Extron electronic Extron Electronics Music Mixer DMP 64 Manuale Utente

FBS Settings

The 

 tab enables selection of the feedback suppressor parameters. 

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For Composite View show: — The graph view is set by one of three buttons: 

•

•

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 (default)

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Mode: Q — Adjusts the notch filter Q used by dynamic filters. Similar to the 
parametric filter Q, it changes the bandwidth of the filter. The default setting can be 
modified in 

. The range is from 5 to 65. Larger values provide less 

change to the audio frequency response while lower values can provide greater 
feedback suppression but with more impact to the tonal response of the source 
audio.  
Suggested values for specific applications are:

7

Voice with considerable feedback potential

30 

Voice with less feedback potential 

65 

Music with minimal feedback potential

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Attack Time — Sets the time at which dynamic filters are generated after feedback 
detection. A longer attack time (greater than 200 ms) reduces the chance that music 
or audio content will trigger the dynamic filters to respond. A shorter attack time (less 
than 2 ms) reduces the time between when feedback is detected and suppressed.

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Hold Time — Expressed in 

 up to 9 hours. Hold time sets 

the time a dynamic filter setting persists before the filter is cleared. When hold time is 
disabled, dynamic filters persist indefinitely unless cleared manually or the device is 
power cycled.  
Hold time reverts to 00:00:00 when disabled (

 unchecked).