Level 2 Feedback Identification by Ear: 18 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 16 of the 31 GEQ frequencies and identify them by ear to become a feedback sniper: 25Hz, 31.5Hz, 50Hz, 80Hz, 125Hz, 160Hz, 250Hz, 315Hz, 500Hz, 800Hz, 1kHz, 1.6kHz, 2.5kHz, 4kHz, 5kHz, 8kHz, 10kHz, 16kHz
Name the frequency!
25Hz
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.
Name the frequency!
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.
Name the frequency!
50Hz
Note: Don’t feel bad if you can barely hear this one, especially if you’re listening over a mediocre-to-bad monitoring output like a phone or laptop speaker. Or shitty earbuds. This is in the range that often requires a subwoofer or another special low-end driver to be heard.
Name the frequency!
80Hz
Name the frequency!
125Hz
Name the frequency!
160Hz
Name the frequency!
250Hz
Name the frequency!
320Hz
Name the frequency!
500Hz
Name the frequency!
800Hz
Name the frequency!
1kHz
Name the frequency!
1.6kHz
Name the frequency!
2.5kHz
Name the frequency!
4kHz
Name the frequency!
5kHz
