CHAPTER 21. LIVE AUDIO EFFECT REFERENCE
316
original
dynamic
range
larger
dynamic
range
downward expansion
(common)
original
dynamic
range
larger
dynamic
range
upward expansion
(uncommon)
Downward and Upward
Expansion.
To summarize:
Downward compression (common): make loud signals quieter
Upward compression (uncommon): make quiet signals louder
Downward expansion (common): make quiet signals quieter
Upward expansion (uncommon): make loud signals louder
The Multiband Dynamics device allows for all of these types of processing. In fact, because
the device allows for incoming audio to be divided into three frequency bands, and each
band has both an upper and lower threshold, a single instance of Multiband Dynamics can
provide six types of dynamics processing simultaneously.
21.19.2
Interface and Controls
The High and Low buttons toggle the high and low bands on or off. With both bands
off, the device functions as a single-band effect. In this case, only the Mid controls affect
the incoming signal. The frequency sliders below the High and Low buttons adjust the
crossovers that de ne the frequency ranges for each band. If the low frequency is set to
500 Hz and the high frequency is set to 2000 Hz, then the low band goes from 0 Hz to 500