Section 1 — Controls and Architecture
Managing Headroom
31
-12dB
Normal Sample
Playback Attenuation
Normal Sample
Attenuated Sample
Combined Samples
still remain within
the system
headroom
-12dB
Drum Sample
Drum Sample Playback
without Attenuation
The BOOST parameter should
not be turned on for all WaveSamples.
Sustaining sounds can remain at their peak volume for as long as a key is held down. As a result,
if boost is turned on for a sustaining sound, it is very likely that playing multiple notes will result
in clipping, even if the notes are not all started at the same time.
After sampling with REC SRC= MAIN-OUT, the Edit/Amp BOOST parameter is automatically
set to ON for the new WaveSample. This is done because you have sampled a signal that was
attenuated by 12dB and now the sample will be played back attenuated by another 12dB.
Turning BOOST= ON, compensates for this effect. As a final step, after sampling the MAIN
OUT, it is recommended that you optimize your use of headroom by setting the Edit/Amp
BOOST= OFF, and performing the Command/Amp NORMALIZE GAIN command on the new
WaveSample.
The key to managing your headroom is to determine which non-sustaining sounds will be the
loudest, and set the BOOST parameter ON only for those sounds.
Audio Track Headroom
The Audio Tracks are permanently set to BOOST= ON. To prevent clipping, the Edit/Track MIX
parameter for the Audio Tracks defaults to MIX= 60. When MIX= 99, the Audio Track will use
the entire 96dB dynamic range. If you hear clipping when monitoring audio input on an Audio
Track, first adjust the Mic/Line Switch and the Input Level trim control so that the red Input
Level Peak LEDs only light occasionally (the red Peak LEDs light at 6dB below clipping), and
then set the Edit/Track MIX parameter to a lower value.
