VLC too loud on Mac? How to balance it against your other apps

Good news: VLC already controls its own volume independently on a Mac. Its slider is separate from your system volume, it remembers the level between sessions, and it even goes above 100%. Where VLC stops is everything around it — balancing VLC against your music or a call, muting it without switching windows, or capping a clip that's suddenly too loud. macOS has no mixer for that, so those jobs need a per-app volume app. This guide covers exactly what VLC's own control does, where it runs out, and the fastest way to fill the gap.

VLC is one of the better-behaved apps on this front, which is worth saying plainly. A lot of Mac apps ride on top of your system volume — turn the system down and they go with it. VLC doesn't. It has a real, internal volume that sits under its own control, so "VLC at 40%, everything else at 100%" is a state VLC can hold on its own. If your only goal is to make VLC quieter or louder than the master, you may not need anything extra at all.

Where VLC's own volume slider lives

There are three places to set it, and they all move the same independent level:

The slider at the bottom of the VLC window is the obvious one — drag it left or right while a video or track is playing. The keyboard is faster: with VLC focused, press ⌘ + Up to raise and ⌘ + Down to lower, or scroll on the video area. And M mutes VLC outright. Whatever you set sticks — reopen VLC tomorrow and it starts at the same level.

By default VLC's slider tops out at 125%, which is genuinely useful for quiet source files. You can push the ceiling higher — up to 300% — under VLC › Settings › Show All › Interface › Main interfaces › Qt, in the "Maximum Volume Displayed" field. Fair warning: anything above 100% is amplification, and pushing it hard will distort the audio and can be unkind to your speakers and ears.

What VLC's control can't do

All of the above only ever moves VLC. That's the ceiling of a per-app slider that lives inside one app, and it leaves three common problems unsolved:

Balancing VLC against other apps. If a movie in VLC is drowning out a Discord call or your background music, VLC's slider lowers VLC but tells you nothing about how loud the others are. You end up bouncing between each app's separate slider to find a mix, because macOS has no single panel that shows every app's level side by side.

Muting VLC without switching to it. VLC's M key only works while VLC is the focused window. The moment you're typing in another app and a loud clip fires, you have to click into VLC first, then mute — which defeats the point of a fast mute.

Riding the level from wherever you are. Even ⌘ + Up needs VLC in front. If VLC is playing in the background while you work, changing its volume means finding its window every time.

The fix: a per-app mixer that sits above VLC

The category that solves this is a per-app volume mixer — an app that works at the macOS audio layer and gives every running app its own level in one place, VLC included. That's the layer Apple never shipped. Because it sits above the individual apps, it can do the three things VLC's own slider can't: put VLC and your other apps on one screen, mute VLC globally, and let you reach VLC's level without leaving whatever you're in.

Several tools live here, and they're honestly not that different in whether they can set VLC's level — they differ in how you reach the control and what else they carry. Here's the fair lay of the land:

Background Music is free and open source and worth trying first if budget is the whole question — it puts every app in a menu-bar list. SoundSource is the deep option, with per-app EQ and routing, at $49 one-time. Fader's angle is different: it trades the menu bar for the keyboard.

Why the keyboard is the real difference for VLC

VLC is usually a background player — a movie in the corner, a lecture while you work, a track under a call. Background players are exactly where a menu-bar mixer gets slow: to nudge VLC you move to the menu bar, click the icon, find the VLC row, drag it, dismiss the panel. That's five actions for a volume tweak you make on the fly.

Fader's bet is that the fastest controller you own is already under your hands. You hit a toggle hotkey, the keyboard becomes a mixer — one letter column is VLC, the next is your music, the next is your call — and you ride levels with letter keys without ever leaving your current window. VLC too loud mid-scene? One keystroke down. Need it gone while you take a call? A per-app mute key silences VLC from anywhere. It's the same job VLC's own slider does, minus the window-hunting.

This is the same pattern that applies to any app without a good background control — the same reasoning behind lowering one app's volume without touching everything else, and part of the broader picture in controlling individual app volume on a Mac.

Quick answers by situation

"I just want VLC quieter than the master." Use VLC's own slider or ⌘ + Down. It's free and it sticks. No extra app needed.

"VLC is fine but I keep re-balancing it against music and calls." That's the mixer problem, not a VLC problem — a per-app mixer puts them on one screen so you set the mix once.

"A loud clip fires while I'm working and I can't mute it fast." Bind a global per-app mute key so VLC drops to silence from inside any other app.

Bottom line

VLC is a rare Mac app that already gives you an independent, persistent volume — for making VLC alone louder or quieter, its own slider is all you need, and it's free. The gap is everything above one app: balancing VLC against your other audio, muting it without switching windows, and adjusting it without hunting for its window. Those are mixer jobs, and if reaching the control in a single keystroke is what you care about, that's exactly what Fader is built for.