What is KVR Audio? | Submit News | Advertise | Developer Account

Options (Affects News & Product results only):

OS:
Format:
Include:
Quick Search KVR

"Quick Search" KVR Audio's Product Database, News Items, Developer Listings, Forum Topics and videos here. For advanced Product Database searching please use the full product search. For the forum you can use the phpBB forum search.

To utilize the power of Google you can use the integrated Google Site Search.

Products 0

Developers 0

News 0

Forum 0

Videos 0

Search  

Why can't I buy a 96 db hi/lo pass filter?

VST, AU, etc. plug-in Virtual Effects discussion

Moderator: Moderators (Main)

ashh888
KVRer
 
5 posts since 10 Feb, 2013

Postby ashh888; Sun Feb 10, 2013 11:55 am Why can't I buy a 96 db hi/lo pass filter?

For instance, using a 24db hi pass filter in GlissEq at 30hz, will also cut 5db at 50hz.

I don't want to cut anything at 50Hz hence the need for a sharper filter.

Thanks in advance
vata44
KVRian
 
1479 posts since 29 Jul, 2007

Postby vata44; Sun Feb 10, 2013 12:01 pm

I believe a guy called "easy toolz" or something has a scientific filter that can make a solid filter wall from any point. It is Free... but I do not remember where to find it.
Ah_Dziz
KVRian
 
1261 posts since 2 Jul, 2005

Postby Ah_Dziz; Sun Feb 10, 2013 12:01 pm

fft processing will give you the steepness you want. It won't sound good though. those ultra steep filters generally don't. There was some free thing that would let you do ridiculously steep filters floating around. It might have been rubber filter.
Don't F**K with Mr. Zero.
Ah_Dziz
KVRian
 
1261 posts since 2 Jul, 2005

Postby Ah_Dziz; Sun Feb 10, 2013 12:03 pm

yep rubber filter. up to 384dB/octave. If that's not steep enough, nothing will be
Don't F**K with Mr. Zero.
manvanmars
KVRist
 
61 posts since 9 Jan, 2011

Postby manvanmars; Sun Feb 10, 2013 12:03 pm

Yes, rubber filter and Rs-met engineersfilter or something similar....
User avatar
djscorb
KVRist
 
365 posts since 3 May, 2007, from UK

Postby djscorb; Sun Feb 10, 2013 12:20 pm

Steeper filters are just multiple stacked filters so if you want 96db just use two 48db with the same settings.

DMG Audio Equick has 32 bands I believe, so if you really want you could have 1536 db per octave slope. Don't count on it being either useful sounding or very cpu friendly though.

As mentioned these really steep filters seldom sound great unless you want to go for that effect. I remember the old GRM tools bandpass was a good example. Even without large Q settings, very steep filters draw attention to the frequency at which they start to attenuate almost as if they have a high resonance. They also tend to add a lot of ringing and tail to the sound which isn't usually desirable.

One thing you might want to try is to use a 48db HPF filter slightly higher than you want with a q of 0.71 and then add a bell slightly lower and play with the boost amount and q to "fill in" the freqency you are losing a little too much of.

Hope that helps :)
ashh888
KVRer
 
5 posts since 10 Feb, 2013

Postby ashh888; Sun Feb 10, 2013 12:41 pm

my workaround has been :

in Waves Q10, position 10 band pass filters starting at 1 Hz with the last at 30 Hz with a hi Q and maximum volume reduction.

Not noticed any reduction in quality. Thanks for your replies.
User avatar
cyphersuit
KVRAF
 
2156 posts since 12 Nov, 2009

Postby cyphersuit; Sun Feb 10, 2013 1:59 pm

Iirc Vengeance Philta XL should be what you are looking for.
Finally!
kvaca
KVRian
 
784 posts since 30 Oct, 2005

Postby kvaca; Sun Feb 10, 2013 2:14 pm

its not very funny guys - OP wants sharper hp filter but ALL of you are recommending him steeper filter :x
...
or am I missing something?...:shrug:
kvaca
KVRian
 
784 posts since 30 Oct, 2005

Postby kvaca; Sun Feb 10, 2013 2:28 pm

Ah_Dziz wrote:fft processing will give you the steepness you want. It won't sound good though. those ultra steep filters generally don't. There was some free thing that would let you do ridiculously steep filters floating around. It might have been rubber filter.


but as far as I can understand him he wants sharpness and ONLY fft will give hime what he wants...and it will sound good IF he dont need ultra steepness sametime... :wink:
overhishead
KVRist
 
151 posts since 21 Jan, 2007

Postby overhishead; Sun Feb 10, 2013 2:40 pm

ashh888 wrote:For instance, using a 24db hi pass filter in GlissEq at 30hz, will also cut 5db at 50hz.

I don't want to cut anything at 50Hz hence the need for a sharper filter.

Thanks in advance


what DAW, what eq are you using now.
User avatar
dalor
KVRAF
 
2508 posts since 1 Dec, 2004, from Sydney, Australia

Postby dalor; Sun Feb 10, 2013 2:45 pm

Just note asymmetrical waveforms when using non linear low pass filters, especially when they're steep (e.g. above 24db). It highly depends on the source material.
Cowbells!
kvaca
KVRian
 
784 posts since 30 Oct, 2005

Postby kvaca; Sun Feb 10, 2013 3:03 pm

ashh888 wrote:my workaround has been :

in Waves Q10, position 10 band pass filters starting at 1 Hz with the last at 30 Hz with a hi Q and maximum volume reduction.

Not noticed any reduction in quality. Thanks for your replies.


ohh,Ive overlooked this is your post...so you actually wanted steepness instead of sharpness?...so why youve asked for sharper filter?,this I dont get :o

edit-your post is still full of nonsense,becouse you actually cannot set hipass filters in Waves Q 10 starting at 1 Hz...
Last edited by kvaca on Mon Feb 11, 2013 3:41 am, edited 1 time in total.
AlienForce
KVRist
 
164 posts since 9 Sep, 2005, from Amsterdam, Holland

Postby AlienForce; Mon Feb 11, 2013 3:05 am

ashh888 wrote:For instance, using a 24db hi pass filter in GlissEq at 30hz, will also cut 5db at 50hz.

I don't want to cut anything at 50Hz hence the need for a sharper filter.

Thanks in advance


http://www.meldaproduction.com/plugins/ ... =MBandPass

I guess these are butterworth filters. They are sharp. Just what you need.
User avatar
strayboom
KVRist
 
132 posts since 4 Nov, 2011, from Babylon 5

Postby strayboom; Mon Feb 11, 2013 3:23 am

built-in fft filter in adobe audition 3 ftw! :)
it's not realtime but i often use it to cut everything under 25-30hz.
Next

Moderator: Moderators (Main)

Return to Effects