I’m trying to record clear audio on my Mac for voiceovers and screen recordings, but I’m confused about which built‑in tools or free apps I should be using and how to set them up. I’ve had issues with low volume and background noise, and I’m not sure if it’s my mic settings, audio input device, or the software itself. Can anyone walk me through the best way to record audio on a Mac, step by step, and recommend any settings or tools that actually work well?
I fought with this on my Mac too. Here is what worked for me, step by step, using only free stuff.
- Fix your input basics first
• Go to System Settings > Sound > Input
• Pick the right mic. Avoid “MacBook Microphone” if you have any USB mic or headset.
• Speak at normal voice. Set Input volume so the bar peaks around 60–80 percent, not full red.
• Turn on “Use ambient noise reduction” for the built in mic. Turn it off for a USB mic if it sounds weird or muffled.
• Move closer to the mic. About 4–6 inches. Talk past it, not straight into it to cut plosives.
If your levels stay low, raise the mic gain on the mic itself or interface, not only in macOS.
- Easiest tool for voiceovers only: QuickTime Player
Good for simple voice tracks.
• Open QuickTime Player
• File > New Audio Recording
• Click the arrow next to the record button, pick your mic and quality = High
• Do a 5–10 second test, talk at your normal level
• Stop, play back, check for noise and volume
If it sounds quiet, increase input volume in System Settings and redo.
- For screen recording with your voice: QuickTime or OBS
QuickTime method
• File > New Screen Recording
• Click the arrow next to record button
• Select your mic as “Microphone”
• Record part of the screen or full screen
• Test with a short clip first
QuickTime does not give much control, so if levels or noise annoy you, try OBS.
OBS (free, more control, slightly nerdy)
• Download OBS Studio from obsproject dot com
• In OBS, in Sources, click + > Display Capture for screen
• Click + again > Audio Input Capture > pick your mic
• Talk and watch the audio meter. Aim for peaks around the yellow. Avoid solid red.
• Click Settings > Output > Recording. Set Recording format to mkv or mp4
• Record a short test. Playback to check sync and noise.
- Clean up audio with free tools
Use Audacity for quick cleanup.
• Install Audacity
• Import your audio file
• Effects that help:
– Noise Reduction. Select a bit of “silence” with only background sound. Get Noise Profile. Then run Noise Reduction with small values first.
– Compressor. Even out volume. Set threshold around where your voice peaks, ratio around 3:1.
– Normalization. Normalize to around -1 dB. This makes the final volume more consistent.
Export as WAV or high bitrate MP3.
- Reduce background noise before recording
• Turn off fans and AC if possible.
• Move away from loud windows.
• Use a cheap foam windscreen and, if possible, a pop filter in front of the mic.
• Record in a smaller room with soft stuff, like curtains, bed, couch. Hard bare rooms sound echoey.
- Quick “good enough” setup
If you want something simple and repeatable:
• USB mic around 50–100 dollars, placed 4–6 inches from your mouth
• System Settings > Sound set to that mic, input around 60–70 percent
• Record in QuickTime or OBS
• Run the track through Audacity with light Noise Reduction, a Compressor, then Normalize
- Check your monitoring
If you wear headphones:
• In your recording app, turn on monitoring, or at least test by recording and playing back
• Avoid speakers during recording, they create echo and feedback
You do not need fancy gear for clean voiceovers and screen records. Solid input level, less room noise, and one pass in Audacity usually fix low volume and background mess.
Couple more angles you can try that aren’t just re‑stating what @himmelsjager already covered:
1. Use Voice Memos for quick, clean voiceovers
Weirdly, the tiny Voice Memos app is often cleaner than QuickTime for simple talking tracks.
- Open Voice Memos
- Click the little “Options” button (i) on your recording
- Turn “Enhance Recording” ON
That enhancement actually does a decent job killing low background noise and boosting clarity automatically. Record there, then drag the audio file into your video editor or screen recording workflow.
2. Fix the “low volume” at the end, not the beginning
Instead of cranking input volume to 100 and getting hiss:
- In System Settings keep input around 60–70%
- Record slightly quiet but clean
- Afterwards, in GarageBand (free, already installed on most Macs):
- Create a new Empty Project
- Drag your audio in
- On the track:
- Add Compressor plugin (Dynamics > Compressor)
- Start with:
- Threshold: around ‑18 dB
- Ratio: 3:1
- Makeup gain: 3–5 dB
- Then raise the track volume fader until it feels right
That way you avoid noisy input but still end up loud enough.
3. GarageBand template for voice + screen
If you’re doing screen recording in QuickTime or OBS, run your mic through GarageBand live:
- Open GarageBand, Empty Project
- Choose Microphone track
- In the project:
- Turn OFF reverb and echo on the track
- Add Noise Gate around ‑40 to ‑50 dB
- Add Compressor as above
- On the bottom right, enable Monitoring so you can hear yourself in headphones
- Then record your screen only in QuickTime/OBS and record audio separately in GarageBand
You’ll get processed audio in real time. Slightly more involved, but once you save it as a template, it’s 2 clicks.
4. Turn off the “helpful” Mac sound magic where it hurts
I half‑disagree with relying on macOS’s own noise reduction for anything serious:
- In System Settings > Sound > Input, if your USB mic suddenly sounds “swimmy” or phasey, check if your recording app added any live filters or if the mic has its own DSP.
- For voiceover work, I’d rather:
- Have no OS noise reduction
- Record clean
- Apply controlled noise reduction after in Audacity or GarageBand
Sometimes macOS is trying to be Zoom and kills your tone.
5. Battling background noise at the source
If fans and street noise are your main issue, a couple non‑software tricks:
- Rotate your mic so its null point faces the noise.
- Cardioid mics reject from the back; point the back at your loudest thing (window, AC).
- Talk closer and quieter rather than farther and louder.
- Closer mic = better signal to noise = less hiss when you boost later.
- Record at “off” times. Sounds dumb, but recording 15 minutes later when the neighbor finishes their laundry actually changes everything.
6. For screen + voice in one shot, but with more control
If QuickTime feels too barebones and OBS feels like a cockpit:
- Try BlackHole or VB-Cable style virtual audio devices so you can route:
- System sound
- Your mic
- Into GarageBand or Audacity as one mix
- Then screen record with no mic selected in QuickTime, and just sync the processed audio later
Bit nerdy, but once set up, you get full control and cleaner levels than “just let QuickTime handle it.”
If you keep hitting low volume, think:
- Record slightly conservative but clean,
- Fix level and noise after,
- Stop fighting the MacBook mic in a loud room and either change the room or the mic position before changing software.