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What is the sustain here?

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case211  
4 Sep 2009 14:56 | Quote
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Ratio = (((Sustain/100) ^ 5) * 100 + 1)

okay, I don't know what sustain here. This is direct from Digitech regarding their flanger settings in the RP90 pedal that I own.
Please help someone, suggestions maybe.
Thanks
Casey
EMB5490  
4 Sep 2009 15:09 | Quote
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lol thts acctually kinda funny because for me sustain is just somthing i put on top of my tone to make my solos sound better. i practice with little sustain. and i dont think theres any math equation that can do this. its all what you hear and u think is right amount.
case211  
4 Sep 2009 16:09 | Quote
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i know that, but me being a tone perfectionist I like to experiment with really close settings on things. I don't know whether they mean sustain in the context of playing and holding a note, or something else. Because I don't count how long I hold a note, I'm usually not actually thinking about too much when I play.
This is what Digitech gave me to work with...I bet they are laughing right now.
EMB5490  
4 Sep 2009 18:32 | Quote
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yh im a complete tone perfectionist. but putting math equation on somthing like sustain is stupid. depends amps, pedals, guitar... fingers...
case211  
5 Sep 2009 02:08 | Quote
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that's not what the equation is for. The equation above is for the FLANGER settings, and i don't know what sustain might include here. Either the length of the notes i hold, or something else.
EMB5490  
5 Sep 2009 07:43 | Quote
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o i see. then i wouldnt understand it at all.
case211  
5 Sep 2009 10:02 | Quote
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lol neither do i. I am starting to hate digitech now.
EMB5490  
5 Sep 2009 10:28 | Quote
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ive always hted them. very digital pedals...
case211  
5 Sep 2009 10:57 | Quote
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yeah, but, I only use the EQ, delay, and maybe noise gate on mine. The amps, just don't sound very good to me, too bassy on the plexi model, too much treble on the JMP model. Finally I just said screw it. I haven't used a model on that pedal unless I needed to play late at night and not wake people up by putting headphones on and into the pedal.
patleh  
5 Sep 2009 11:05 | Quote
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Afro_Raven  
6 Sep 2009 08:03 | Quote
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Moderator
Casey - can you give me the actual link to where you got the equation from? If I can see it in context I might be able to shed some light on it for you. No guarantees though :)

Afro
case211  
6 Sep 2009 10:03 | Quote
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I actually got it from Digitech's support team, they sent me it in an email. :(
Afro_Raven  
6 Sep 2009 14:56 | Quote
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Well bollocks to it then.
jcb3000  
6 Sep 2009 19:30 | Quote
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what did the email say? i mean first guess would be note length (which is sustain in a nutshell)? but to be perfectly honest, if thats all they've given you then who knows?
patleh  
6 Sep 2009 19:38 | Quote
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sustain = waaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaah
case211  
7 Sep 2009 01:23 | Quote
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lol pretty much, but I don't get why they would do that. they just sent this:

Ratio = (((Sustain/100) ^ 5) * 100 + 1)
Make Up Gain (in dB) = 15 * (1 e ^ (1/5) * (Ratio - 1))

The Make up gain is something the engineers use.

WTF?!
they're laughing by now...
well, whatever, I'll let it go.
carlsnow  
7 Sep 2009 08:26 | Quote
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case211 not to dissuade you in your pursuit of tonal completeness..OR to 'put ya down' (at all)

B U T

@EMB5490
EMB5490 says:
im a complete tone perfectionist. but putting math equation on somthing like sustain is stupid. depends amps, pedals, guitar... fingers...


= Hammer, meet Nail, ...Nail, Meet Hammer!

It (tone) is at least 90% Finger generated.
I've toured/gigged since 1980 or so and i can say with absolute certainty that "it's (tone) all about the human"
IE: in these 30+ years i have seen almost every conceivable attempt at "tonal bliss / orgasm"
its odd but damn near true that 5 out 6 guitarists (not, musicians... but simply guitarists) lean on a barrage of pedal-this/that from basic Boss, MXR, etc, to *'Boutique' pedals (*over 500 a 'box') for their tone. its easy to see cause they are usually at the bar or in back smoking one WITHOUT a guitar-in-hand.
they most often fail... over processed and glib.
while , on the other hand you see the cat on stage , adjusting Vol, Rev and gain on a well worn amp with a well worn guitar.
this person will practice (can still smoke up but..) until his fingers are red, or its time to play.
no roadies, no tech, just a guy and a few old pedals, playing great melodies with deep rich tone.

now
not to piss ya off, case211 or make fun, (i'm trying only to help you-believe that) lemme ask you 1 quick question
what type of acoustic guitar do you practice on???
seriosly ..(and w/out malice)
case211  
7 Sep 2009 09:58 | Quote
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@cs
I actually use to own a couple of acoustics. Now, one of them I lent my brother because he wanted to learn how to play, but the entire face of the guitar almost came off. The other was a yamaha, nothing special, but it sounded pretty good. I left that in the hands of my dad during the move and I haven't seen it since my Sophomore year...:(
I'm not actually trying to increase my 'sustain' or figure out how it works. I am trying to figure out how my flanger setting works on my RP90, they told me it increases by the same amount each time, but the little x=sustain threw me off.
dsesh  
7 Sep 2009 14:23 | Quote
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why not just email them back asking what they mean
case211  
7 Sep 2009 16:38 | Quote
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i did, they haven't got back to me yet, but this is Labor Day weekend, so I'm still hopeful.


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