Sound app suggestions to boost voice when using a screen recorder Please

FineTune lets you to choose, boost audio output per apps. And this is what they say in their GitHub page: FineTune, a macOS menu bar app for per-app volume control, multi-device output, audio routing, and 10-band EQ. Free and open-source alternative to SoundSource. Maybe take a look at it :)

I just downloaded this and it's great

🙌 Thank (& if you can sponsor) Dev for such a gem! Edit: I just found that we have him (u/Stoned_Orangutan) here on reddit. Thanks u/Stoned_Orangutan for making it.

Check rogueamoeba products z one would fit your need

Audio Hijack + Loopback from Rogue Amoeba. Great combination. Not cheap, but excellent.

if this is for your own mic in screen recordings, i would fix it before it hits the recording instead of boosting the final video. in OBS, add a compressor and limiter filter to the mic, then do a 30 second test where you talk quietly and normally. for app/system audio, SoundSource or Audio Hijack are the usual Mac answers, but on a beta macOS build i would test carefully first because audio drivers/extensions are exactly the kind of thing betas break.

The app recommendations here are right (Audio Hijack is the one that'll actually do it), but the reason it's "hard to hear even at full blast" probably isn't volume, and a booster alone won't fix it. Two things usually cause that: Mic distance. If you're on the built-in mic a couple of feet away, you're mostly recording the room, and no plugin recovers that. Halving the distance does more for clarity than any software chain. A cheap USB mic 20cm from your mouth beats a boosted MacBook mic every time. Dynamics, not level. When a voice is quiet and uneven, turning it up turns the room hiss up with it, which is exactly why it still feels hard to hear. What you want is a compressor (evens out the quiet and loud parts), then makeup gain, then a limiter so it doesn't clip. Audio Hijack does this in real time while you record, but the settings matter more than the app: compress first, gain after. Also worth checking whether your voice is just buried under system audio in the mix. That's a routing problem (Loopback) rather than a boost problem, and it's easy to chase the wrong one.

That quiet-at-full-volume symptom usually points to dynamics rather than a volume ceiling, so a plain booster just pushes the loud parts into clipping before the quiet speech gets usable. What actually makes a voice sit forward is a compressor to even out the level, plus a small EQ bump around 2 to 5 kHz where the consonants live. Audio Hijack already got mentioned and it's the one I'd point you at, but you might not need Loopback next to it. Hijack lets you stack effect blocks on a single app's audio, so you can drop a compressor and an EQ (it also has a voice isolation block if background noise is part of it) straight onto your recorder or browser without routing anything. Loopback only earns its place when you actually need to combine or send audio between apps. On the beta 27 warning: SoundSource flags it because it installs an audio driver that has to match the OS build, and Rogue Amoeba usually needs a few weeks to catch up after a fresh beta. Audio Hijack leans on the same driver, so don't be shocked if it's cranky too until they ship an update. If you just need it fixed today and the quiet voice is in footage you already recorded, running the compression in your editor and normalizing to around -16 LUFS sidesteps the driver mess completely.

so this depends on whether you want to fix it before recording or after. if you want it live while recording, loopback by rogue amoeba lets you route and boost audio sources before they hit the recorder. its not cheap but its rock solid.

Before buying anything, figure out whether the quietness is in capture or playback. Export a ten-second clip and play it on your phone. If the voice is still quiet there, an output booster is solving the wrong stage: raise mic input and add light compression or limiting before or during recording. If the file sounds normal elsewhere but only this Mac is quiet, then per-app output control is the right fix. That one test saves a lot of trial-and-error because boosting playback will also amplify background noise and system audio.

I would make sure your input volume is set to max in sound settings first and see if that helps, since it's free and takes like two seconds. Hope that helps!

recording the voice on a separate track than any computer sounds allows you to adjust the volumes in post, which makes it a lot easier and more adjustable than trying to adjust volumes as you record

If the recordings are already made, I would fix the voice in the editor rather than only boosting playback volume. A compressor plus loudness normalization will make quiet speech easier to hear without making sudden loud parts painful. For per-app volume while recording or watching, SoundSource is probably the polished paid option. FineTune looks like a good free open-source alternative, with per-app volume, EQ and a boost for quiet apps.

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