Fendicator
Hey Danni, I am not sure if it is my DOD pedal, I have no effects going thru it, it's just set on a clean slate with max volume. I found the harsh points (or what I consider to be harsh) by setting my Q to 12.0, +15.0 DB then just moving around the frequency. I can hear the difference between smooth and harsh frequencies by doing this, for instance 4100 can sound smooth to me then 4200 starts to be ear piercing then 4300 can be unbearable, then moving thru to 4600 it can sound smooth again. Now, is this a good way to do it? That I don't know, but that's what I did.
I also just tested using a lowpass filter set to 7500 with a Q of 0.60 and it helped in the same way.
Yeah you're doing the right thing by moving things around and then adjusting. We just have to get to why you're getting the harshness to begin with. It's good that you can dial it out the way you're doing it or the way I told you with the low pass. The differences between the two ways are:
Your way, you can take care of the issue with a bit more pinpoint accuracy.
My way we're taking your highest frequency point and dropping the level all the way down to 7500 like you did. This takes all the frequencies above 7500 out a bit more resolving some of the harshness. My way adjusts more frequencies at once. In turn, you may affect frequencies that you DON'T want taken out completely.
So your way is the better way, but let's talk about a hybrid which I feel would be the over all best way.
Most times, (depending on the sound) you're probably not going to want much 6k (6000) on up to 8k (8000) in a guitar tone. However, there are times where you may want just a little sizzle at 10k (10,000) up to 12k. (12,000)
We call those (10k to 12k) the presence frequencies...some refer to them as "air" frequencies if you use a narrow Q and are careful with them. The can add just a little sparkle to a tone...but most times, you won't want them in there. See, it all depends on what the tone sounds like before you touch anything, know what I mean?
We don't just want to low pass down to 4k if the guitar tone in question is LACKING 4k. So you have to sweep through like you're doing. What I like to do is the hybrid method. Low pass until you get the majority of the harshness out of the tone. Then look for specific frequencies to remove (or sometimes boost a bit if need be) that will sweeten up the tone even more. This way you're removing the sizzle from the upper end of the spectrum with the low pass and then you're dialing in (or out) the other frequencies manually so that you don't just kill all the good stuff with the low pass.
Most guitar tones start to accentuate highs to where you hear treble at 2k to 5k. They are the prime frequencies that give guitar that presence/treble/sizzle to cut through. Anything over 5k is usually too sizzly and airy sounding, but can also help a tone depending on what it sounds like coming out of the gate. See, that's the hard thing about this...each tone is different and you'll need to evaluate it differently each time unless you hone in on something for yourself and use the same tone consistently. You'll still need to make a few changes, but they will be minimal.
The best thing to do Fender, is to make sure this harshness isn't even there before you even record. Though we have incredible tools to fix things in the mix these days, it's really not the right way to do it. For example, take guys like bats, Chuck and bitflipper who have given you awesome tone advice. When they record something, the sound they put in is usually not altered to the point of "ok, this no longer sounds like the sound I recorded" unless they are manipulating a sound purposely.
What you record as a core tone.....is what you should have for the most part. Granted, we have to fit each tone we record to the mix we are working with...but it should be minimal. Those guys know that they need to remove any excessive low end from the guitar before they record it. So they will make sure the mic they use or the way they are capturing the guitar, does not contain artifacts that would drive them crazy in a mix.
Even there though, sometimes we all fail. We can record the greatest guitar tone known to man....and sometimes have a problem fitting it in a mix. This is where knowing about good tones and not so good tones can help you immensely. So much so, it can save you hours, days, weeks of time. When you have your low end, your mids and your highs under control before you record, it will ALWAYS make for a good tone that is easy to work with inside of a mix.
So definitely try to do a process of elimination and find out where this harshness is coming from. Maybe it's not the DOD, but try with and without....do some experimenting and keep the things I said in mind in my last post. I still think it's in the cab sim you are using because a lot of them are VERY fizzy sounding and unrealistic. Some are killer, but the ones that are killer, you either have to search for or pay for. Redwirez has some really nice cab impulses that are worth checking out.
http://redwirez.com/ Good luck man, I hope some of this stuff points you in the right direction and remedies your issues. :)
-Danny