Fabfilter Pro-Q 3: Comparing shelf and notch filters in Pro-Q 3 and 4

Demo summary
The demonstration continues by applying low shelves at 120Hz, bell filters, and high-frequency notches to both plugins to verify they still null perfectly under different filter types.
Step-by-step
- Apply a low shelf filter at 120Hz with a 5dB boost and a Q of 1
- Switch the filter type to a Bell filter
- Invert the gain to perform a cut
- Apply a high-frequency boost at 20kHz
- Increase the boost to 9dB
- Switch the processing mode to Natural Phase
Options
- Toggle between Low Shelf, Bell, and Notch filter types
- Switch between Zero Latency and Natural Phase modes
Tips
- Use a Notch filter for more complex frequency removal tests
- Verify phase alignment by checking for complete silence (nulling) when comparing two plugin versions
Highlights
“there's literally nothing coming out”
All demos from “Pro-Q 4 vs Pro-Q 3: DO THEY SOUND DIFFERENT?”
2:581:04Testing phase modes in Pro-Q 4The user switches between Zero Latency, Natural Phase, and Linear Phase modes in both FabFilter plugins while phase-inverted to see if any residue appears during playback.Fabfilter Pro-Q 3· AI Audio Editor
4:162:03Comparing shelf and notch filters in Pro-Q 3 and 4CurrentThe demonstration continues by applying low shelves at 120Hz, bell filters, and high-frequency notches to both plugins to verify they still null perfectly under different filter types.Fabfilter Pro-Q 3· AI Audio Editor- Watch “Pro-Q 4 vs Pro-Q 3: DO THEY SOUND DIFFERENT?” →
AI Audio Editor
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