LFO-controlled Auto Wah

Thunderscreech · #1 08-26-2008, 03:08 PM

What I am looking for is an Auto Wah that uses an LFO to control the sweep. Like a treadle that rocks back and forth on it's own, sorta.

I know EHX built one into the Frequency Analyzer, but I don't want the rest of that pedal for the one effect.

Does such a thing exist? A search of the effects forum was inconclusive.

GeoffByrne · #2 08-26-2008, 04:02 PM

The big Digitech MultiFXs can do that - I have a brain-damaged GNX-1 that mostly works, and you can set that up on it.

JanusZarate · #3 08-26-2008, 04:06 PM

Wait, doesn't an autowah use an LFO, by definition?

If it didn't, it'd be an envelope filter.

The two are often mixed up and/or grouped together. But in discussions around here, at least, auto-wah pedals are LFO-based, and envelope filters can sound similar, but are not LFO dependent - they respond to playing dynamics, instead.

OriginalCrash · #4 08-26-2008, 04:51 PM

Well, I don't know that Wikipedia can safely be considered an authority on the subject, but it says that an auto-wah is controlled by either an envelope filter or an LFO, with the envelope filter probably being the more common. The example it gives of an LFO-controlled is the Boss AW-2. Hope that helps...

Brian

JanusZarate · #5 08-26-2008, 04:57 PM

Yeah, I saw that. Wikipedia broadens the concept of an auto-wah to include circuits which feature envelope followers and not LFOs. But at least around here, the trend is to treat LFO-based and envelope-based ones separately.

It's an issue of semantics, but at least when it comes to searching for info on TB, using simply "autowah" or "auto-wah" should be good enough to find info on just the LFO-based stuff.

Higgie · #6 08-26-2008, 06:17 PM

The AW-2 does do this, but my experience was a huge drop in low end. The MXR Bass Auto Q is the best you can get for the money! Fantastic pedal that can be an envelope filter OR an auto-wah. I've bought and sold 2 of them in the past - I love the pedal, but just never can find a use for it so have had to sell it on both times.

seventhson · #7 08-26-2008, 07:42 PM

jacques trinity will do autowah (LFO), envelope, and foot controller wah.

Thunderscreech · #8 08-26-2008, 08:27 PM

Okay. That really clears things up. I've had it explained to me 4 different ways by GC employees, and people at my local music store didn't really use those types of effects much (and we don't have a big demand, what with the scene being bluegrass, folk music, reggae, blues, and indie kids), so it wasn't really clear to begin with.

I also need to remember the Search function is only as good as the words put into it...

squarewave · #9 08-26-2008, 08:35 PM

Guyatone ULTRON.

StoutXXX · #10 08-26-2008, 08:38 PM

I have a pigtronix LFO/Envelope phaser and I control LFO speed with an expression pedal. SO speed of the LFO for the auto wah is what your going for?

Thunderscreech · #11 08-26-2008, 08:47 PM

Quote:

Originally Posted by StoutXXX

I have a pigtronix LFO/Envelope phaser and I control LFO speed with an expression pedal. SO speed of the LFO for the auto wah is what your going for?

Exactly. Like a phaser, but with frequency sweep. I suppose i might be able to make some sort of frankenpedal mod or something...

Lapicide · #12 08-26-2008, 09:53 PM

The Electro Harmonix worm has what you describe. Can be found for about $100 US.
"Modulation madness! The Worm is an all-analog multi-effects processor featuring Phaser, Tremolo, Vibrato, and the never-before-heard Modulated Wah. At the heart of The Worm is a specially designed tone-bending engine which creates groundbreaking oscillatory effects."

......Lapicide

Lapicide · #13 08-26-2008, 10:54 PM

Might also check out, http://www.subdecay.com/pm.htm
I too have been interested in a modulated wah. As just above I mentioned the EHX Worm, which I have and like for it's versatility and price. I have been looking for possibly a little more control in the modulated wah area. There was a copilotfx gyroscope listed on the buy adds. I haven't been able to find out much about it, other than a modulated wah. I searched a bit more and found the subdecay prometheus. I'm curious to personal experiences with it. Please post if/when you do go with something. Thanks......Lapicide

funkalicious101 · #14 08-26-2008, 10:59 PM

My Subdecay Quasar with the feedback knob past noon is a very good auto-wah.

bigchiefbc · #15 08-27-2008, 06:35 AM

I seem to remember people telling me that the MXR Auto Q does this

JES · #16 08-27-2008, 07:09 AM

Pigtronix phaser does exactly this. Also you can set up the Chunk Systems unit that way, and a lot of the higher end envelope effects have an envelope in that you could connect to an LFO for some sick sounds.

shineofleo · #17 08-20-2009, 02:54 AM

So I searched and dig this up:

Any good advice for choose an LFO-controlled wah?

Actually I want to add a delay before the wah , to create something, well, "won't get fooled again"-ish feeling stuff.

Please, enlight me!

Thunderscreech · #18 08-20-2009, 08:12 AM

You know what, when I posted this thread, I didn't know what I was talking about.

An auto wah is just what it says. It's automatic, not envelope controlled.

I was but a n00b when I did this.

shineofleo · #19 08-20-2009, 08:53 AM

But what you said was exactly right: Auto wah is not triggered by envelope, or foot pedal, so it must be controlled by oscillator.

Can I ask if you found what you were looking for then?

Thunderscreech · #20 08-20-2009, 02:01 PM

Quote:

Originally Posted by shineofleo

But what you said was exactly right: Auto wah is not triggered by envelope, or foot pedal, so it must be controlled by oscillator.

Can I ask if you found what you were looking for then?

MXR's Bass Auto Q.