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High Pass Filter Settings
Posted: Wed Oct 12, 2005 3:53 pm
by tcatzere
Earle,
I'm currently working on a project with a real nice big bass bottom end. I have already shelved it slightly at about 45Hz. However, there still seems to be some subsonic rumble and muddiness. I thought maybe I would use a high pass filter to remove some of that, but I wasn't sure what the best setting would be in order to preserve that big full (almost movie theatre) sound -- 35Hz or maybe 40Hz?? There's probably some "standard" threshold for this, but I'm not sure what it is. Thanks.
Tom
Re: High Pass Filter Settings
Posted: Wed Oct 12, 2005 10:12 pm
by har-bal
tcatzere wrote:Earle,
I'm currently working on a project with a real nice big bass bottom end. I have already shelved it slightly at about 45Hz. However, there still seems to be some subsonic rumble and muddiness. I thought maybe I would use a high pass filter to remove some of that, but I wasn't sure what the best setting would be in order to preserve that big full (almost movie theatre) sound -- 35Hz or maybe 40Hz?? There's probably some "standard" threshold for this, but I'm not sure what it is. Thanks.
Tom
Hello Tom
Try (18 dB/Oct) and sweep from 40hz until the rumble disappears.
Earle
Posted: Sat Oct 15, 2005 3:46 pm
by tcatzere
Hi Earle,
With this procedure, are you suggesting a sweep using a Q of about 1.4 (one octave)? If so, is it possible to find the offending frequencies with a Q this broad?
Tom
Posted: Sat Oct 15, 2005 4:12 pm
by har-bal
tcatzere wrote:Hi Earle,
With this procedure, are you suggesting a sweep using a Q of about 1.4 (one octave)? If so, is it possible to find the offending frequencies with a Q this broad?
Tom
Tom
You are sweeping with a high pass filter from 45hz >
You don't need to determine a Q
Earle
Posted: Sat Oct 15, 2005 4:29 pm
by tcatzere
Sorry about that Earle. I assumed you meant a sweep with a parametric equalizer.
Tom
Posted: Sat Oct 15, 2005 4:44 pm
by har-bal
tcatzere wrote:Sorry about that Earle. I assumed you meant a sweep with a parametric equalizer.
Tom
Tom
If you engage a high pass filter using a parametric equalizer the Q would be dis-engaged anyway. You would only be able to sweep the frequency
Earle
Posted: Wed Oct 19, 2005 9:32 pm
by tcatzere
Earle,
By its very nature, would the judicious use of a high pass filter on material that has a fairly substantial bottom end tend to add a little clarity and definition to vocals?
Tom
Posted: Wed Oct 19, 2005 9:41 pm
by har-bal
tcatzere wrote:Earle,
By its very nature, would the judicious use of a high pass filter on material that has a fairly substantial bottom end tend to add a little clarity and definition to vocals?
Tom
It would be comparable to removing a veil. You would be surprised how a mix can be clouded by too much low end. Its different if you are specifically looking for that sound like the style "drum and bass" or some forms of rap or techno with pronounced sub-sonics.
Just as we discussed earlier it is best to start at 45hz and slowly sweep back and forth until the bass is nice and round...no longer muddy.
Cheers
Earle