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SPC and NSF are both now using blargg's engines and in both cases they should be perfect, limited only by the current state of knowledge of those chips. I don't know of any defects in either emulation.

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I know of a few minor differences. For NSF, nonlinear sound mixing for isn't implemented in the public release, since it's almost unnoticeable (I can send support if this is really desired). I also don't know the exact mix levels of the external sound chips (VRC6, Namco 106, FME-7), so these might be slightly off. The other aspects of sound should be very nearly perfect, though I still haven't written a complete set of verification ROMs for the NES APU.

For SPC, I've addressed all issues I've encountered so far. I know of a few differences in the DSP core that I haven't bothered to add (clamp before fourth Gaussian lookup, for example), since I haven't set up a good test framework. It shouldn't be hard to compare my DSP core to the latest docs to work out these, if anyone wants to. If they have an effect on sound, I haven't noticed it. I've done comparisons with sound track recordings from my SNES and found no audible difference.

I'm still actively working on my Game_Music_Emu sound engine (which AO uses) and welcome reports of possible inaccuracies. First check my list of buggy game music for things I've already verified to sound "wrong" on the actual system.

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BTW, check out the new rip of Genesis OutRunners on PJ2612 - it's hilariously bad compared to the arcade original (as heard in M1) smile

(No, I'm not saying the rip itself is bad, the game is).

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Quote
Originally posted by R. Belmont:
BTW, check out the new rip of Genesis OutRunners on PJ2612 - it's hilariously bad compared to the arcade original (as heard in M1) smile

(No, I'm not saying the rip itself is bad, the game is).
The statement below is true.
The above statement is false. :p

Your post probably would've sounded better like: "Check out the new rip of Genesis OutRunners on PJ2612. BTW, The gameplay is hilariously bad compared to the arcade original." :annoyed: Dang. That's my favorite one.


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Wow, nice release. Good work.

Is the .vtx support for Mac as well? When I try and play the files it causes AO to instantly quit.

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Sigh. It's possible that it is broken. Please point me to the files you're using?

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Tom: I'm not even judging the gameplay, just the music. I realize the YM2612 is a long way from a MultiPCM, but they weren't even trying :-)

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Richard, the files I am trying to use are located here .

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Could you say which file(s) from which archive(s) there are doing it? Every one I've tried from the "VTX, YM, etc" archive works fine, for instance (this is on Windows, but I need exact verification that it's Mac-only lest we waste Richard's time).

ETA: the "Mortal Kombat.vtx" from that archive is fantastic. *That's* how you make weak hardware go the distance :-)

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Ok, download the "ZX Spectrum Music v1.1" here should give you Nostalgic.RAR

nostalgic/bosconia/bosconia1.vtx

I get this message in the console:

Assertion (0) failed in "mac-file.c", function "file_check_queue", line 126

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