Sound swapped to HDMI on its own

I read on one of these threads that someone was having problems with sound and that videos where muted when playing the video, well, i was watching a video, cant remember what or where it was, it was a trailer for anew movie,i couldnt here the sound, so i left ie9 running and copy/pasted the link into firefox, the sound started coming out of my monitor in firefox instead of my chosen default which was 7.1 realtek audio, in the volume icon i had both volume controls for the nvidia hdmi and my default,so i disabled all sound except my default, refreshed the page in ie9 and i got the sound, this as never happened to me since owning a pc or laptop, weird, how can it change the default sound on its own,maybe this is why that other person couldnt here anything because it happened to them also, im sorry i cant give you anything to reproduce it as i cant remermber the video but im sure it was on youtube, could adobe take alook at the programming to see if theres anycode that woulkd make it switch to other than the default sound.

Thanks for the note.
While we'd like to investigate, there's not a lot of actionable information here.
If you find a set of reproducible steps, please file a bug here:
https://bugbase.adobe.com/
Please include as much information as possible about your configuration. Video and audio driver information would be particularly interesting.

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Sure, sounds good.
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<Edited by Moderator>

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Message was edited by: Katrina S.

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