Acoustica - Software should be easy to use

Understanding the Mixer EQ

Post any tips and tricks you've discovered for using Acoustica software here.

Moderators: Acoustica Dan, Acoustica Greg, Acoustica Chris, Acoustica Eric

User avatar
Mark Bliss
Posts: 6145
Joined: Fri Jan 20, 2012 3:59 pm
Location: Out there

Understanding the Mixer EQ

Postby Mark Bliss » Sat Jan 13, 2018 9:13 am

The mixer EQ has "fixed" frequencies and "Q"

Here is a pink noise spectrograph with the mixer EQ set "flat"-

Pink Noise -12dB RMS.png
Pink Noise -12dB RMS.png (469.69 KiB) Viewed 1200 times

And here is the same audio signal with the EQ set to full cut in all three frequencies-

Pink Noise mixer cut.png
Pink Noise mixer cut.png (506.78 KiB) Viewed 1200 times


And again at full boost-

Pink Noise mixer full boost.png
Pink Noise mixer full boost.png (476.01 KiB) Viewed 1200 times


Noting the frequencies affected:
The bass is a shelf filter, rolling off at about 300. Range is +/- 15 dB.
The treble is a shelf filter, rolling off at about 5K. Range is +/- 15 dB.
The mid frequency is a bell filter based a little below 3K, Range is +/- 12 dB.

Also of interest is the effect on RMS and peak levels.

My conclusion- I use the low and high frequencies often in mixing for subtle adjustments. The limits of the range of boost/attenuations mean they arent really for "big moves"
(IE turning down the low freq. to max cut isn't a HPF for example)

I dont use the mid range much. Its utility is limited due to its "fixed" frequency and "Q"

(* Suggestions have already been logged to update this in the future. Suggestions include adding a sweepable freq. range function and adjustable Q.)
Stay in tune, Mark

Image

My SOUNDCLOUD Page

User avatar
msnickybee
Posts: 233
Joined: Tue Feb 14, 2012 3:40 am
Location: Chester, UK
Contact:

Re: Understanding the Mixer EQ

Postby msnickybee » Fri Jan 26, 2018 6:50 am

Useful stuff!
I actually do sometimes use the Mixer EQ - maybe I'm in the minority there - but only for subtle quick tweaks as you describe.
Nicky
MC8 PS user since v5, Taylor & Yamaha guitars
Latest song: Blue Sky (YouTube)
My Facebook page My Instagram


Return to “Tips and Tricks”

Who is online

Users browsing this forum: No registered users and 3 guests