How to Make a Screen Recording Louder (iPhone, Mac, PC)

Screen recordings are notorious for having quiet audio. Whether you recorded a tutorial, a gameplay clip, a lecture, or a meeting — the audio often comes out barely audible.

This happens because screen recorders capture system audio at whatever level your device outputs it, and microphone input is often compressed to avoid clipping. The result: a recording that looks great but sounds like it was recorded from across the room.

Here's how to fix it on every platform.

iPhone Screen Recordings

iPhone screen recordings are the worst offenders for quiet audio. iOS captures audio conservatively to prevent distortion, which means most recordings are way too quiet.

Method 1: Use Loudify (Fastest)

Loudify was built specifically for this problem.

Method 2: Use iMovie (Free but slower)

1. Open iMovie → New Project → Movie
2. Import your screen recording
3. Tap the clip, then the speaker icon
4. Drag volume up (max ~500%)
5. Export

iMovie works but re-encodes the entire video, which takes longer and can slightly reduce quality. It also doesn't have noise reduction filters.

Mac Screen Recordings

If you recorded your Mac screen using the built-in Screenshot toolbar (Cmd+Shift+5) or QuickTime Player, here's how to boost the volume.

Method 1: QuickTime + iMovie

1. Open the recording in iMovie on Mac
2. Select the clip in the timeline
3. Click the volume icon above the viewer
4. Drag the slider up to 400%
5. Export

Method 2: FFmpeg (Free, Command Line)

If you're comfortable with Terminal, FFmpeg is the most powerful option:

ffmpeg -i screen_recording.mov -af "volume=3.0" -c:v copy output.mov

This triples the audio volume. The -c:v copy flag keeps the video untouched (no re-encoding), so it's fast and quality is preserved.

For even better results, use the loudnorm filter to normalize to broadcast standards:

ffmpeg -i screen_recording.mov -af "loudnorm=I=-16:TP=-1.5" output.mov

Windows PC Screen Recordings

If you used Xbox Game Bar (Win+G), OBS, or any other recorder on Windows:

Method 1: Clipchamp (Built into Windows 11)

1. Open Clipchamp (comes pre-installed on Windows 11)
2. Import your recording
3. Click the clip → Audio tab → drag Volume slider up
4. Export

Method 2: DaVinci Resolve (Free, Professional)

1. Import recording into the timeline
2. Switch to the Fairlight (audio) tab
3. Raise the channel fader to boost volume
4. Add a Limiter effect to prevent distortion at high boost levels
5. Export

Method 3: VLC (Playback Only)

If you just need to watch the recording louder (not save it):

1. Open in VLC
2. Drag the volume slider above 100% (goes to 200%)
3. For more: Tools → Preferences → All → Audio → set Volume step to "512"

Why Are Screen Recordings So Quiet?

Understanding the cause helps prevent the problem:

• iOS conservatism — iPhone records system audio at a reduced level to prevent clipping if a notification sound plays during recording
• Microphone auto-gain — when you include mic audio, iOS/macOS reduces sensitivity to avoid distortion, which makes everything quieter
• No audio normalization — unlike professional recording software, built-in screen recorders don't normalize audio levels after capture
• Low source volume — if the app you're recording has its own volume control (like a video player), and it's not at max, the recording captures that lower level

Preventing Quiet Screen Recordings

For your next recording:

• Max out the source volume — turn up the in-app volume of whatever you're recording to 100%
• Turn up device volume — set your iPhone/Mac volume to max before recording
• Use headphones — on Mac, routing audio through headphones sometimes captures at a higher level
• Record mic separately — for voiceovers, record your voice with Voice Memos or a dedicated mic, then combine in a video editor
• Check audio levels first — do a 5-second test recording and check the volume before committing to a long session

Quick Summary

| Platform | Fastest Fix | Quality | |---|---|---| | iPhone | Loudify | Best — boost + noise reduction | | Mac | iMovie or FFmpeg | Good | | Windows | Clipchamp or DaVinci Resolve | Good | | Just watching | VLC | Playback only |