Output Channel - Anti-Feedback - QSC TouchMix-30 Pro User Manual

Output Channel – Anti-Feedback
Output Channel − Anti-Feedback
Available on the Main L/R and Aux outputs, these
narrow, cut-only fi lters are used for dealing
with feedback.
1. Anti-Feedback tab – Selects the Anti-Feedback
screen
2. Filters In/Out – Engages or bypasses the fi lters.
3. Feedback Frequency – The Anti-Feedback system
automatically identifi es and displays suspected
feedback frequencies.
4. Manual Kill – When a suspected feedback
frequency is identifi ed, touching this button applies
a fi lter at that frequency.
5. Feedback izard – The Feedback Wizard assists
in fi nding and cutting feedback-prone frequencies.
Touching this button opens the Feedback Wizard
which will guide the operator through the process.
6. Reset – Sets all the Filter controls and markers to
their factory default position. Note that the Feedback
Wizard will only use a fi lter if its Cut has been set to
0.0.
7. Display – Shows the frequency and depth (cut) of
applied fi lters.
• Vertical scale = dB
• Horizontal scale = frequency
8. Filter markers – These markers are color-coded to
correspond with their associated controls. Horizontal position indicates frequency. The amount of cut is indicated by a descending vertical line.
Twelve fi lters - TouchMix-30 Pro, eight fi lters - TouchMix-8 and -16.
NOTE!: Markers and their associated frequency controls are not tied to a specifi c frequency band. Marker 1 may attenuate a high
frequency, while Marker 12 may attenuate a low frequency.
9. Filter In/Out – The numbered buttons engage/disengage the fi lters.
10. Freq – Sets the center frequency of a fi lter.
11. Cut – Adjusts amount of Cut (or attenuation) for a fi lter. Range is from 0.00 dB to -20.0 dB.
12. Filter Depth % – Increases or reduces the depth (amount of cut) for all the fi lters.
13. Filter Q – Adjusts the width of the fi lter from a Q of 6 (0.05 octave) to a Q of 30 (0.24 octave).
14. / Buttons – Navigates to the next or previous channel. The buttons cycle through the Input, Playback, Record, and FX channels, then
loops back to Input 1. If you start in the Auxes, the buttons cycle through the Auxiliary outputs and the Main L/R channels.
15. Channel Controls – Output controls for selected channel. See Channel Controls topic. There are no controls displayed because there is no Aux
Master channel selected, only the Main L/R mix is selected.
16. Main Channel Controls – Output controls for the Main L/R outputs. See Channel Controls topic.
1001108-01-C
Press Anti-
OR Home
Feedback
Aux Outputs1-8
Anti
OR
Feedback
Inputs 1-8
1
Main Mix
Overview PEQ GEQ
L/R 15
Feedback
3
2
Joe's Ears
Feedback
Filters
Out In 124 Hz
Aux 1 Frequency
Aux 2
8
7
Aux 2 2 1 3 4 5
0
Aux 3
Aux 3
-5
Aux 4
Aux 4
10
Aux 5
-15
Aux 5
Aux 6
-20
20 50 100 200
Aux 6
9
Aux 7
1 2 3 4 5
Aux 7
Aux 8
Aux 8
Freq Freq Freq Freq Freq
Aux 9
52.1 37.5 70.2 132 247
10
Aux 9
Aux 10
Hz Hz Hz Hz Hz
Aux 10
Aux 11
Cut Cut Cut Cut Cut
Aux 11
-15.0 0.0 0.0 0.0 0.0
11
Aux 12
Aux 12
dB dB dB dB dB
Aux 13
Aux 13
%
Aux 14
Filter Depth
Aux 14
55
Touch an
Touch an
Aux Channel
Aux Bank
or Main
Anti-
Aux 1
Feedback
Anti-
Comp Auxes Presets Setup
6
4 5
Manual Kill Feedback Wizard Reset
6 7 8 9 10 11
500 1K 2K 5K 10K
6 7 8 9 10 11
Freq Freq Freq Freq Freq Freq
462 866 1.62k 3.0k 5.7k 10.7k
Hz Hz Hz Hz Hz Hz Hz
Cut Cut Cut Cut Cut Cut
0.0 0.0 0.0 0.0 0.0 0.0
dB dB dB dB dB dB dB
12 13
Filter Q
84 13.6
Touch
Anti-Feedback
Tab
14
Scene:
Default
Prev Next
Main
15 16
12
0
Cue
-5
10
Main
L/R
-15
10 10
-20
20K
5
12
L
u
AF
5
Freq 10
20.0k
20
0
Cut
40
0.0
∞
Mute