When MSFS ATC audio is missing, pilots may see radio messages on screen but hear no controller voices, reducing immersion and making communication harder to follow.
If you’re still becoming familiar with simulator sound settings, device configuration, and communication options, our MSFS 2024 controls and hardware setup guide explains the essential setup steps that often restore proper audio behaviour quickly.
This guide walks through the fixes in the order that solves the issue for most people.
Try These Quick Checks First
Before changing deeper settings, start here.
1 Fully close Microsoft Flight Simulator and restart it
2 Make sure your headset or speakers are connected before launching the sim
3 Temporarily disable Bluetooth headsets and test with wired audio
If ATC audio is still missing or unreliable, continue with the steps below.
Check the ATC Audio Output Device in MSFS
This is the single most common cause of missing ATC audio.
MSFS allows ATC audio to use a different output device than engine and cockpit sounds. If ATC is routed elsewhere, you will hear everything except ATC.
Inside MSFS, go to General Options and open Sound. Check the following.
1 ATC Output Device is set explicitly to your headset or speakers
2 ATC Volume is turned up high enough
3 Text-to-Speech Volume is not set too low
Avoid leaving the output device set to Default, as this often sends ATC audio to the wrong place.
Check Windows Audio Routing and Volume Mixer
Windows can override application audio without warning.
With MSFS running, open the Windows volume mixer and confirm the following.
1 Microsoft Flight Simulator is not muted
2 MSFS is using the correct output device
3 Volume levels are not unusually low
Then open Windows sound settings and verify that your preferred headset or speakers are set as the default output device. If you see unused devices such as HDMI audio or monitor speakers, temporarily disabling them can help prevent Windows from switching outputs automatically.
Fix Headset Communication Mode Issues
USB and Bluetooth headsets are a prevalent cause of ATC audio problems.
When MSFS uses microphone input, Windows may switch the headset into a communications or hands-free mode. This often causes the following.
• ATC audio becomes very quiet
• Audio quality drops noticeably
• ATC cuts in and out during flight
To fix this, open Windows sound settings and check the communications option. Set it to Do nothing so Windows does not automatically lower the volume. If your headset appears twice in the device list, such as a normal version and a hands-free version, disabling the hands-free version often stabilises ATC audio.
ATC Audio Cuts Out During the Flight
If ATC audio works at first but disappears later, the cause is usually related to device changes or power management.
Common triggers include the following.
• Alt-tabbing frequently
• Plugging or unplugging audio devices mid-flight
• USB power saving
• Switching between full screen and windowed mode
To reduce dropouts, disable USB power saving in Device Manager, avoid changing audio devices while the simulator is running, and consider using windowed or borderless mode instead of exclusive full screen.
Check Windows Text-to-Speech Settings
MSFS relies on Windows text-to-speech voices for ATC.
Open Windows speech settings and confirm the following.
1 An English voice is installed
2 The voice works correctly in Windows
3 Speech settings have not been disabled by an update
Switching to a different English voice and restarting MSFS can sometimes restore missing or unreliable ATC audio.
Test Without Add-ons
In some cases, third-party software interferes with ATC audio.
This can include the following.
• Audio enhancement software
• Virtual audio cables
• ATC or radio-related add-ons
Launching MSFS in Safe Mode with a default aircraft is the quickest way to test this. If ATC audio works normally in Safe Mode, re-enable add-ons one at a time until the issue returns.
Why This Happens So Often
ATC audio problems are common because MSFS separates audio channels and closely follows Windows audio routing rules. Even small changes, such as a Windows update, driver update, or headset swap, can disrupt how audio is handled.
Once the correct combination of settings is found, the issue usually remains fixed unless something changes again.
Final Thoughts
If MSFS ATC audio is missing, too quiet, or cutting out, the cause is almost always one of the following.
• ATC routed to the wrong output device
• Windows overriding audio settings
• Headset communication mode issues
Audio playback problems can sometimes be linked to Windows sound-device routing, simulator output selection, or known issues introduced by updates rather than in-sim settings alone. Microsoft’s official Windows sound troubleshooting guidance provides additional diagnostic steps that can help resolve persistent audio problems affecting applications such as Microsoft Flight Simulator.