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PostPosted: 2015-05-11, 0:20:40 

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Thanks MaliceX, I will give it a try.


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PostPosted: 2015-05-11, 18:13:40 

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Another way to convert Adlib tracker 2 files into VGM is to write a converter that doesn't need DOS. It is doing playback but is writing the commands to a file instead of to the sound card; the only difference is now you need to add the special handling of global loops. (BAMTOVGM works in this way. A similar thing could be done for Adlib tracker.)


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PostPosted: 2015-05-11, 19:13:14 
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holy smokes ;) this is cool, gonna try this out! thanks!!


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PostPosted: 2015-05-11, 20:21:00 

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@MaliceX I still can’t hear the click drums on my MSX’s OPL4. I’m really suspecting now that it greatly depends on the DAC and/or filter on the output, or maybe some difference between the OPL3 and OPL4. The noise floor in the original recording suggests on his sound card there is little filtering. The original playback frequency of the song seems to be around 800 Hz.

@MrKsoft Nice song :). Both versions sound ok on vgmplay-msx, no weird hanging drums in the Dosbox version like in the emulation. The hang greatly exceeds the recording frequency so something strange is going on there. The original replay frequency on this song seems to be around 300 Hz.

(Now that vgmplay-msx has a 4000 Hz resolution on MSX turboR, I can quite easily tell the original replay frequency by the number of fat debug activity indicator bars that appears on my screen during a frame, and how many thinner bars are inbetween.)


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PostPosted: 2015-05-12, 3:58:43 

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zzo38 wrote:
Another way to convert Adlib tracker 2 files into VGM is to write a converter that doesn't need DOS. It is doing playback but is writing the commands to a file instead of to the sound card; the only difference is now you need to add the special handling of global loops. (BAMTOVGM works in this way. A similar thing could be done for Adlib tracker.)


In my hack-in, I simply grafted function calls to the ymf262 emulation core's interface functions by using helper code from my OPL3 MIDI Driver fork project. What you hear is what you get essentially. It would be nice to have an offline converter but that requires more time and effort. Also this solution is the SDL win32 port, so I'm not sure where you're getting DOS from.

grauw: the log resolution appears to capture commands in sync with AdlibTracker's internal delays between each row when transcoding its synth engine to chip commands. So the delays are actually more consistent with the song than how DOSBOX does it (especially since we're doing so natively, not using an emulated CPU) Songs with more rows per second or faster tempo will have smaller delays. I have already verified this behaviour. :)

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PostPosted: 2015-05-16, 23:01:33 
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so, some people already know this... i got myself a 2nd gimic, this time with a PCM playback chip onboard, X68000 songs will sound like the original and maybe SegaPCM enabled games too :mrgreen: gonna keep you guys updated


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PostPosted: 2015-06-27, 17:05:02 

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Could you fill up some info on the wiki for us, please?

Be sure you're logged in on the forum:

http://vgmrips.net/w/index.php?title=G. ... &redlink=1

Maybe a link to its homepage, and you can write as much as you want.

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