The VideoLAN Forums

Too bad, would have been great if VLC decoded AC3 the same way my Logitech Z-5450 does.

VLC does not normally use libavcodec to decode AC3. Most probably VLC or ALSA or PulseAudio is configured for stereo output. Okay I wasn't aware that VLC uses something else to decocde AC3. I had already configured VLC to use 6 channels for ALSA (Tools -> Preferences -> All -> Audio -> Output modul...

I'm trying to understand some behavior I have been seeing with a number of videos containing AC3 audio. When looking at the Codec Information window, the AC3 audio is often (but not always, depending on the video) recognized as 2.0 stereo audio. When I use SPDIF pass-through, the decoder (Logitech z...