasterlines on A500 and needs no interrupts.
This includes the mandatory 8 rasterlines DMA wait which are needed
by PreTracker tunes that use certain features. In this intro a
slightly smaller but slower version is used (this gains another 1000
bytes in the final size).
Thanks to Bartman and Blueberry (Shrinkler).
Feel free to contact Pink at
https://soundcloud.com/pink_abyss