VOGONS


canadacow 2003-06-30 tester

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First post, by Snover

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What it sounds like (attached)
What it SHOULD sound like

Yes, it’s my fault.

Reply 1 of 21, by robertmo

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er.. and what to do with that .ogg?

Reply 2 of 21, by Kaminari

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You mean... You don't know Ogg Vorbis?

Well, you could try playing it in Winamp 😀

Reply 3 of 21, by oneirotekt

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Yeah, this is that out-of-tune problem I mentioned in the main thread. I tried the latest version of the emulator (DOSbox.exe is dated 07.06.2003) and it's still there (though it doesn't sound exactly like it did in the earlier version). If it sounds like this on my machine and on Snover's machine, but not on Canadacow's machine, that sounds like a big problem.

Reply 4 of 21, by canadacow

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Ok... ok... ok.... Got it fixed in the latest version to be out tomorrow. Big news too.. I've incorporated the real drum patches and they sound great. (Actually, it was in doing so I tracked down where the out of tuneness was coming from). Anyway, its really late here (5:00AM) so I'm not going to post a new version just yet.

Reply 5 of 21, by HunterZ

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If it's not a big deal, could you or someone else post an mp3 recording again when the new version comes out? I'm lazy but trying to keep up with development 😉

Reply 6 of 21, by canadacow

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Sure... from now on I'll post SQ3 and Monkey Island versions on my site. Oh... and for sh*ts and giggles, I'll post what my first version sounded like in SQ3. Mwahaha.

Reply 7 of 21, by canadacow

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Lalala... new version out tonight. As always... I'm still inching my way closer to that original MT-32 sound. There are only a few final parameters that I need to nail down before it sounds right. I think I'm getting pretty close now, doesn't everyone agree? (Or should I just quit now and accept defeat?)

Reply 8 of 21, by oneirotekt

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Recording of latest version (executable is dated 07.11.2003 04:18) running Monkey1 on my machine here. The pitch problem is still very much there, just different.

Reply 9 of 21, by HunterZ

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Thanks for posting a new recording. I must say that it's extremely hard to evaluate the quality of the emulation with the pitch problem. I thought you knew what was causing it, but I guess maybe you haven't had a chance to work on fixing it yet? Keep at it 😉

Reply 10 of 21, by Snover

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It's still out of tune, very badly in some places (didn't you listen to the files? 😉) It almost sounds like it's using logarithmic tuning or something.

Yes, it’s my fault.

Reply 11 of 21, by HunterZ

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Snover: exactly. Disheartening, but hopefully CC will figure it out eventually.

Reply 12 of 21, by Snover

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Actually the latest version sounds even worse.

Yes, it’s my fault.

Reply 13 of 21, by canadacow

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Well... I'm struggling right now with whether its my waveform generation that's lacking or if its the low pass filter that's misconfigured. Thanks for your input though.

Reply 14 of 21, by Snover

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Which did you change last time?

Yes, it’s my fault.

Reply 15 of 21, by canadacow

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A little of everything. Good news. I finally have the PCM list down pat. No more problems with mismatched PCM samples. The final challenge that remains is that damn filter. For some reason (as everyone has noticed) I just can't seem to get the same bright sound as the MT-32. WTF? Oh well. There will be no new released versions until I get that bright sound I'm looking for.

P.S. Where did Vladr go? Does he still care about MT-32 emulation?

Reply 16 of 21, by Snover

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Originally posted by canadacow
P.S. Where did Vladr go? Does he still care about MT-32 emulation?

he has more important things to think about at the moment. 😀

Yes, it’s my fault.

Reply 17 of 21, by canadacow

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What could be more important than an open source project?

Reply 18 of 21, by Fop

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I listened to the newest samples and it now sounds really promising! The MI tune is enjoyable even. The one without the low pass filter sounds like auditory torture 😜

Reply 19 of 21, by Zorbid

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I listened to the 2 versions of SQ3 you've uploaded...

They both are out of tune. Are you sure that you use the right value for your half tones in the fft? or in the sawtooth/square wave generator?

Could you please post a sample of all possible c notes from the lower possble picth, to the higher possible pitch, played sequencially, first of a pure pcm sound, then of a pure and unfiltered sawtooth, then of a pure squarewave?
Then the same but with c d e f g a b c d e f g a b c (2 octaves)
Then with c c# d d# e f f# g g# a a# b c c# d d# e f f# g g# a a# b c

Played by the emulator, and by the MT-32. I'd like to compare...

Last edited by Zorbid on 2003-07-21, 07:28. Edited 1 time in total.