WHAT IS THIS AND HOW DO I USE IT?
IS THIS DONE PRE-RECORDING OR POST-RECORDING?
WHAT IS THIS AND HOW DO I USE IT?
IS THIS DONE PRE-RECORDING OR POST-RECORDING?
As with all effects in Audacity, Filter Curve is used post-recording.
Details are in the manual here: https://manual.audacityteam.org/man/filter_curve.html
I’ts an equalizer.