Why have LFOs?

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Why have LFOs?

Post by thetwlo » Wed Nov 18, 2009 10:53 pm

I always thought is was that they were so much cheaper than VCOs but then a great LFO like the uLFO come along and while it's all i asked for in an LFO!!! and with those features it's the cost of a VCO. So why can't VCO's be slowed down to super slow drone jobs just as easily and double as an LFO?

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Post by suboptimal » Wed Nov 18, 2009 11:02 pm

The uLFO is a LFO that can do audio ranges well. Other VCOs are audio range OSCs that can do low frequencies well. Where's the problem? :hihi:

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Post by thetwlo » Wed Nov 18, 2009 11:07 pm

no problem, the uLFO is my ideal of the perfect LFO, but why can't we save space and have an extra VCO switched to super slow to achieve these things? I guess it doesn't matter much but VCOs get a lot more money for tracking and shit. So if you have great VCOs why would you want an LFO? cost is the only thing that comes to mind. I have close to 30 modular VCOs but most don't have a switch to go to LFO!! it would be so nice if they did. But why have a separate LFO? can a VCO design not go slow enough?

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Post by ignatius » Thu Nov 19, 2009 12:39 am

modcan dual LFO can also be a simple AD envelope. it's nice to have dedicated LFO modules w/a different set of features as well as VCO's that go into the LFO range and LFO's that go into the audio range. the more the merrier.

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Post by REwire » Thu Nov 19, 2009 1:44 am

If someone can build a VCO/LFO with multiple outs, PWM with an attenuator, a linear and exp FM input each with attenuators and a dedicated 1v/oct input confined to 8hp - then we won't need LFO's.

I doubt the Polivoks 8hp VCO will have all that. The uLFO is 14hp, I can't fit 5 or 6 of those in my modular like I have MFB Duals (8hp) and Plan-B M37's (4hp).

If most LFO's were 12-14hp, then that would be a serious question.

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Post by wetterberg » Thu Nov 19, 2009 2:03 am

a VCO that can do LFO
an LFO that can do VCO
- same difference, if you ask me. Obviously if you're looking for something really compact then the 14HP uLFO might be too big, I just don't feel that way at all. It is like the AFG of LFOs.

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Post by breakscience » Thu Nov 19, 2009 9:18 am

wetterberg wrote:It is like the AFG of LFOs.

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Post by dougcl » Thu Nov 19, 2009 10:33 am

It's great to have an LED on an LFO to indicate what the control signal is doing. Most VCOs don't have LEDs. I agree, once you start packing an LFO with functionality, you tend toward a VCO. One significant exception (beyond LEDs) is the presence of an output offset like the Cwejman PH-4 has. This is an extremely useful feature in an LFO, but it has no place on an audio source. I can't remember if the uLFO has an output offset.

On the other end of the spectrum is the Doepfer A-143-3 quad LFO, which is incredibly useful but lacks pretty much everything.

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Post by anselmi » Thu Nov 19, 2009 10:48 am

the m37 can do both LFO and VCO in a very compact format
of course you lost some features of more advanced LFOs/VCOs but at laast it got sync and some people said it sound close to an M15 in audio range

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Re: Why have LFOs?

Post by bwhittington » Thu Nov 19, 2009 10:50 am

thetwlo wrote:So why can't VCO's be slowed down to super slow drone jobs just as easily and double as an LFO?
Roger Arrick? Is that you? :hihi:

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Post by Yohda » Thu Nov 19, 2009 10:51 am

I often use my Cwejman D-LFO as a VCO and I often use my VCO as LFO too.

The zeroscilator is the craziest LFO I have ever try! It even has a LFO switch.

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Post by kopplog » Sat Nov 21, 2009 2:07 am

didn´t want to make up a new thread for this little Q:

has anybody had a MFB DualLFO?
how about it and is it good?

thx! k
latest release:http://snd.sc/10eINjc...
Yeah, it´s music free for download! Enjoy!!!
JFYI: Drums&ChapmanStick, no overdubs

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Post by DGTom » Sat Nov 21, 2009 2:19 am

Firm fav. here :tu:

I have 2. Lots of power in a little package. Doesn't go very hi. freq. but has everything else you could want, voltage control, reset & some cool extras.

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