Product manual

EAP01 - Product Manual
5.3.5 Microphone Fade Up and Down Times
Menu: ConfigurationÆSystemÆRouterÆInputsÆMic/LineÆ<I/P #nn – input name>
ÆFire MicrophoneÆAudioÆFade
Possible values: 00 to 50 (Time in tenths of a second. Divide by ten for the time in seconds.)
System default configuration: ‘Up=00’ and ‘Down=00’
It is possible to specify a fade up and fade down time for each Mic/Line input or Music input. This can be set
to provide the desired changeover fading, e.g. when a broadcast interrupts background music, or a lower
priority broadcast.
This is typically used on background music where a slow fade-up, in particular, is desirable.
The Fade Down time is:
• The time it takes for the signal to fade down when turned off (un-routed);
• The time it takes for the signal to fade down before an overriding broadcast is made in its place
The Fade Up time is the time the signal takes to fade up when:
• Turned on (routed);
• Override removed.
The diagram in Figure 14 illustrates the sequence of events during the enabling and disabling of a single
audio source (e.g. background music).
Figure 14 Sequence of Events for Single Audio Source
MUSIC
FADE UP=T1
FADE DOWN= T2
T1
MUSIC AUDIO
T2
ON
OFF
The diagram in Figure 15 illustrates the sequence of events during the override of a background music
source by a Paging Microphone with chime.
Note that the background music Fade Down time (T2) is not used in this instance. Instead the microphone
Fade Down time (T4) is used to fade out the background music before the microphone broadcast starts, as
well as to fade out the microphone at the end of its broadcast.
Issue: 02 complete, approved
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