ATEIS IDA8 - Manual (Page 440)

ATEIS - IDA8 440
© 2012 ATEÏS
For example, we set a system for a speech with background music playing and the speechmaker is
using a standard dynamic microphone type SM58. When the speechmaker is talking, the
background music must decrease its level.
The component set is shown in the picture below. The microphone is connected to channel 2 of the
"Input A" component with sensitivity set as -40dB. The microphone is linked to the input (S) of the
Ducker.
The music player (as a CD player) is connected to channel 1 of the "Input A" component then the
music source is linked to the input (A) of the Ducker.
Elements:
Threshold:
Set as -18dB, because less would activate the attenuation causing the microphone to catch
some unexpected noise even when the speaker is not talking.
Response Time:
Set very short, because the background music must be attenuated as soon as the speaker is
talking.
Attack and Release Times:
The "fade-in" and "fade-out" on the background music. Set about 1 second for hearing comfort.
Hold Time:
Set as 700(ms) which is enough to avoid the music increasing during the speech breaks.
Audio Depth:
Set as -20dB for constantly hearing the music during the speech but in a very low level
(depending on the context).