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| MSX roms to audio
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heyfreak msx friend Berichten: 1 | Geplaatst: 11 Juni 2003, 14:25   |
i've baught an msx 1 from a classmate a while ago, but i haven't got any games to play on it.
This msx has a data-recorder.
My question is, is there a tool out there that can turn a MSX rom into audio so i can put it on tape and play it. You know, so i can play it on my msx.
I've been searching for a tool like thise for quite some tie but i still avent found one  |
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hap msx addict Berichten: 442 | Geplaatst: 11 Juni 2003, 16:01   |
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[WYZ] msx lover Berichten: 94 | Geplaatst: 03 Augustus 2003, 22:28   |
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GuyveR800 msx guru Berichten: 3048 | Geplaatst: 04 Augustus 2003, 00:46   |
That URL has some kind of anti-link protection :/ Can't visit  |
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[WYZ] msx lover Berichten: 94 | Geplaatst: 04 Augustus 2003, 10:56   |
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cax
 msx professional Berichten: 989 | Geplaatst: 04 Augustus 2003, 14:49   |
microwaver - does it only compression, or uses non-standard baud speed ?
I have a similar project - I compress multi-bload MegaROMs, and modify WAV to run at 3200 baud. I want to try microwaver on multiple bload-files - would be nice to load Vampire Killer in less than 5.5 min !
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[WYZ] msx lover Berichten: 94 | Geplaatst: 04 Augustus 2003, 15:49   |
Yes, MW uses a non-standard baud speed , less than 9 bits per byte (a standard byte takes 11 bauds [0]-[byte(8)]-[1]-[1] ) and a diferent &HE4 BIOS CALL. ( it would be implemented to WaVer)
Vampire Killer ROM will take only 3:02 min at maximun compression/speed (44%/3600 baud aprox. and 48000 Hz wave output) but megarom load isn't available. (I'm working on it . I need some help with this)
Multi-bload is available but not tested with 3 or more bloads.
PS:Sorry, English isn't my favorite language. |
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GuyveR800 msx guru Berichten: 3048 | Geplaatst: 04 Augustus 2003, 19:05   |
Quote:
| PS:Sorry, English isn't my favorite language.
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I suppose it's nobody's favorite language, but we're stuck with it ^^;
IMO english is a speech impediment, no offence to the native speakers  |
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cax
 msx professional Berichten: 989 | Geplaatst: 04 Augustus 2003, 19:07   |
Wow, sounds interesting (and this can eliminate efforts I put into my project  )
I'd like to get the working version of the program, even if it's in alpha stage, just to see whether I should stop my project and concentrate on something else.
[WYZ], If you want to see my project's homepage, or if I can help you with MegaRoms, please contact me
borus@<spam_remover>bigfoot.com |
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[WYZ] msx lover Berichten: 94 | Geplaatst: 04 Augustus 2003, 19:47   |
ok. I'm very interested in megarom load. i will send you a most complete version of MW.
Of course , you can modify the code as you wish.
Have you tried the demos? report me any load error please.
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[WYZ] msx lover Berichten: 94 | Geplaatst: 05 Augustus 2003, 16:05   |
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manuel msx guru Berichten: 3299 | Geplaatst: 05 Augustus 2003, 19:39   |
Hey, it seems there is a very nice opportunity for 3 peopel to work together here! Guys, please supririse us with the best ROM (and whatever more) loading tool for diskless MSX systems with cassette port!
Also, is 3200 baud the maximum speed?
Wouter, one of the developers of openMSX, recently coded a built-in .CAS to .WAV converter for openMSX. We have experimented a bit with the baudrates it is generating, and - as far as I remember, it was a few weeks ago - we also couldn't get things loaded when using a baudrate higher than about 3500 baud. I do remember that there were programs that let you save the data on at least 4600 baud, so I assume that should be possible to load too.
Also, does anyone know how the CD Sequential stuff works exactly? We've been trying to get it emulated, but we don't have the volume tuning stuff working. Whatever volume you choose for the WAV doesn't matter, since the current method only looks at changes in POS or NEG signal. We know it needs some modifications, but we'd like to have some clear explanation of how the MSX cassetteport and circuit works exactly. 
Contact us at penmsx-devel@lists.sf.net'>openmsx-devel@lists.sf.net
Thanks and good luck with your projects!
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cax
 msx professional Berichten: 989 | Geplaatst: 05 Augustus 2003, 20:42   |
I don't know how CD Sequential works, but if you'll compare the amount of data they put on CD with the amount of data I can put after converting compressed bload-able MegaROMs @3200 baud, you'll see it's about the same.
And with the help of WYZ, I hope to gain another 30% of speed, so MegaROM will be loaded in 2-4 minutes only.
Seems the CD Sequential guys didn't use compression.
But you are right, I also can't set the volume high enough to make CD Sequential work.
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[WYZ] msx lover Berichten: 94 | Geplaatst: 05 Augustus 2003, 20:43   |
Quote:
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I do remember that there were programs that let you save the data on at least 4600 baud, so I assume that should be possible to load too.
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That's wrong. A2 port is really fast but it cann't read higher bps than 4600 . it needs a program to manage port changes. That's the problem. Bios call $E4 can read 3000-3800 baud. You must modify this bios function for higher bps.
Using FSK is not posible to load data at 4600 bps on MSX, perhaps reading directly A2...
PS: All your base are belong to us (Toaplan) http://www.planettribes.com/allyourbase/index.shtml |
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[WYZ] msx lover Berichten: 94 | Geplaatst: 06 Augustus 2003, 19:23   |
MicroWaver V 0.1 Finished!!!
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