Sound Issue

[Robertfm]

I am having sound problems with my computer. The HDMI link appears to have stopped working. However that is not the issue, my computer has an external sound source unconnected to the graphics card and that is working fine. When I start Sim the sound works fine. Because I have been 'messing about' with cables, when I unplug the sound from the computer and then plug it in again there is no sound from the plane. The Avionics sound works fine and all the settings in FG are correct.

What would cause the sound to stop working by simply unplugging it. When I restart it's fine again.

[wlbragg]

That sounds like the computer is in a mode that recognizes what sound port is being used and switches based on a cable being plugged into it? Or I'm not understanding your issue.

[Robertfm]

That sounds like the computer is in a mode that recognizes what sound port is being used and switches based on a cable being plugged into it? Or I'm not understanding your issue.

Could be except I have tried playing videos and they work fine, when the plane sounds aren't. As I said the Radios etc work.

[danielHL]

If you are on linux, it may be that pulseaudio has assigned different sinks to different audio streams and switches some on "hotplugging" and others not. I've found that for "debugging" pulseaudio problems, the only reliable tool is "pavucontrol".

Windows seems to have gained a similar system dividing sources and sinks for sound streams in recent versions. I don't know how to handle that, though.

[Robertfm]

Sorry absolutely know idea what all that means. I use Windows by the way.

[danielHL]

Modern operating systems have sound systems that are able to differentiate between where sound is coming from (sources: application A is playing sound, application B recording etc) and where sound is ending up (called a "sink": sound stream from A goes to speaker output, recorded audio from Mic channel goes to B etc.). This mechanism is also able to respond to events (headphones plugged in, HDMI cable unplugged) and may either redirect sound streams on its own or ask the applications what they'd like to do.

This article https://winaero.com/blog/audio-output-device-apps-individually-windows-10/ seems to explain the system that windows uses. Maybe you check that out and try to switch the audio output of FlightGear to another device.

[Robertfm]

Thanks I'll take a look.