FM BLASTER - MOONSOUND clone

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Par ericb59

Paladin (927)

Portrait de ericb59

06-04-2015, 21:08

@meits, as I said previously, it use Yac513 DAC

Par anonymous

incognito ergo sum (109)

Portrait de anonymous

06-04-2015, 21:28

Don't know which one Moonsound uses, it's just that I've been told there are better ones around than sunrise used Wink

Par Grauw

Ascended (8743)

Portrait de Grauw

07-04-2015, 11:35

Meits, it is based on Wozblaster, which uses the same DAC as the MoonSound. See http://www.msx.org/wiki/OPL4.

I’ve done some tests comparing the MoonSound with the DalSoRi, the YAC513 has a crispness to the sound but can be difficult to tame, whereas the Philips UDA1330A used in the DalSoRi sounds more subdued but has less trouble playing certain tone combinations. I think in the end it’s a matter of taste.

Par hit9918

Prophet (2886)

Portrait de hit9918

07-04-2015, 21:55

@ericb59

Quote:

Very soon now, a batch of RS232 cartridges will be available. It can be used with some Rs232 to Ethernet module, and many other devices...

And if it can make a timer interrupt then it makes a musical cartridge!
I don't know about rs232, but if you can get interrupt beyond 60hz then do it!
But if possible keep compatible with existing rs232.
Then in the manual tell the asm to make it do interrupts and then you can rightfully put these stickers on the cartridge:

musical enhancer cartridge (all soundchips)
never again 50hz vs 60hz BPM problems

and if you could get say 9600 interrupts, you could put the stickers
makes the little TurboR do samples digi sound (it has a DAC but lacks midi gear)
midi precision players

that would need software. well cartridges with e.g. a second AY too needs software, no news.
the player BPM issue is very low hanging fruit, need only a bit of code and the thing is in the game.

Par ToriHino

Champion (452)

Portrait de ToriHino

07-04-2015, 22:03

hit9918 wrote:

@ericb59

Quote:

Very soon now, a batch of RS232 cartridges will be available. It can be used with some Rs232 to Ethernet module, and many other devices...

And if it can make a timer interrupt then it makes a musical cartridge!
I don't know about rs232, but if you can get interrupt beyond 60hz then do it!
But if possible keep compatible with existing rs232.
Then in the manual tell the asm to make it do interrupts and then you can rightfully put these stickers on the cartridge:

musical enhancer cartridge (all soundchips)
never again 50hz vs 60hz BPM problems

and if you could get say 9600 interrupts, you could put the stickers
makes the little TurboR do samples digi sound (it has a DAC but lacks midi gear)
midi precision players

that would need software. well cartridges with e.g. a second AY too needs software, no news.
the player BPM issue is very low hanging fruit, need only a bit of code and the thing is in the game.

The opl4 itself also has already two timer interrupts, and you get a great soundchip as well

Par Grauw

Ascended (8743)

Portrait de Grauw

07-04-2015, 22:18

ToriHino wrote:
hit9918 wrote:
Quote:

Very soon now, a batch of RS232 cartridges will be available. It can be used with some Rs232 to Ethernet module, and many other devices...

And if it can make a timer interrupt then it makes a musical cartridge!
never again 50hz vs 60hz BPM problems

The opl4 itself also has already two timer interrupts, and you get a great soundchip as well

The MSX-AUDIO and Yamaha SFG-01/05 as well. All MIDI interfaces too. Smile

The problem is, there are so many different timers, it’s quite a big job to write software that supports them all. When I do (for Synthesix) I will probably do it for the sound and MIDI cartridges only.

Par mars2000you

Enlighted (5567)

Portrait de mars2000you

07-04-2015, 22:15

MSX-AUDIO does not produce stereo sound (except if used with MSX-MUSIC in Moonblaster or another software) while OPL4 and SFG-01/05 give stereo sound.

Par hit9918

Prophet (2886)

Portrait de hit9918

07-04-2015, 23:11

Okay, the super high end soundchip users commented Wink
Still I hint on the synergy.
If my suspicion about rs232 holds then it takes only a bit asm in the manual and then you can rightfully put the sticker "musical enhancement cartridge (all soundchips)".
Really low hanging fruit.
And e.g. to get ones player called in that BPM interrupt is NOTHING compared to the effort of supporting another soundchip.

Par hit9918

Prophet (2886)

Portrait de hit9918

07-04-2015, 23:46

And another thing, documentation.
Any documentation about coding rs232 and audio bios?

Par sd_snatcher

Prophet (3246)

Portrait de sd_snatcher

07-04-2015, 23:47

Quote:

@sd_snatcher : The board does not have MSX-audio bios

Too sad. I really wonder why nobody designs those OPL4 cartridges with a Flash to have the BIOS in them... This is maybe the 4th OPL4 cartridge designed after the BIOS v1.3 was launched, and yet not only a single design have support for the BIOS.

From the software side, no developer support also. I ponder if I should develop new versions since no one from either side seems to be interested. Any users interested at least?

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