AidanHockey5
commented
2 years ago Hello,
So, YM2151 tracks are very simple to play as they’re generally FM-only. PCM samples are delegated to other chips. YM2612s feature on-board DACs, so the PCM samples are expected in almost all soundtracks, thus quite an excessive amount of RAM is required to handle all that extra sample data.
This player was an earlier version of my Mega Blaster design that featured an STM32 microcontroller that didn’t have very much RAM, so PCM sample size was limited. Furthermore, advanced functions like DAC Streams were never implemented due to the limitations of the platform.
Therefore, VGM tracks that have very large PCM sample storage requirements are skipped automatically by the player and any tracks that utilize DAC streams (often utilized by home brew composers), will cause the player to error out.
All of these issues have been fixed in my latest revision of the Mega Blaster project found here: https://github.com/AidanHockey5/MegaBlaster2
This upgraded version of the project has a far more capable microcontroller, lots more internal RAM, and even more external RAM. It’s better in just about every way and supports DAC streams and tracks with demanding PCM requirements.
The original Mega Blaster project (this repository), is no longer updated as it has been superseded by its successor. I apologize for any inconvenience, but the advanced features of the VGM specification really did require much more capable hardware, so a board revision was necessary.
On Mon, Feb 28, 2022 at 5:27 PM VectorFever @.***> wrote:
Everything works from VGMRips except some Contra tracks. But every track from DefleMask doesn't work at all. Even if it doesn't contain any samples and file sizes is small. Player just freezes. Previously i made ym2151 player(not your player, by Hiromasa Tanaka) and it works with all VGMs perfect. Why is it happening? There is so much fan made tracks and covers that just better than originals. Thank you for support. 😃
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VectorFever
Everything works from VGMRips except some Contra tracks. But every track from DefleMask doesn't work at all. Even if it doesn't contain any samples and file sizes are small. Player just freezes. Previously i made ym2151 player(not your player, by Hiromasa Tanaka) and it works with all VGMs perfect. Why is it happening? There is so much fan made tracks and covers that just better than originals. Thank you for support. 😃