Level 1 Feedback Identification by Ear: 10 of 31 Bands of GEQ Flashcards
COMPLETE Standard mix outputs in live sound applications have 31 bands of EQ applied before signal arrives to the system's speakers. These EQs can be used to notch out feedback. Listen to sine waves at 10 of the 31 GEQ frequencies and identify them by ear to become a feedback sniper: 31.5Hz, 80Hz, 125Hz, 250Hz, 500Hz, 1kHz, 2.5kHz, 5kHz, 10kHz, 16kHz
1
Q
Name the frequency!
A
31.5Hz
Note: Don’t feel bad if you can’t hear this one, especially if you’re listening over a mediocre-to-bad monitoring output like a phone or laptop speaker. Or most earbuds. Or… most things. Most people can’t hear it anyway. Honestly to hear it at all, you’ll probably need a subwoofer.
2
Q
Name the frequency!
A
80Hz
3
Q
Name the frequency!
A
125Hz
4
Q
Name the frequency!
A
250Hz
5
Q
Name the frequency!
A
500Hz
6
Q
Name the frequency!
A
1kHz
7
Q
Name the frequency!
A
2.5kHz
8
Q
Name the frequency!
A
5kHz
9
Q
Name the frequency!
A
10kHz
10
Q
Name the frequency!
A
16kHz
Note: This is likely the range that you’ll struggle to hear if you’ve sustained much hearing damage you’ve sustained over the course of your life. Also likely uncomfortable to listen to.
11
Q
