How To Fix No Audio In After Effects
Few things are more frustrating than importing footage into After Effects, pressing play, and hearing absolutely nothing. The video plays. The timeline moves. Everything looks normal. But there's no audio.
In some cases, you might hear audio that sounds distorted, delayed, choppy, or slowed down. In others, the audio may disappear completely even though the footage itself contains sound.
The good news is that most After Effects audio problems can be fixed in just a few minutes once you know where to look.
In this guide, I'll walk through every common cause of audio playback issues in After Effects and show you exactly how to fix them.
First: Understand How Audio Works in After Effects
Many beginners assume After Effects works like Premiere Pro. It doesn't. Premiere Pro is designed for real-time video editing and audio playback. After Effects is primarily a motion graphics and compositing application.
Because of this, audio previews sometimes behave differently, especially when working with:
Large compositions
High-resolution footage
Complex animations
Heavy effects
Low-memory systems
Understanding this difference helps explain why audio issues happen more frequently in After Effects than in traditional editing software.
Common Symptoms
You may be experiencing one or more of these problems:
No audio during preview
Audio plays but sounds distorted
Audio playback is delayed
Audio skips or stutters
Audio is extremely quiet
Audio waveform appears but no sound plays
Imported video has no audio
Audio disappears after an update
Let's go through the solutions one by one.
Fix #1: Check if Audio Is Muted
It sounds obvious, but this is one of the most common causes of missing audio. Inside the Composition panel, After Effects allows you to mute audio playback.
How to Check
Look for: Audio Toggle Button inside your preview controls. Make sure audio playback is enabled. If audio has been muted accidentally, previews will play silently even though your footage contains sound.
Fix #2: Verify Layer Audio Is Enabled
Every layer inside After Effects has its own audio controls. If a layer's audio switch is disabled, the footage will play without sound.
How to Check
Locate your footage layer. Make sure: Audio Switch (Speaker Icon) is enabled. If the speaker icon is turned off, After Effects won't play audio from that layer.
Fix #3: Use RAM Preview Correctly
Many users press the Spacebar expecting After Effects to behave like Premiere Pro. Depending on your version and preview settings, Spacebar may not provide the best audio playback experience.
Recommended Method
Open: Window → Preview
Verify:
✓ Audio Preview Enabled
✓ Audio Playback Enabled
✓ Cache Before Playback Enabled
Then use:
Numeric Keypad 0 for RAM Preview. This allows After Effects to cache frames before playback, resulting in smoother audio performance.
Why Audio Sometimes Stutters
When After Effects can't render frames fast enough, audio playback often suffers. The software prioritizes rendering frames first. If your system is struggling, you may notice:
Choppy audio
Delayed playback
Skipping sound
This doesn't necessarily mean your audio file is broken. It usually means your system is overloaded. If previews are slow overall, not just audio, also follow How to fix After Effects lag and slow preview.
Fix #4: Check Audio Hardware Settings
Incorrect audio device settings can prevent sound from playing entirely.
Open Audio Hardware Settings
Navigate to: Edit → Preferences → Audio Hardware
Inside the settings window:
Device Class
Windows: MME
Mac: CoreAudio
Default Output
Choose:
Speakers
Headphones
Audio Interface
Whichever device you're actively using. Sometimes After Effects selects disconnected devices after system updates.
Fix #5: Purge Memory and Cache
Corrupted cache files can occasionally cause audio playback issues.
Clear Cache
Navigate to: Edit → Purge
Then select:
All Memory & Disk Cache
After Effects will clear temporary files and rebuild previews. This often resolves strange playback behavior.
Fix #6: Reduce Preview Resolution
If your computer struggles to render frames, audio playback can become unstable. Try lowering preview quality.
In the Composition Panel - Change: Full → Half or Full → Quarter
This reduces system load and often improves audio playback dramatically.
Fix #7: Allocate More RAM to After Effects
Audio problems sometimes appear when After Effects doesn't have enough available memory.
Check Memory Allocation
Go to: Edit → Preferences → Memory & Performance
Adjust:
RAM Reserved For Other Applications
Recommended values:
| Installed RAM | Reserve |
|---|---|
| 16 GB | 3–4 GB |
| 32 GB | 4–6 GB |
| 64 GB | 6–8 GB |
Giving After Effects more memory can improve both video and audio previews.
Fix #8: Verify Audio Exists in the Source File
Sometimes the issue isn't After Effects at all. The imported file may not contain audio.
How to Verify
Import the same file into:
Premiere Pro
VLC Media Player
Windows Media Player
If there's no sound there either, the source file may not contain an audio track.
Fix #9: Display Audio Waveforms
Waveforms help confirm whether After Effects is detecting audio correctly.
Show Audio Waveforms
Select your layer.
Press the key on keyboard L twice quickly. This displays Audio Waveforms in your timeline
If waveforms appear, After Effects is detecting the audio track.
Fix #10: Update Audio Drivers
Outdated audio drivers can cause:
Missing sound
Playback glitches
Device detection problems
Windows users should update:
Motherboard audio drivers
Audio interface drivers
USB audio device drivers
especially after major operating system updates.
Bonus Tip: Preview Audio in Slow Motion
This is useful when editing:
Lip sync animation
Dialogue timing
Sound effects
Motion graphics synced to music
Windows
Hold: Ctrl and drag the Current Time Indicator.
Mac
Hold: Command and drag the Current Time Indicator.
You'll hear audio playback in slow motion, making it easier to work frame by frame. Many experienced motion designers use this technique regularly.
Quick Troubleshooting Checklist
If you're still not hearing audio:
✓ Verify audio isn't muted
✓ Enable layer audio switches
✓ Check Preview panel settings
✓ Confirm correct output device
✓ Purge memory and cache
✓ Lower preview resolution
✓ Allocate more RAM
✓ Verify audio exists in source footage
✓ Show waveforms using L twice
✓ Update audio drivers
Frequently Asked Questions
Why Can I Hear Audio in Premiere Pro But Not in After Effects?
Premiere Pro and After Effects use different playback systems. If audio works in Premiere but not After Effects, the issue is usually:
Preview settings
Audio hardware settings
Cache problems
Premiere and After Effects handle playback differently - for a broader workflow comparison, read After Effects vs Premiere Pro.
Why Does Audio Sound Choppy?
This typically happens when After Effects can't render frames fast enough.
Try:
Lowering preview resolution
Closing background applications
Increasing RAM allocation
Purging cache
Why Is My Audio Delayed?
Audio delay is often caused by:
Insufficient RAM
Slow storage
Heavy compositions
Corrupted cache files
Clearing cache usually resolves the issue.
Final Thoughts
Most "No Audio" problems in After Effects are surprisingly simple to fix once you know where to look.
The biggest culprits are usually:
Muted audio settings
Incorrect audio hardware configuration
Preview settings
Cache corruption
Limited system resources
Once preview audio is working, make sure your final render keeps it too — see our After Effects export guide for correct output module and audio settings.
Start with the basic fixes first, especially checking audio hardware settings and preview options. In many cases, you'll have sound working again within a minute or two. If you're working with complex motion graphics projects, maintaining sufficient RAM, SSD storage, and clean cache files will also help prevent future audio playback issues and keep After Effects running smoothly.
