Video Summary - No-Nonsense Guide: How To Use EQ (Equalizer)

Main Ideas / Concepts

EQ (Equalizer) is like volume controls for specific frequency ranges: instead of changing the overall track volume, EQ splits the audio signal into frequency bands so you can boost or cut particular parts of the spectrum.
More bands doesn’t automatically mean better EQ: the number of EQ bands on a plugin doesn’t guarantee quality; what matters is using EQ correctly.

Frequency: selects which frequency you want to target.
Q (Quality Factor): controls the bandwidth (how wide or narrow the affected frequency area is). This matters for resonant frequencies and for choosing between broad vs. narrow boosts/cuts.
Bands (in graphic/fixed-band EQs): fixed frequency ranges commonly grouped into low / mids / highs. Some EQs let you adjust the crossover points between bands.
Filter type: determines the shape of the cutoff/boost curve (e.g., bell, shelf, cut).
Gain: controls how much the selected frequency range is boosted or reduced (typically not used the same way for pure high-cut/low-cut filters).

Bell filter
- Most common type.
- Boosts or cuts either a wide or narrow frequency range.
- Primary tool for tone shaping.
Low shelf
- Boosts/reduces all frequencies below the selected frequency.
- Useful for dampening or affecting a large low-frequency range.
High shelf
- Boosts/reduces all frequencies above the selected frequency.
- Useful for dampening or affecting a large high-frequency range.
Low cut (also called high pass)
- Removes frequencies below a certain cutoff.
- Used to get rid of low-end rumble or mic handling noise.
High cut (also called low pass)
- Removes frequencies above a certain cutoff.
- Used to remove high-end noise (e.g., “camera buzz”) and to clean up the highs so other elements can stand out.

Slope controls how sharp/aggressive the drop-off is around the selected frequency.
Higher slope values → more drastic change.
Lower slope values → more subtle change.

Gain sets the amount of volume increase/decrease applied to the chosen frequency range.
For high cut / low cut filters, gain is effectively not presented the same way because they behave like infinite drop-offs (frequencies beyond the cutoff are removed).

Use low cut filters to clean up the low end
- Even if a voice doesn’t carry much sub-frequency content, there can still be low-end energy.
- Problems show up more in layered sound situations because low-end presence can build up (e.g., in dialog processing).
Use “less is more”
- If you’re reaching for 10+ EQ bands, it may indicate a bigger issue that EQ alone can’t fix (you may need other problem-solving steps).
Experiment with different filter types
- Different filter types solve different tonal/noise problems more effectively than forcing the same EQ approach everywhere.
Try advanced EQ concepts/plugins (as mentioned)
- Examples of more advanced filter/filter-unit approaches:
  - Serum (mentions additional filter types)
  - Effects / racks (mentions comb filters, format filters, flangers)
  - A favorite technique: a filter that simulates sound with reverb without applying reverb directly.

The creator plans to follow up with more advanced, targeted EQ techniques, including:

Tyler (speaker/creator) — “hi my name is tyler and this is after touch audio”
After Touch Audio — the channel/brand referenced by the speaker
FabFilter Pro-Q3 — mentioned as an example of an EQ where custom nodes can be created
Serum — mentioned as an example with additional advanced filter types
Effects racks / filter units (possibly mentioned generically) — e.g., comb filters, format filters, flangers