Factorio Forums

1. What did you do?
- start factorio
- hear audio from system speakers
- connect bluetooth headphones
2. What happened?
- audio continues to play through computer speakers
3. What did you expect to happen instead?
- audio switch to headphone output

Related (i think): Sound drops completely when disconnecting bluetooth headphones
1. What did you do?
- connect bluetooth headphones
- start factorio
- hear audio through headphones
- disconnect bluetooth headphones
2. What happened?
- audio drops completely
3. What did you expect to happen instead?
- audio switch to system speakers

This did not occur in the past.
I am unsure if this started after a Factorio update or an OS update.
I first noticed the issue after recently updating both the game and the OS.

Factorio version: 1.1.69 (build 60061, mac)
OS version: macOS Monterey 12.6
Computer: MacBook Pro (16-inch, 2021) Apple M1 Pro
Headphones: Bose NC 700 HP

Attached logs:
factorio-current.log - connected headphones -> started factorio -> disconnected headphones
factorio-previous.log - started factorio -> connected headphones

Thanks, I didn't search well enough. Cross-posted my information in that thread. Linked back here for logs.

I switched the audio subsystem as suggested and it resolved my issue.