User Manual

12
The following are the four important elements when designing and adjusting a voice lift
system.
1. Room EQ settings to flatten the frequency response in the room
Use an acoustic adjustment tool such as a real-time analyzer as well as a room EQ to
flatten the system's frequency response as much as possible according to a room's
acoustic character. The flatter the frequency response is, the more feedback margin can be
achieved.
2. Output level setting for each speaker using the output fader
Since the audio output from a speaker close to the microphone can easily be diffracted, set
the output level low to minimize feedback. And the output level can be set higher as a
speaker gets farther from the microphone. Set each speaker's output level properly using
each output fader.
3. Delay time setting according to the system latency and the time when the audio
reaches the listeners
The latency between the direct voice and the amplified voice from the speakers can affect
the sound quality, especially clarity.
Set the delay time properly by referring to the latencies below and considering the time
when the sound output from each speaker reaches the listeners.
RM-CG's latency: Approx. 21msec (when set to the Low Latency mode)
MRX7-D's latency: Approx. 4 to 5 msec*
Dante's latency: Approx. 1msec
* The latency varies according to the configuration of the MRX7-D.
4. Additional information
FBS (Feedback Suppressor):
By inserting FBS (Feedback Suppressor), unexpected feedback can be avoided.
Gate:
By inserting Gate, noise can be cut when no sound is produced.
Ducker:
By inserting Ducker, the output from the speaker can be kept below a specified level even
when an unexpected amount of feedback occurs.