Techniques for extracting single cycle waves

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Hey all, I'm currently playing around with recording some sounds - like static tones from a soft synth and trying to extract a single cycle wave from the sound.

I plan to bring those cycles into synths like Nemesis as a single cycle for the osc or Serum or Hive to build wavetables from them.

What I'm doing currently is recording the sound using Edison in FL, and then zooming in close and dragging to highlight a single cycles as close as I can and cropping that and exporting it as a single cycle wav. I have recorded a C4 and then when I bring that .wav into Nemesis and Serum it fits nicely in as single cycle/frame (when I set the formula in Serum to C3).

However the technique I'm doing feels a bit cumbersome/clumsy - I was wondering if there are any tools to help with this sort of task!

Many thanks!

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Actually, I found Edison in FL has a "Snap to Zero-Crossing" mode for the snapping which helps a lot!

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Was going to say exactly this, lots of samplers have a 'snap to zero' which is very helpful for making good loops. Even then you should scrub around to find the best alignment to samples you can. In principle there are certain pitches that will best match the sample rate so the cycle fits perfectly. Some relevant discussion here: www.kvraudio.com/forum/viewtopic.php?t=147480

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imrae wrote: Sat May 04, 2019 3:23 pm Was going to say exactly this, lots of samplers have a 'snap to zero' which is very helpful for making good loops. Even then you should scrub around to find the best alignment to samples you can. In principle there are certain pitches that will best match the sample rate so the cycle fits perfectly. Some relevant discussion here: www.kvraudio.com/forum/viewtopic.php?t=147480
Thanks for the share, I'm going to have a deep read later on!
This is the first time I'm trying this type of thing and was wondering what the best approach is (I'll probably find the info I need in that thread).

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After reading the thread I found if I play an F1 and detune the synth (Qyooo to -30 for instance) then the cycle ends up being exactly 2048 samples. When I tried capturing the sound at C4, it was only around 337 samples!

The benefit of being 2048 samples I can put '2048' as the formula in Serum and get an exact frame - which gives much better quality than dragging it into the FFT 2048 bin!

Note that in Serum when setting the formula to '2048' samples, it says:
split at: 2048 samples (22 Hz, note: F-1 and -22 cents)

I'm attaching how the frame looks in serum, look how crisp it is, it sounds very crisp/clean (because I played such a low note and it had the extra harmonics/sidebands I'm guessing).
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Very nice! Keep in mind that if you are sampling from a low note and pitching up then it is up to your sampler to avoid aliasing. I imagine Serum can handle this?

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