You may have different needs, maybe you have Bluetooth speakers or any other setup. You can check the regex I am using to do it here. So, in the end, I decided to just detect when my Internal Speakers are not the Default Output Device, since I have no external Bluetooth Speakers this should work for me. Jabra Elite Active 65t: Default Output Device: Yes Default System Output Device: Yes Manufacturer: 67 Output Channels: 2 Current SampleRate: 48000 Transport: Bluetooth Output Source: Default In this case, the output adds two extra devices (input and output) and moves Default Output Device: Yes to a new entry, with a useless Default under Output Source. My first attempt was to use this regex that matches whatever Output Source name is on the entry containing the string “Default Output Device: Yes”.īut this does not work when I’m using my Bluetooth headphones. Output Channels: 2 Current SampleRate: 44100 Transport: Built-in Output Source: Headphones Checking for all kinds of headphones The issue we talked about linked a StackOverflow thread where user jordan314 suggested using system_profiler to check for the audio source like this:Īnd when I connect my wired headphones it just changes the “ Built-in Output” like this: Built-in Output: Default Output Device: Yes Default System Output Device: Yes Manufacturer: Apple Inc. It appears there is an open issue related to this problem: SwitchAudioSource won’t work consistently over Mac OS versions. It just says “Built-in Output” all the time. In my case, SwitchAudioSource is not returning different values when earphones are connected or internal speakers are being used. Sadly, this solution does not work for me. If the standard headphones are connected this should output “External Headphones”. Here is that bit, extracted from Ranhiru’s code: (‘/usr/local/bin/SwitchAudioSource -c’) In short, you have to install SwitchAudioCore using homebrew and then run the installed program as a shell script. You can take a look at the full solution in his blog post.

Ranhiru Jude Cooray improved the script to use SwitchAudioSource to detect whether your headphones are connected or not.

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