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Post subject: Effects help...
Posted: Fri Aug 20, 2010 7:39 am
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Does Fender have any documentation that defines what the effect dials do?

Most of them seem pretty standard. Forgive my ignorance, but it would really help if I had an explanation of how the following actually affect the sound...

Faser: LFO Shape
Step Filter: RESO
Vintage Trem: Duty
Flanger: LR Phase
Chorus: Average & LR Phase
Mono Delay: ATTEN
Echo Filter: RESO & Input
Multitap: Mode
Reverbs: Diffusion & Dwell

Thanks. :?


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Posted: Tue Aug 24, 2010 1:46 pm
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Any help here? :?:

IMHO, this this should have been part of the "Advanced" manual.


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Posted: Tue Aug 24, 2010 2:39 pm
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amen


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Posted: Tue Aug 24, 2010 7:04 pm
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This is the same request I've had in a couple of threads!

Could Loren or someone please enlighten us?!?

Thanks!
Bob


Last edited by bclarke675 on Wed Aug 25, 2010 11:39 am, edited 1 time in total.

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Posted: Wed Aug 25, 2010 10:13 am
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Hey Guys,

I'm working on getting that info for you now. Give me a day or so and I'll have it for you.

Loren


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Posted: Wed Aug 25, 2010 10:27 am
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thanks Loren


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Posted: Wed Aug 25, 2010 11:38 am
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Thanks, Loren! Hopefully Fender may consider adding to the Advanced pdf file with a lot of this information?!? :D


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Posted: Wed Aug 25, 2010 12:07 pm
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I'm looking forward to Loren's explanation of all the parameters. In the meantime, I have been researching REVERB on the net so I offer what I have read on the controls asked about:

These two explanations come from the Fender 63 Reverb manual

DWELL- "Adjusts the amount of signal sent to the reverb pan. At low Dwell settings (two to four) the reverb sounds much like a guitar played into a large room. At high Dwell settings (above four) the reverb signal will start to sound more “springy” or ‘twangy”."

[Other explanations refer to it as a bit like a 'gain' or 'sensitivity' control for how hard the dry signal hits the reverb tank and thus effecting how long the notes take to decay.]

TONE- "This control affects only the “wet’ portion of the signal and acts much like the treble control on a guitar amplifier. Turning the Tone control up allows more high frequencies through from the reverb to the mixer control."


This next explanation comes from an article on reverb by Mark Ottewill on the Planet of Tunes website

DIFFUSION - "The pattern or spread of the reverberation. A high diffuse reverb setting will produce a smooth and even sound. A low diffusion setting will result in a lumpy or semi-echoy sound."

[Some describe it as a measure of how many times the soundwaves can bounce off the various walls before absorption.]


The Audacity site has a great overall explanation of reverb effects
http://audacity.sourceforge.net/manual-1.2/effects_reverb.html
and of course Wikipedia has a detailed overview as well
http://en.wikipedia.org/wiki/Reverberation

Basically, sound reflects back to the listener multiple times and at varying rates of decay and delay as it bounces off the various walls. Remember that a reverb effect tries to duplicate the reverberation of sound in an walled space but the way it tries to duplicate this effect can cause its own artifacts. A spring reverb tries to duplicate reverb by taking an uneffected or "dry" signal and mixing it with a very slightly delayed signal (the effected or "wet" signal) made by running it through a spring.

Probably more than you wanted to know but hope this offers some help.


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Posted: Wed Aug 25, 2010 12:19 pm
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Interesting stuff, David. Glad you shared it here! I wonder if any of our other questions can be answered through any of these sources? I'm always on the search for a better understanding of how I'm affecting my guitar sound.


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Posted: Wed Aug 25, 2010 4:22 pm
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I was going to let you guys know that a lot of the questions you have about the effect parameters involve basic audio techniques and sound synthesis knowledge that doesn't only apply to G-DEC 3 effects, they apply to pretty much any piece of audio gear out there. I've been gathering some info on sites that you guys could take a look at that will explain a lot more than I could.
I could definitely explain what RESOnance and ATTENuation do to a certain sound but you would more than likely need further explanations to explain some concepts introduced in my explanation. Here are a few links that may help.
http://www.fortunecity.com/emachines/e11/86/synth1.html
http://audacity.sourceforge.net/manual- ... everb.html
http://audacity.sourceforge.net/manual- ... delay.html
http://audacity.sourceforge.net/manual- ... horus.html

Also, even though I could type answers to your questions until the cows come home, I guarantee you will find it more helpful to just turn the dials on those effects parameters and listen to how the sound is affected rather than read some very technical responses from me.

Loren
TSL@fender.com
480-596-7195


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Posted: Wed Aug 25, 2010 6:23 pm
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While I appreciate the reply, I don't quite understand the answer. Every effect pedal I have ever purchased comes with at least a little booklet that explains what each knob does. That's all I'm asking for here.

The links have some good general info, but still did not answer my questions for the following:

Step Filter: RESOnance (So are you saying the Step Filter acts like a synth?)
Vintage Trem: Duty ?
Flanger: LR Phase ?
Chorus: Average & LR Phase ?
Mono Delay: ATTENuation (what is it attenuating?)
Echo Filter: RESOnance & Input ?
Multitap: Mode (What are the "modes"?)

What is the "Resolver"?

I'm looking forward to a "more advanced" Fender FUSE manual. :)

Thanks.


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Posted: Wed Aug 25, 2010 7:13 pm
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I'd have to agree Loren, that sounds a bit of a cop out to me; the documentation that came with this amp was/is skimpy and everyone knows it. So, to understand this, Fender wants its users to look elsewhere for information on how to use its product? Or, am I just all wet, as usual.


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Posted: Thu Aug 26, 2010 5:52 am
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+1 on a More Advanced Manual

We do appreciate the links and efforts on your part, but if Line 6 and Vox can supply info as to what changes are made by each parameter and to what degree on their effects, why can't Fender? Some of the terms you use for adjustments on this amp are ones I've never seen on either my Vox or Line 6 units.

We're not looking for technical explanations of how and why these controls affect the effect settings, just layman's terms as to how they apply. Example: how much do you have to change the pitch control on the pitch shifter to be at a 3rd, 5th or 7th, or even a full octave up? And how does the Detune control affect that? Also, what's a resolver? What's the difference between a sine chorus or flanger and triangle chorus or flanger?

These are the types of things that need to be explained. You have a great product that would be even better if you could enlighten those of us who haven't spent most of our lives in a recording studio.

Food for thought and an opportunity to employ someone at Fender?!? (Help the economy and job market)

Thanks!!!
Bob


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Posted: Thu Aug 26, 2010 1:25 pm
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Hey Guys,

I apologize if you think my response is a cop out. I was simply trying to give you some reading material to look over while I gather the information you asked for. I guess I wasn't clear on that in my post. The idea was to give you some basic knowledge that will allow you to understand what some of these effects do and how they affect your sound. I suppose I kind of rushed through it a bit.

I agree that the information you want should be included in the amp's documentation. Since it wasn't, Alan and I will do our best to fill in the blanks and answer any question you may have. I'm actually working on explaining all of the G-DEC 3's effects. I will either post it as a sticky or release it as a PDF when it's finished. For now, please take a look at the information for the effects you asked about.

The Phaser effect combines the original signal with a copy that is slightly out of phase with the original. This means that the amplitudes of the two signals reach their highest and lowest points at slightly different times. For the most part, phasing is used to create those whooshing, sweeping sounds that wander through the frequency spectrum.
The Shape control selects the type of waveform the Phaser's LFO (low frequency oscillator) generates. This could be a sine wave or a triangle wave. Sine waveforms affect the signal in a more subtle way compared to triangle waveforms.

The Step Filter, like other filters, is designed to cut certain frequencies from a sound but unlike other filters it's designed to vary which frequencies are being cut for a specified amount of time at a specified rate. For example, a step filter can be programmed to cut 120hz for one second, then 400hz for one second, then 1.2kHz for one second, each time adding the previously cut frequency back into the sound.
The Resnnce (resonance) control allows you to "boost" or a little gain at the frequency is currently chosen. Increasing Resonance emphasizes the center frequency of the filter. Low settings result in a softer tone; high settings result in a sharper, brighter tone.

Vintage Tremolo basically modulates the volume of the signal being played though it at a specified rate.


A Flanger is typically used to add a spacey or underwater sound to your guitar signal. It's basically a very short delay who's output is fed back into the input signal. As the output is fed back in, phasing occurs. The LR Phase is used to adjust the amount of phasing that you want to hear.

A chorus is similar to a flanger. It's a short delay that has it's output modulated with an LFO and fed back into the signal. It's usually used to "thicken" a signal. With any short delay, some phasing usually occurs. The Average Delay control dictates how long the delay is set for and the LR Phase adjusts the amount of phasing that is audible to you.

The Attenuation control on the Mono Delay very subtly changes the way the delay tapers off.

The Echo Filters is exactly what is says it is, an echo and a filter. Increasing Resonance boosts gain at the center frequency. The input level controls how much of the filter is in the echo effect.

A MultiTap Delay utilizes more than the one or two taps that a stereo delay uses. The MultiTap on the G-DEC uses three taps. These different taps can be used to create very unique delay effects. The Mode control switches between different MultiTap configurations.

David Owen hit the nail on the head with his explanations of the Reverb Diffusion and Dwell controls. Thanks for the info David.

Loren
TSL@fender.com
480-596-7195


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Posted: Thu Aug 26, 2010 1:45 pm
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Loren,

Thank you and Alan for your efforts! We look forward to the new information when it becomes available.

If you can tell us what effects the ones in the G-DEC 3 are modeled from, we could do some research that way in the meantime.

Thanks again!
Bob


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