So you need to record your Mac screen with audio? Honestly, I've been there – scrambling before a presentation because my mic wasn't picking up sound, or realizing too late that my gameplay commentary went silent. Getting Mac screen recording with audio right shouldn't be this tricky, but Apple doesn't exactly make it obvious. After testing every method imaginable (and wasting hours troubleshooting), here's everything I wish I'd known upfront.

Why Audio Crashes Your Mac Recordings (And How to Fix It)

The biggest headache? macOS blocks internal audio recording by default due to security. That means without extra steps, QuickTime will only grab microphone audio, not your system sounds. Frustrating when you're trying to capture video calls or game audio. Here's the breakdown:

Built-In Method: QuickTime + Soundflower (Free but Clunky)

Apple's hidden workaround involves creating an "aggregate device" in Audio MIDI Setup:

Does it work? Technically yes. But Soundflower hasn't been updated since 2018, and on my M1 MacBook Pro, it caused random audio glitches. If you only need basic recordings occasionally, it's passable. For frequent use? Prepare for headaches.

macOS Mojave & Later: The Screenshot Tool Shortcut

Here's a smoother native option many miss:

• Press Shift+Command+5
• Options > Microphone: Select "Internal Microphone" for voiceover
• BUT... system audio still won't record. Only mic input.

Seriously Apple? Why hype this as a screen recorder when audio is half-baked? If you're doing silent demos, fine. Otherwise, skip it.

Third-Party Tools That Actually Work (Tested & Ranked)

After testing 12 apps, these delivered reliable Mac screen recording with audio without constant tweaking:

Recording Gameplay? Don't Make These Mistakes

When I recorded my first Fortnite session, the audio was choppy mess. Here's why:

• RAM Overload: Recording 1080p60 needs ≥16GB RAM. Check Activity Monitor!
• Overheating: MacBooks throttle performance when hot. Use a cooling pad.
• Wrong Format: HEVC compresses better but needs M1 chip for smooth playback

My current settings for 4K game recording in OBS:

Advanced Audio Routing with Loopback

Want to record Zoom + Spotify + mic simultaneously? Loopback ($99) creates virtual audio devices. Here's my podcast setup:

1. Create new virtual device in Loopback
2. Drag "Computer Audio" and "USB Mic" into sources
3. Select this device as output in Zoom/Spotify
4. In ScreenFlow, set audio input to the Loopback device

Expensive? Yes. But it solves 90% of audio routing nightmares. The free alternative? BlackHole (github.com) – works but less intuitive.

FAQs: Your Audio Questions Answered

Why does my Mac screen recording have no sound after Catalina?

Apple removed kernel extensions for audio drivers. Fix: Go to System Settings > Privacy & Security and approve any audio plugins (like BlackHole) in the bottom section. Reboot after approving.

Best free way to record internal audio?

BlackHole + OBS combo beats QuickTime workarounds. Install BlackHole, set it as output device, then in OBS add "Audio Output Capture" source. Zero cost, minimal lag.

How to avoid echo during recording?

Wear headphones! Otherwise your mic picks up system audio playback. Also disable "Ambient Noise Reduction" in mic settings – it often mutes quiet speech.

Why does audio drift out of sync?

Usually CPU overload. Lower recording resolution or close Slack/Chrome. In post-production, most apps let you nudge audio tracks. In Final Cut Pro: hold ` while dragging clip edges.

Pro Workflow for YouTube Tutorials

After producing 120+ tech tutorials, here's my foolproof system:

• Step 1: Use Loopback to merge mic + system audio
• Step 2: Record in ScreenFlow at 2560x1440 30fps
• Step 3: Edit with built-in tools (zoom effects, annotations)
• Step 4: Export H.264 at 20Mbps bitrate
• Step 5: Upload directly to YouTube (no re-encoding)

Total time per 10-min video: 25 mins recording, 15 mins editing. Key trick? I record audio before video when demonstrating workflows – if I mess up, I just re-record screen actions while playing back voiceover.

When All Else Fails: Hardware Solutions

If software routing feels too fragile, try these:

I keep an Elgato hooked to my Mac Studio for important sessions. Overkill? Maybe. But never lost a recording since.

Troubleshooting Checklist

Before you rage-quit:

• 🔇 Check mute buttons (mic & system)
• ⚙️ Confirm audio source in recording app
• 🔄 Restart coreaudiod: Terminal: sudo killall coreaudiod
• 🔌 Reseat USB mics/audio interfaces
• 📡 Disconnect Bluetooth headphones during recording
• 🧪 Test with shorter recordings first

Last month my Zoom audio vanished mid-webinar. Panic! Then remembered I'd enabled "Original Sound" in Zoom settings which bypasses Mac audio routing. Toggle settings first!

Do You Really Need 4K?

Here's the truth: 99% of viewers watch on 1080p screens. Recording in 4K:

• Pros: Future-proof, allows cropping in edits
• Cons: 4x larger files, requires M1 Pro/Max for smooth editing

My rule: Record tutorials at 1440p (sharp enough for UI text, smaller than 4K), gameplay at 1080p60 for best performance. Only go 4K for product demo close-ups.

The Final Word on File Formats

Stop using MOV unless editing in Final Cut Pro. My recommendations:

Your Questions from Reddit (Answered)

Can I record Netflix shows on Mac?
Technically yes with tools like Audials, but violates copyright. Not worth the legal risk.

Why is my recorded audio so quiet?
Boost gain in System Settings > Sound > Input. Or use post-processing: in ScreenFlow, select clip > Audio Enhancements > +3dB gain.

Best budget USB mic for recordings?
Fifine K669B ($25). Used it for months before upgrading. Better sounding than most headset mics.

Getting clean Mac screen recording with audio shouldn't require an engineering degree. Stick with OBS for free solutions or ScreenFlow for painless pro results. And always – ALWAYS – do a 10-second test before hitting record. Save yourself from my past mistakes!