Equalization changes, Thunder bass – Omnia Audio Omnia A/XE User Manual

Page 62

Advertising
background image

• Reduce the Release time to operate slower.
Backing off the Limiting sections first will allow the processing to retain a level of competi-

tive loudness while enhancing quality, and the overall dynamic texture will be affected less.

Start with reducing the Limiter amount in 0.5 dB steps. It’s surprising how much detail can

be restored from just a small change of 0.5 dB. Generally, changes in the Limiter drives will

have the most noticeable effect on quality, but it will also affect the relative loudness level,

too. You’ll need to find a “happy medium” that’s right for you.

Equalization Changes

Tailoring the shape of the overall audio spectrum can be done in three different sections:
1. The relative drive settings in the multiband AGC menu. These controls set the drive

levels of the multiband AGC sections.

2. The settings of the multiband Mixer controls.
3. Adjusting the Mixer.
The first two options will provide noticeable change in EQ. We suggest you use the first op-

tion. In this case, an EQ change is still followed by a dynamically controlled stage. Therefore

any excessive EQ change can be ‘undone’ by the subsequent AGC.
The last option, adjusting the Mixer, is designed to provide a final minor trim to the

spectrum. If you’ve noticed that we calibrated these controls in 0.10 dB steps, then you

know what we mean when we say these controls are for fine trim! Since this stage is after

all of the dynamic AGC and Limiting, a radical change in level in the Mixer will result in

additional and possibly excessive limiting of audio in that band. We suggest that changes

implemented here be limited to no more than about 1.0 dB. Naturally, the decrease in mix

level can be done to any desired amount.

Thunder Bass

Omnia A/XE has the power to shake the walls with low end! If your source material has it,

Omnia A/XE will put it in the mix, and with muscle! Making changes to this characteristic

is done using the following parameters, and for maximum effectiveness, in the order listed:
1. In the Enhance Menu, increase the amount of Deep Bass boost.
2. In the Enhance Menu, increase the amount of Phat Bass boost.
3. Increase the drive to the LF AFC with the appropriate control in the LO AGC screen.
4. Speed up the Release times of the LF LO AGC section.
5. Slightly increase the Low control in the Mixer section
When it comes to processing, moderation is the key! If all of the above steps are utilized in

the pursuit of more bass, then severe low frequency over-enhancement can occur. Excessive

bass boost can produce the illusion that the presence and high frequencies have been lost.

They are still there, but are being acoustically masked by the lower frequencies.
Generally, an increase in the Enhance Menu’s Bass boost functions alone will provide more

than sufficient enhancement to the low end.

56 | Processing Audio

Advertising