From ccmacdon@rogers.com Thu Dec 13 06:20:13 2012
Subject:Re: Harmonic Beating ...What is It?

That's a good question.

It's obviously an unintentional thing.. and most manufactures take the time to ensure that they "code it" out of the instrument, so my guess off the top of my head, especially because your example is Roland vs Casio, is that I would fully expect that Roland has invested more in their VK series development than Casio has, and they've probably paid more attention to the issue than Casio. Afterall Casio is more "consumer" oriented and Roland is more "professional"..

That said, I could create harmonic beating in my Nord C2!! It's possible to find it in almost every instrument IF you go the trouble of trying every possible combination of tones and C/V leslie effects.

One of the areas that it came up was when people started using the Ventilator with their clones rather than the built in sims. While the Vent is a much superior leslie simulator, people did start noticing this harmonic beating when using their clone with certain tone/effect combinations and the ventialtor. Fact is that it would be virtually impossible for vent developers to completely eliminate this effect. They simply wouldn't have the time to test every instrument and every combination of tone/C/V etc.. Furthermore, what might fix a harmonic beating on my Nord C2 might create harmonic beating on your Roland VK7.

If you are experiencing harmonic beating within your instrument, I would blame the developers of the instrument for not testing and dealing with it.

I would expect Roland to take more care in this area than Casio. That's all part of how Casio keeps it's costs down.

Craig