Sometime after my otherwise successful upgrade to Windows 10 I connected my laptop to a Samsung TV like I had done a million times before and was irked to discover that the sound output was no longer working.
As I expected, the google consensus was that I needed some driver updates. After a wasting a good 30 minutes installing and reinstalling various drivers I stumbled across the solution by accident.
If you have a similar problem, try checking the default playback format of your device before wading into the driver quagmire, like so:
Find your Monitor/TV/whatever in the Playback Devices window (see below) and view it’s properties.
On the Advanced Tab check the Default Format. For me, Windows had chosen to set this to ‘24bit, 48000 Hz (Studio Quality)’. Lowering this value a bit (see below) restored the audio.
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