SynthMakerDave ·
Hi,
are the internal SM oscs "aliasing-free"?
And what db got the moog-like filters shipped with SM? 12db?
Thanks, Dave
SM oscs = aliasing-free?
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oddson ·
The stock oscillators, including the wave table, are band limited. But if you modulate the phase you can introduce aliasing.
As for the moog filter. It looks like it's based on this
http://www.musicdsp.org/archive.php?classid=3#26
...which says 24dB.
MegaHurtz ·
they are not, and thats a good thing 😉
Dave ·
MegaHurtz wrote: they are not, and thats a good thing 😉
Why is this a "good" thing when everybody wants alias-free oscs?
Acrobat ·
If you use Andrew's OVERSAMPLING kit, you probably push aliasing somewhere else... ? 😕
infuzion ·
Dave wrote: MegaHurtz wrote: they are not, and thats a good thing 😉
Why is this a "good" thing when everybody wants alias-free oscs?
MegaHurtz seems to be speaking a random troll language lately.
trogluddite ·
Dave wrote: Why is this a "good" thing when everybody wants alias-free oscs?
Neither good nor bad, just different - same way that some folk record at 96kHz/24 bit, but some swear by their old 12 bit samplers - only your ears can be the judge. Cerainly not 'everbody' wants alias free, the important question is, do you? (as the name suggests, I may of course be a troll too!)
infuzion ·
trogluddite wrote: Dave wrote: Why is this a "good" thing when everybody wants alias-free oscs?
Neither good nor bad, just different - same way that some folk record at 96kHz/24 bit, but some swear by their old 12 bit samplers - only your ears can be the judge. Cerainly not 'everbody' wants alias free, the important question is, do you?
I keep my Korg DSS-1 around for that 12bit love for sure. 😀 But for the most part, it is easier to add distortion then remove it; that's why studios always fight for a 95%+ pure recording before mixing.
MegaHurtz ·
why ask if ya cant hear it? 🙂
MichaelBenjamin ·
its probably better to judge the sound with the ears rather than checking the code with the eyes, but the latter may also be complementary. as far as aliasing goes it can be regarded as an effect, that more or less introdues itself during certain processings that have something other in mind. in most cases it would be unwanted though, so you can apply low pass filtering before processing (thats the only thing i know of to prevent it). if you cant hear it, then it probably doesnt matter, however, it may be difficult to separate the aliasing from another effect after processing, for example distortion, so it may be hard to judge whats aliasing and what not. after my experience it sounds nicer without aliasing, but that again is a matter of taste. but you could aswell forget about anti aliasing and just use a high sampling rate for rendering (88-192khz) to minimize its effect.
sunsynth ·
why ask if ya cant hear it?
=> exactly 😀
MichaelBenjamin ·
but how can you distinguish the aliasing of a full band shaped signal from the actual distortion?
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