On this page
- 01The short answer
- 02Which sound did you expect?
- 03Restore microphone recording
- 04Treat computer sound as a separate capture requirement
- 05Use a two-source test
- 06Check devices after reconnecting hardware
- 07When the recording has sound but the editor does not
- 08What can you salvage from a silent recording?
- 09Record the next take with confidence
- 10Sources
- 11Cite this page
The short answer
Short answer
First identify what is missing: your microphone, the computer's sound, or both. Select and test each source in the recorder, check the relevant macOS permissions, and play a saved sample before recording again. Microphone permission does not automatically enable computer-audio capture.
If the sound was never captured and no separate recording exists, turning up the exported video cannot recover it. Preserve the file, but fix capture before repeating the take.
Which sound did you expect?
Picture but no voice
- First thing to check
- Microphone selection and permission
- Why
- The recorder may be using no input or the wrong device
Voice but no app sound
- First thing to check
- Computer/system-audio capture
- Why
- The microphone and desktop audio are different sources
App sound but no voice
- First thing to check
- Microphone device and mute state
- Why
- Computer-audio capture does not record narration by itself
Audio in preview but not in the saved file
- First thing to check
- Recording output and track selection
- Why
- Monitoring a source is different from saving it
Silence only after import into an editor
- First thing to check
- Clip mute, routing and selected tracks
- Why
- The source file may still contain the sound
| Saved result | First thing to check | Why |
|---|---|---|
| Picture but no voice | Microphone selection and permission | The recorder may be using no input or the wrong device |
| Voice but no app sound | Computer/system-audio capture | The microphone and desktop audio are different sources |
| App sound but no voice | Microphone device and mute state | Computer-audio capture does not record narration by itself |
| Audio in preview but not in the saved file | Recording output and track selection | Monitoring a source is different from saving it |
| Silence only after import into an editor | Clip mute, routing and selected tracks | The source file may still contain the sound |
Start by opening the raw recording in a second player. That separates a capture problem from an editing or playback problem.
Restore microphone recording
For the built-in Screenshot controls, press Shift + Command + 5, open Options and select the microphone you intend to use. Apple's recording guide describes these microphone choices. Apple screen-recording instructions
For another recorder, use its audio settings rather than assuming Screenshot's choice carries over.
Next check System Settings > Privacy & Security > Microphone. Apple documents the switches for each application. Apple microphone permissions
Then:
- 1Confirm the application is permitted to use the microphone.
- 2Select the actual device in the recorder.
- 3Speak and look for an input meter if the recorder provides one.
- 4Check the mute controls.
- 5Save a test and listen to it.
If the application asks you to quit and reopen after changing permissions, follow that prompt. A moving meter is helpful evidence, but the saved test is what proves narration reaches the output.
Treat computer sound as a separate capture requirement
Computer sound means audio from applications, such as a demo notification or a playing video. It is not the same as the microphone hearing speakers in the room.
The available capture options depend on macOS version and recorder. Apple's current guide documents an Include System Audio option for macOS 27 or later. Do not assume an older Mac has the same built-in controls. Apple's version-qualified recording options
A dedicated recorder can have a different path. OBS documents desktop or application-audio capture on supported newer macOS versions; its guide describes the macOS Audio Capture source for OBS 30 on macOS 13 and later. OBS macOS audio capture guide
The practical decision is therefore:
- Check your actual macOS version.
- Check the recorder's supported audio-capture method.
- Enable the correct source.
- Record computer sound alone to confirm that it is captured.
Avoid installing an audio driver solely because an old article says every Mac requires one. Use current documentation for the setup you actually have.
Use a two-source test
This short procedure isolates the problem without requiring a full demo retake.
Test A: microphone only. Disable computer-audio capture, speak a recognisable sentence, and save the recording.
Test B: computer sound only. Disable the microphone, play a harmless audio sample from the application you need to capture, and save again.
Test C: both sources. Enable both, speak, and trigger the same sound.
A works, B fails
- What it tells you
- Investigate system/application-audio capture
B works, A fails
- What it tells you
- Investigate microphone selection or permission
A and B work, C has echo
- What it tells you
- Check monitoring and duplicate capture paths
All fail
- What it tells you
- Check recorder output, permissions and saved-file playback
Saved tests work, editor is silent
- What it tells you
- Inspect the import and editing path
| Test result | What it tells you |
|---|---|
| A works, B fails | Investigate system/application-audio capture |
| B works, A fails | Investigate microphone selection or permission |
| A and B work, C has echo | Check monitoring and duplicate capture paths |
| All fail | Check recorder output, permissions and saved-file playback |
| Saved tests work, editor is silent | Inspect the import and editing path |
This is a diagnostic method, not a guarantee about a particular application's controls.
Use headphones during the combined test if speaker playback is being picked up by the microphone. Otherwise the saved file can contain a direct computer-audio signal and a delayed room copy.
Check devices after reconnecting hardware
If you plugged in a USB microphone, changed a headset or moved to a dock, recheck the recorder's selected device. The audio route you used yesterday may no longer be the route you need.
Make the recorder use a specific device when that option exists. Speak into it while watching the meter, then listen to the saved output. If the wrong microphone is selected, room sound or keyboard noise may disguise the mistake until you hear the recording.
For Bluetooth or other headsets, evaluate the actual recorded voice quality. Device names alone do not establish which capture mode or sound quality the application is using.
When the recording has sound but the editor does not
Open the original file before changing the editor project. If the original contains audio, inspect:
- Whether the clip is muted.
- Whether its audio track is present.
- Whether the timeline or output is muted.
- Whether you selected the intended audio channel or track.
- Whether the preview device is the expected one.
- Whether the export includes the intended audio.
Fix one setting at a time and use the same short section to test it. Changing capture permissions will not fix an already-imported clip that is simply muted on the timeline.
What can you salvage from a silent recording?
If you have a separate microphone recording, align it with the video using an identifiable event and check timing near the beginning and end.
If you have no original audio, you can record replacement narration for a software demo. That creates new audio; it does not recover the original sound. Match the narration to what the viewer can see.
For a meeting or interview, do not present recreated speech as the original conversation. Consider whether a retake or a clearly labelled recap serves the purpose.
Record the next take with confidence
Rushilo's site documents Mac capture with microphone and computer sound. Its screen recorder is Mac only, while the editor supports Mac and Windows. We make Rushilo; confirm your saved sample before relying on any recorder for an important take. Rushilo recording FAQ
For a product demo, add the audio test to your recording preparation. Check picture, microphone and computer sound in the saved file, then begin the real take.
Sources
- Apple screen-recording instructionsChecked October 13, 2026. See the linked documentation and the claim it supports in the article.
- Apple microphone permissionsChecked October 13, 2026. See the linked documentation and the claim it supports in the article.
- OBS macOS audio capture guideChecked October 13, 2026. See the linked documentation and the claim it supports in the article.
Cite this page
Last verified: Oct 13, 2026
Patel, O. (2026, October 13). Mac screen recording has no audio: diagnose the missing source. Rushilo. https://rushilo.com/blog/mac-screen-recording-no-audio
About the author
Founder, Rushilo
Om Patel is the founder of Rushilo, a desktop video editor driven by the user's own AI, and of BigIdeasDB, a research platform that reads real complaints and reviews to help founders validate products. He writes Rushilo's research articles with the same method: primary sources, dated numbers and the words real users write.
