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I made a couple noise-ish instruments with the FDS wave by using a RNG for the waveform and the modulator table. It works pretty well in FT, but when I export to nsf, you can clearly hear that my kick drums don't silence the way the do in Famitracker, so I suspect a big with the exporter.
This is a difference in emulation rather than an export bug, because the NSF sounds fine when using the same emulation as famitracker.
The exact behavior of the modulator is still unknown so different players are likely to sound different, but NEZplay++ seems to be closest to the real hardware (according to my tests so far) so I suggest testing with that if you want to know how the NSF sounds like. It emulates some properties that no other player do (yet).
I don't have my FDS setup available at the moment, but I make a recording of this NSF later so you can compare yourself.
foo_gep seems to get it pretty much spot-on, at least in comparison with Famitracker (I can't vouch for its hardware accuracy; we'll have to wait for jsr's recording for this).
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I record (some) NSFs on hardware. Feel free to [url=http://www.famitracker.com/forum/posts.php?id=3633]request a hardware render.
Haha yeah, FCEUX gets the kick right,but messes up the rest...
I mostly try NSFs in VirtuaNSF and NSFPlay only, and both of those had the issue with the kick sound not cutting off the way it should (didn't matter if I Sxx-d or tried different volume macros.)
Can't wait to hear the results on a real FDS! I guess it's probably going to sound like Famitracker, but low-pass filtered of course, since the Portal 2 collab by danooct1 and flashygoodness sounded pretty much the same on the console and in FT (which used the modulator a lot, although not at such a high rate) .
Actually, are you going to implement the low-pass filter the signal goes through into FT at some point?
Low-pass filtering is added and will be present in the next version of FT, I'll also add more things once I figure them out.
One other example (not yet added) is some non-linearities in the DAC that adds some (very) audible distortion to the audio. This is actually simulated by NEZplug++, although not exactly as my device but I guess that's individual for each FDS unit (due to the manufacturing process). You can hear it when playing a sine or saw wave.
Well let me be the first to say. Congrats on the FDS emulation. FT sounds exactly the same as the FDS recording.
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