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Subsonic filter plugin for Foobar (VST okay)

post #1 of 9
2/12/12 at 9:56pm
Thread Starter 

Hello,

I'm just curious if anybody knows of a decent subsonic filter for Foobar or a VST plugin since I use George Yohng's VST wrapper. 

It appears that GlissEQ VST would work, but I was hoping for something free and simple.

Thanks!

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post #2 of 9
2/12/12 at 10:20pm
How do you define subsonic? Electri-Q works down to 20Hz (I would assume that any boost / cut you apply at 20Hz affects frequencies below that equally)
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post #3 of 9
2/12/12 at 10:57pm
Thread Starter 
Quote:
Originally Posted by Joe Bloggs View Post

How do you define subsonic? Electri-Q works down to 20Hz (I would assume that any boost / cut you apply at 20Hz affects frequencies below that equally)


That's actually what I'm worried about.  I don't know if it does or not. I would just use Electri-Q if it extended below 20Hz because it would be easy to make an appropriate filter. 

Specifically, I would like to apply a steep (probably 24, 36, or 48dB/octave) high-pass filter somewhere around 18-23Hz. 

My Velodyne Minivee 10 is rated to down to 23Hz.  I can hear it down that low with test tones, but I really don't want to go much lower for most music.

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post #4 of 9
2/13/12 at 12:04am
Can't you just apply the filter play some sine tones and seewhat happens?
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post #5 of 9
2/13/12 at 1:18am
Thread Starter 

I was sort-of afraid of being asked that.  I'm a little "gun-shy" after having blown $600 ($900 retail) of car subs just in a last few months (currently rocking a very muddy blown car sub, lol.)

The thing is, I mostly want the frequencies down to the low 20s, so it would have to be a very low bandwidth filter, and that would probably still cut off 20 to 22 Hz, which I might want.

It shouldn't hurt anything, so I'll probably give it a go if I can't find an alternative.  I figure also that it would be nice to have more cut than the 15dB range of Electri-Q at around 10Hz.

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post #6 of 9
2/13/12 at 3:25am
Electri-Q‘s high pass filter cuts down to -inf dB. Now if you were talking about low shelf that's 15dB. but you can stack filters up. I am thinking of a similar application to keep my weak 6“ sub from blatting and I'm thinking that a dynamics equalizer would allow me to limit the heavy bass peaks while still allowing me to boost low bass to the benefit of quieter scenes. My plan is to set a fixed PC out and sub volume, then play with tones in sinegen to find the threshold of clearly audible distortion at different frequencies and set the dynamic EQ limit accordingly.

Right now I think ReaFIR by reaper would do the job when set to compression mode with 100:1 ratio but I haven't seen what its lower frequency limit is.
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post #7 of 9
2/13/12 at 10:04am

Just confirmed ReaFIR would do what I want and allow adjustments all the way down to 0Hz.  You can use it as a regular EQ too.  But it is not zero latency.

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post #8 of 9
2/14/12 at 12:03am
Thread Starter 
Quote:
Originally Posted by Joe Bloggs View Post

Just confirmed ReaFIR would do what I want and allow adjustments all the way down to 0Hz.  You can use it as a regular EQ too.  But it is not zero latency.



Sweet, do you think it affects any of the upper response?

Also, do you have a link?  I can't seem to find it.

Thanks

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post #9 of 9
2/14/12 at 5:38am

I tested it for a bit and I think for EQing it is not more selective than say Electri-Q with a Butterworth 48dB/octave highpass filter at 20Hz.  Oh and I risked my toy sub for you and it definitely cuts out 15Hz (the lowest Sinegen would go).

 

The ReaFIR plugin is included here:

http://www.reaper.fm/reaplugs/

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