How to Record Microphone and System Audio on Mac
A microphone recording gives you your side of a conversation. It does not automatically include the people speaking through a call app, a video playing in the browser, or any other sound coming from the Mac. For a complete audio record, you need two sources at once: the microphone and the Mac's system audio.
Short answer
To record microphone and system audio on Mac at the same time, use an app that captures both sources directly. Grant it Microphone access for your voice and Screen & System Audio Recording access for sound from calls, browser tabs, videos, and other apps. Make a short test before the real session, then check that both sides are present in the saved file.
Use a screen recorder when the picture matters. Use an audio-routing tool when another app needs to receive the sound as an input. If the result you want is an audio file, transcript, or summary, an audio-only recorder is the shorter path.
Know which source records what
Microphone audio is the sound entering the selected input device: your Mac's built-in mic, a headset, a USB microphone, or an audio interface. On a call, this is normally your side of the conversation.
System audio is the sound the Mac plays from apps. That includes the other people in Zoom, Google Meet, Teams, or FaceTime-style calls, plus browser audio, videos, webinars, media players, and app sounds. Recording only one source leaves half the job unfinished.
- Microphone only: your voice is present, but remote speakers may be missing.
- System audio only: remote speakers are present, but your voice may be missing.
- Microphone plus system audio: both sides can be kept in one synchronized recording.
Why the built-in Mac recorders do not cover the full job
QuickTime Player can make an audio-only recording, but Apple's recording options ask you to choose a microphone. Voice Memos works the same way: it records from the built-in microphone, a headset, or another input. Neither gives you a direct microphone-plus-system-audio setup for calls and app playback.
That does not mean macOS prevents system-audio recording entirely. Current macOS versions let approved apps capture it, but the user must grant a separate privacy permission. The wording can appear as Screen Recording or Screen & System Audio Recording, depending on the macOS version.
Choose the workflow from the file you need
Start with the result, not the tool. A product demo with cursor movement needs video. A podcast edit may need separate tracks and detailed gain control. A customer call you want to search next week may only need the source audio, transcript, and summary.
This avoids installing a routing driver for a recording job or saving a large video when the screen adds nothing useful.
- Platform recording: best for an official shared meeting copy when the organizer can provide it.
- Screen recording: best when slides, cursor movement, or visual state must be preserved.
- BlackHole, Loopback, or an OBS setup: best when you need routing, streaming, editing control, or audio delivered into another app.
- Audio-only local recorder: best when the useful result is source audio and optional text files.
Set up Transcrio to capture both sources
Install Transcrio on a Mac running macOS 15 or newer, open it from the menu bar, and sign in. Complete this before a live call. The full setup guide covers installation and recovery if macOS does not show a permission again.
Allow Microphone access for your selected input and Screen Recording access for the sound playing on the Mac. Apple explains that system-audio access can be reviewed under Privacy & Security in System Settings. If macOS asks you to restart the app after changing access, quit Transcrio completely and reopen it.
Open Settings and choose the microphone you actually use for calls. Turn on Keep separate mic/system source files while testing. Leave Prevent Mac sleep during recording enabled for longer sessions. Keep Transcribe after recording on when you want text afterward; turn it off when you only need local audio and do not want to spend transcription minutes.
- Microphone: select the built-in mic, headset, USB mic, or interface you intend to use.
- Separate files: keep this on until you have verified both sources independently.
- Transcription: enable it only when the session should become a transcript and summary.
- Sleep prevention: leave it on unless you have a specific reason not to.
See the Transcrio workflow
From recording on a Mac to a local transcript and summary.
Run a 20-second test before the real recording
Do not use an important call as the first test. Put on headphones, play a short spoken clip in the browser, start recording, and say a sentence into the selected microphone. Stop after about 20 seconds.
Open the new session folder. Listen to recording_stereo.m4a first. With separate source files enabled, also check raw_mic.m4a and raw_system.m4a. The mic file should contain your test sentence. The system file should contain the browser clip. This catches a wrong microphone or missing permission before it costs you a real conversation.
- Use headphones so the microphone does not pick up the speakers and create an echo or duplicate voice.
- Keep the same input and output devices you will use during the real session.
- If one source is silent, fix it and repeat the short test instead of guessing.
Record the call, lecture, or browser audio
Start Transcrio just before the useful audio begins. Use the call app, browser, or media player normally, then stop when the useful section ends. There is no meeting bot to invite and no platform-specific recording button to find.
Avoid switching between speakers, wired headphones, AirPods, displays, or audio interfaces during the recording. A device change can interrupt the capture path. For a long session, keep the Mac connected to power and confirm that sleep prevention is enabled.
Understand the files after you stop
Every completed session keeps recording_stereo.m4a as the main local recording. It is an AAC .m4a file at 128 kbps, with microphone audio on the left channel and system audio on the right channel. If Keep separate mic/system source files is enabled, the folder also keeps raw_mic.m4a and raw_system.m4a.
When transcription is enabled, Transcrio uses the stereo recording for processing and saves transcript.txt, transcript.json, summary.txt, and session_note.txt locally as those steps finish. Processing is not fully offline. Transcrio uses temporary backend and provider handling for transcription and summary, but does not keep the audio, transcript, or summary as long-term product storage.
- Keep the original audio when exact wording, tone, or verification may matter.
- Use the transcript for search and detailed review.
- Use the summary for decisions, tasks, questions, and follow-up.
- Keep separate source files when you may need to inspect one side of the recording on its own.
Fix the common failures
A silent recording usually has a concrete cause. Check the missing source instead of reinstalling everything at once.
- System audio is missing: allow Transcrio under Privacy & Security > Screen & System Audio Recording, then fully reopen the app if macOS requests it.
- Your voice is missing: confirm Microphone permission and select the correct input in Transcrio Settings.
- Remote voices sound doubled: use headphones so the mic does not record the speakers as well as the system-audio source.
- The recording stopped after a device change: keep one tested audio input and output for the whole session.
- The internet dropped: keep the local source file in place. Transcrio can queue transcription and retry after the connection returns.
When another tool is the better choice
Transcrio is built around saved audio and reusable text, not screen production or pro audio routing. Use the simpler recorder path only when it matches the artifact you need.
Choose a screen recorder for visual tutorials. Choose OBS for scenes, streaming, and video sources. Choose BlackHole or Loopback when another app needs a virtual input or you are building a custom routing chain. Choose a live AI notepad when real-time notes and a team workspace matter more than keeping the recording. The BlackHole guide explains the recorder-versus-routing distinction, while the Granola comparison covers the live-notes choice.
Next steps
FAQ
Can a Mac record microphone and system audio at the same time?
Yes. Use an app that captures both sources and grant it Microphone plus Screen & System Audio Recording permissions in macOS.
Why does Transcrio need Screen Recording permission for audio?
macOS controls access to sound from apps under Screen & System Audio Recording. Transcrio uses that permission for system audio; it does not need to save a screen video.
Can QuickTime record microphone and system audio together?
QuickTime's audio-only recorder accepts a microphone input. Capturing system audio as well requires an additional routing setup or an app that captures both sources directly.
Does Transcrio keep separate microphone and system audio files?
It can. Enable Keep separate mic/system source files to keep raw_mic.m4a and raw_system.m4a beside the main recording_stereo.m4a file.
Can I record without spending transcription minutes?
Yes, while your trial or paid access is active. Turn off Transcribe after recording. The audio stays on your Mac, no transcription job is created, and no transcription minutes are used.
Does Transcrio transcribe fully offline?
No. Recording is saved locally first, but transcription and summary processing require an internet connection. If the connection drops, the local recording can be queued for processing later.
