SILVER Audio Processor 4Bmini User’s manual
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Audemat-Aztec SA – Audemat-Aztec INC
web: www.audemat-aztec.com - e-mail: contact@audemat-aztec.com
Getting the Sound You Want
While the SILVER Audio Processor 4Bmini can help you obtain the sound that you want we must always take into
account the limitations presented to us by the transmission channel. The biggest problem we have is the maximum
peak level that can be handled by that transmission channel. For FM broadcast this is +/- 75 KHz for 100%
modulation.
The trade off in any audio processor is loudness vs. Quality. The mark of how good a processor is, is how loud the
processor can be whilst maintaining sufficient quality. It is up to you where this loudness / quality trade off point is set.
This point is also usually market and format dependent.
In the effort to squeeze as much bass and high frequency energy into the peak limited channel we must make
compromises. Bass takes up a lot of room in the waveform and pursuit of a 'mega bass' type sound will leave you
less room for high frequencies. When processing aggressively we usually will have to accept a certain level of bass
distortion in making room for high frequencies or we will have to accept a certain level of high frequency distortion if
our desire is lots of clean loud bass.
If your aim is a cleaner sound and a slight loss of loudness is not important then it is easier to get the tonal
characteristic you're after without distortion. Lower clipper drives will provide you with clean bass and crystal clear
razor sharp high frequencies. The choice is yours.
More LOUDNESS
Loudness can be increased in several ways.
Multi-band AGC:
Increase the drives to the bands.
Speed up the release times, making them faster.
While it is possible to create a strange response in the multi-band AGC, it is hard to produce distortion because
whatever gets through the AGC is dealt with by the following peak limiters.
Multi-band Limiters:
Slow down the peak attack times, letting more through to the clippers.
Speed up the release times of the average release time constants.
Slow down the average attack time so that the peak time constants dominate the control signal providing faster
control.
Increase the master limiter drive.
Increase the individual limiter drives.
Extra loudness can be obtained by working on only a single or a couple of the above suggestions. You are likely
to run into trouble if you 'CRANK UP' all of the above settings. You are likely to generate excessive distortion in
the final clippers and generate a fatiguing sound if you're not careful. Less can be more. Make small changes and
compare against the settings of the factory presets if you find you have lost your way some where.
Final clippers:
Increase the final clipper drive and increase its hardness control to a higher number.
Increase composite clipper drive.
WE SUGGEST ONLY SMALL MODIFICATIONS FROM FACTORY PRESET SETTINGS IF YOU ARE
MODIFYING LOTS OF THE PARAMETERS. IF YOU ARE ADJUSTING ONLY A COUPLE FROM THE ABOVE
SUGGESTIONS THEN YOU PROBABLY HAVE A BIT MORE LEE-WAY. IT IS VERY EASY TO BECOME
UNSTUCK AND LOSE YOUR WAY ONCE YOU START 'CRANKING' LOTS OF DIFFERENT SETTINGS.
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