How Come We Never See Any.........

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-- How Come We Never See Any.........

Posted by Phantax on May-02-2004 10:37:

How Come We Never See Any.........

HFO's?

LoL

Posted by Damie Mckeown on May-02-2004 11:45:

because we would here it moving, like a notch filter i think

Posted by hey cheggy on May-02-2004 16:25:

I already have tinnitus. That's enough high frequency oscillation for me

Posted by Phantax on May-02-2004 16:31:

^ lol

ok, what about MFO's then?

and I'm not talking about mother fuckin oreos neither.

Posted by Dj Thy on May-02-2004 16:35:

The actual oscillators that produce sound (osc 1, 2 etc... in a synth) ARE high frequency oscillators. A high speed oscillation creates sound. That's why LFO's are distinguished from "normal" oscillators. Their movement is too slow to create sound. Usually we say that the human hear is capable of hearing from 20 Hz and upwards (to 20 kHz). An LFO usually oscillates with a frequency below 20 Hz.

But some synth manufacturers have made LFO's that are fast enough to produce some kind of sound. If you modulate another oscillator (pitch mainly) with such an LFO, you get ringmodulation. So that's the explanation why some LFO's can do ringmod stuff...

Posted by Tranc3 on May-02-2004 19:09:

As the person above me said, HFOs are also known as sound generators. Additionally, taking a HFO and linking it to the amplitude and/or frequency of a LFO will produce sound...known as AM and FM synthesis.

Posted by Pjotr G on May-02-2004 19:45:

ummmm, in synthesis the difference between LFO's and oscs doesn't really matter much. In modulars you can use normal oscs as LFO's too.

And FM is if you control the pitch/frequency of an osc with another osc (or LFO)

AM is if you control the VCA with an osc (or an LFO)

All an osc does is produce voltages that fluctuate....the beauty of it all is that there's no difference between audio signal and control voltages....yeah....

Posted by Jay M on May-02-2004 22:06:

Cool, these few pieces fit perfectly in this big puzzle. But still a dummy.. what does VCA stand for?

Posted by Tranc3 on May-02-2004 22:45:

quote:
Originally posted by Jay M
Cool, these few pieces fit perfectly in this big puzzle. But still a dummy.. what does VCA stand for?

Voltage controlled amplifier I believe

Posted by AaroNoct on May-02-2004 23:20:

quote:
Originally posted by Phantax
^ lol

ok, what about MFO's then?

and I'm not talking about mother fuckin oreos neither.

hahaha MFO's! I need to get me some MFO's and dip them in some MFM (mother f_ckin milk)

Posted by Phantax on May-02-2004 23:23:

LoL