How to Use Bluetooth Headphones (with Microphone) in MacOS [Reaper Tutorial]

Using a bluetooth headset - that is headphones with a built-in microphone - is surprisingly troublesome in Reaper on MacOS. The problem is that Reaper sets the sample rate to the lowest sample rate supported by the selected audio device as a whole. Since the microphone on most headsets don't go above 10 kHz (I keep saying 8 kHz in the video, but you get the gist), Reaper will switch the whole project into 10 kHz even when you are not recording. In this video I will provide a fix for that!

00:00 Intro
01:00 Problem Diagnosis
01:52 The Solution
03:43 Wrap-up - please subscribe!

The production of this video was unexpectedly hard. I tried recording the voiceover in one instance of Reaper while screen recording the solution in a second instance. While this technically works, my always problematic i9 MacBook pro choked and the voiceover became choppy to an extent where even Izotope Rx couldn't save it. Fortunately the Canon camera recorded audio as well, but it's not in the quality I would have wanted. But good enough I guess...
I also planned for a green-screened talking head, but that turned out horrible (couldn't get a good chroma key).

Equipment used:
- Reaper 6.73 - "the unstable version"
- Davinci Resolve
- Canon EOS 760D
- Airpods Pro gen 2
- Focusrite Scarlett 2i4
- Elgato Ring Light