Every voice actor learns about proximity effect eventually — usually by accident, usually because something sounded muddier than expected. The standard advice: back up from the mic, add a high-pass filter, move on. Useful enough, but it misses the point.
Proximity effect is a feature. Directional microphones — the cardioids and ribbons most of us record on — naturally boost low frequencies the closer you get to the capsule. That's not a bug in the design. It's physics you can use.
How Mic Distance Actually Changes Your Sound
Move in to 4–6 inches and the low end of your voice fills out. You sound warmer, more intimate — the voice feels closer to the listener's ear. It's the right choice for a conversational read, a low-energy commercial, anything where you want the listener to feel like you're talking directly to them.
Back up to 8–12 inches and the low-end boost disappears. The sound opens up, gets more neutral and natural. Better for narration, documentary work, or anything that needs to feel authoritative rather than close.
Move further — 12 inches and beyond — and you start to pick up more room, more air. Can work well for certain character reads or ensemble work where you want space in the sound. Not ideal if your room isn't treated.
The Practical Move: Treat Distance as a Performance Variable
Set your mic position once per project, not once forever. Before you hit record, think about what the script is asking for — intimate or open, close or broadcast — and adjust accordingly. A couple of inches makes a real difference, and dialling it in before the session is faster than fixing it in post.
Most home studios have one default mic position. We'd encourage a second one — marked with a piece of tape if needed. Close position for warmth. Far position for neutral. Know where both are and use them.
Joe Passaro has a solid breakdown of proximity effect in VO context →