USB Whine FIltering (Yeti Curse)

[steve]

I don't mean it doesn't work very well. I mean it returns an error code.

If you can post it, or link to it, I can take a look.
The usual problem with experimental code is that it's often written for mono tracks only.

[kozikowski]

Not worth it. My goal was to collect instances of Yeti Curse solution. I was impressed with the massively different solutions for what appeared to be the same problem.

Koz

[Trebor]

New & improved : asks how many notches to apply ...

[steve]

New & improved : asks how many notches to apply ...

You're right, you should really check that the Nyquist frequency isn't exceeded.
Also, there's no need to use an additional variable for the track audio, you can use *track* directly.
Here's an example of how you might do that:

Mosquito-Killer3.ny

(361 Bytes) Downloaded 51 times

Also, do we know that the Yeti Curse is always on a base frequency of 1000 Hz?

[kozikowski]

Also, do we know that the Yeti Curse is always on a base frequency of 1000 Hz?

I think there was one instance that didn't start with 1000. But then, we weren't entirely sure the damage was caused by USB leakage, either.

There is a known mechanism for the standard problem. Apparently, 1000Hz USB management goes pounding down the lines as an unbalanced (sloppy) data stream. It's not a precious service compared to the actual data. USB Battery is also unbalanced. The common shield and the close proximity of the two wires just cries out for radiation leakage.

Any poor power management goes straight into the sound as frying mosquitoes. I think flynwill did the legwork on that when a microscopically small version of the noise showed up on a UCA-202. His UCA-202 runs from a small lab power supply plugged into the wall instead of the USB battery. His mosquitoes went undetectable when he did that.

I don't know if anyone has done inspection with USB3.

Mosquito-Killer3.ny

I'm pleased REV is making it into the filename.

How high up do the notches go? I've never seen damage go past 8000Hz, and there was only one posting with that.

Given all this trash is harmonics and overtones of 1000 and given the "legacy" code pulls out 3000 and 4000 (infant screaming on a jet) how much do you realistically need?

Koz

[Trebor]

Mosquito-Killer3.ny

... How high up do the notches go? I've never seen damage go past 8000Hz, and there was only one posting with that ...

Selecting 8 will notch up to 8000Hz ...

Demo of 'Mosquito-Killer3' on white-noise.gif (1.51 MiB) Viewed 918 times

[kozikowski]

Selecting 8 will notch up to 8000Hz ...

Yes, I got that and yes it does that. I'm in the blizzard of what could go wrong.

Really 16 notches? We are curing an acoustic phenomena, right? 16000 is higher than FM radio. Can you hear 16000? 16th harmonic of nearly inaudible 1000 leakage comes out to.....not significant?

My effect woke up at 5 notches. I think that's a rational number. How do I get back to default if I forget? Right this second, mine thinks I want 16 forever. The middle of the slider is 9.

How do we tell a user the method of choosing their own number? Both Analyze > Plot Spectrum and Spectrogram Display are obscure/magic diagnostic tools. To make the problem recursively worse, how sophisticated is the average owner of an affordable USB microphone?

How would you even know you have the Yeti Curse to apply the tool?

Taking this upside down, what's wrong with 16 notches forever? Why set it at all? Notch Damage gets progressively less audible as you go up, and remember chances are good we're solving someone's ACX rejection. Anything we do is better than what they got. Here, apply this filter-with-no-adjustments to make that whine go away. Boop. Gone. Submit for publication, make a mint and retire to St Tropez.

Is this something to hold in the forum quiver against people showing up with USB Whine? That would work. It would still be good to get back to graceful, default number of notches.

Koz

[kozikowski]

Found the default just as I was shutting down.

Koz

[Trebor]

what's wrong with 16 notches forever?

the more notches are applied, the more ringing artifacts are generated on transients ...

click on this image to see it in its entirety

2 notched (top) Versus 8 notches (bottom) - more notches more ringing.png (13.06 KiB) Viewed 912 times

If you want to squeeze-out the optimum-quality, use the least amount of notches.

[steve]

How do I get back to default if I forget?

"Manage > Factory Presets > Defaults"

Try that with other effects too.