AirPods sound bad when you dictate with MacWhisper
AirPods sound bad when you dictate with MacWhisper because it opens their mic and Bluetooth drops to headset audio; CallLane fixes it by locking the input to your Mac's built-in mic. While the AirPods mic is open, everything you hear turns into mono call-quality sound. Set MacWhisper to the built-in mic or the system default, and let CallLane keep macOS from moving the Mac's input back to the AirPods.
Tested on macOS 27.0.1 with CallLane 1.0.5, .
Why MacWhisper dictation makes your AirPods sound worse
MacWhisper’s dictation feature records your voice whenever you press its shortcut. If the mic it records from is your AirPods, Bluetooth switches them from listening mode to headset mode. Headset mode plays mono audio at as little as 16 kHz instead of 48 kHz, so the music or video in your ears drops to call quality until the recording stops. Apple explains the two modes here.
The manual fix
- Open System Settings, then Sound, then Input, and pick your Mac’s built-in microphone.
- Check MacWhisper’s settings for a microphone choice, and if there is one, pick the built-in mic there too. Menus change between versions, so look under Settings, Dictation first.
- Close System Settings. While it shows the Input list, it can hold the mic open.
Why it doesn’t stick
macOS usually makes the AirPods the input again each time they connect. Any app that records from the Mac’s input then opens the AirPods mic, and you’re back in headset mode until you change it by hand. Call apps that pick the AirPods mic themselves do the same.
Keep it on the Mac’s mic with CallLane
CallLane is a menu-bar app with a Lock inputswitch. Pick your Mac’s built-in mic (or a USB mic) and lock it. If macOS or another app moves the input, CallLane puts it back, so MacWhisper on the system default dictates through the Mac’s mic and your AirPods stay in high-quality listening mode.
It works with any dictation app that records from the Mac’s input, which is what their system default or Auto-detect setting does. An app set to the AirPods mic directly ignores the lock, so switch it to the system default or the built-in mic once. CallLane also stops calls from turning your music down by about 20 dB. More on AirPods headset mode.
Questions
Why do my AirPods sound bad when I dictate with MacWhisper?
MacWhisper is recording from the AirPods microphone. Using the AirPods mic forces Bluetooth into headset mode, which plays everything in low-quality mono until the recording stops.
How do I make MacWhisper dictation use my Mac's microphone?
Set System Settings, Sound, Input to the built-in microphone, and if your MacWhisper version has its own microphone choice, pick the built-in mic there too.
Why does my Mac keep switching the input back to AirPods?
macOS usually makes AirPods the input each time they connect. CallLane's Lock input keeps the input on the mic you choose and puts it back if macOS or an app moves it.
Does CallLane work with MacWhisper?
Yes. CallLane works with MacWhisper and other dictation apps. It is a macOS menu-bar app for macOS 14 or later, a one-time purchase with a 14-day refund.