filter cutoff to frequency

Does anyone here know what do numbers on filters(in program menu) mean?
I usually cut an 808 sample using lowpass at 10, and I was wondering how many Hz is that?

You answered your own question.

It can't be. You can't hear what is under 20Hz. And when I am cutting with a lowpass at 10- I still hear the sound!
The hi pass would be also useless if it was only able to cut up to 100Hz. So the numbers are not Hz's. So what the heck are they?

Darm wrote:It can't be. You can't hear what is under 20Hz. And when I am cutting with a lowpass at 10- I still hear the sound!
The hi pass would be also useless if it was only able to cut up to 100Hz. So the numbers are not Hz's. So what the heck are they?

I always assumed they were a scaled percentage.

That made me curious, of course you should tweak the cutoff by ears, but i wanted to know. So i loaded a noise sample, pulled up the resonance of lp2 and recorded with cutoff 100, 90, 80 ... and heres the result:


Cutoff settings are 100, 90, 80 ... from left to right, obviously, the frequency in hertz is shown at the scale to the left in logarithmical graduation.

rinseout? how can it be?
I really can hear the bass sample, when I cut it at 10. And it can't be 10 Hz.
Speakers just can't produce a sound that low!

Looking at rinseout's pic, if you have your cutoff at 10, it seems the cutoff frequency would be around 500hz or 300hz (not sure from the pic).

The stripes didnt fit the screen so the one for 10 is missing.
I made another one with better (whiter? ok not funny ) noise, 100, 90 .... 10 from left to right.

So freq for a cutoff 10 would be around 70, if you take the middle of the resonance´s freq range. Hope that helps

There is a conversion table floating around for this somewhere. I've seen it, but can't fin it now. Anyone have it handy?

Conversation table? Yep! That's exactly what I need!
I couldn't find it thought(

Does anyone have the conversion table. I'm trying to understand the filters a bit better.

Thanks.

Rinseout, what program are you using in those screenshots?

Those are screenshots of spectrapro.

I´m not so into the numbers thing, trust your ears not the numbers, but you guys got me curious so i made a formula to convert the value into the cutoff freq:

0.74*(cutoff value in the mpc)² = cutoff frequency in hertz

The 0.74 is estimated roughly from the picture.