Content-wise, you also need to consider what the meaning is of the terminology "anti aliased"; technically, it means you prevent the double interpretation of wave partials, which is usually associated with AD or DA conversion, as in that high frequency components that are put on a AD converter will be "aliased" because they will mirror around the Nyquist rate and become indistinguishable from a similar frequency in the input signal.
A more common thing to think about in softwaere waveform synthesis, apart from this principle but then in the "virtual" sampling of a waveform,, is to consider the error an actual DAC (digital to analog converter, like your sound card has), as compared with a "perfect reconstructor", which would take your properly bandwidth limited signal (to prevent aliasing) and (given a very long latency) turn it into a perfect output signal from you sound card. The DAC in you soundcard will not do this job perfectly, even if you're perfectly anti-aliasing or bandwidth limiting your digital signal. That's because of the sampling reconstruction theorem's need for a very long filter, while and actual DAC has a very short reconstruction filter. One of the effects of this limitation is probably the most important to consider for musical instruments producing sound which will be amplified into the higher Decibel domains: mid frequency blare. Especially in highly resonant spaces, like those with un-damped parallel reflective walls, certain sound wave patterns tend to amplify through reverberation causing a lot of clutter in the sensitive range of the human hearing, the middle frequencies (lets say 1000 through 4000 Hz). This "blare" becomes louder because of various digital processing and DAC reconstruction ensemble effects, and preferably should be controlled. So especially for serious "live" music reproduction, measures ought to be in place to control the amount (and kind) of blare your software isntrument produces, probably as higher priority than the exact type and amount of "anti-aliasing" you provide. Theo V. _______________________________________________ dupswapdrop: music-dsp mailing list email@example.com https://lists.columbia.edu/mailman/listinfo/music-dsp