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Author Topic: What causes the overtones on this pure sine wave?  (Read 2701 times)

Vim Doozy

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What causes the overtones on this pure sine wave?
« on: July 26, 2018, 12:02:29 pm »
Hey guys

Just wondering what causes the overtones on this pure, unfiltered sine wave at 440 Hz. I can't see any mention of aliasing in the manual, which is what I'm guessing it is. DAC Res is set to Modern.

DX7 V top, Ableton Operator bottom:

https://www.dropbox.com/s/ok3r5rgkhu1bgit/Arturia%20DX7V%20vs%20Ableton%20Operator.png?dl=0
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Matt Arturia

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Re: What causes the overtones on this pure sine wave?
« Reply #1 on: July 26, 2018, 03:22:23 pm »
Hi,

Even in Modern DAC Mode, we are still emulating the behavior of the old chip of the original hardware, hence the aliasing that you can see on your spectrum analyzer.

Regards,

Matthieu
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Vim Doozy

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Re: What causes the overtones on this pure sine wave?
« Reply #2 on: July 27, 2018, 04:27:14 am »
Thanks for the quick response Matt.
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