this post was submitted on 01 Feb 2026
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Audiophiles Can't Differentiate Audio Signals Sent Through Copper, Banana, and Mud in Blind Test (www.headphonesty.com)
submitted 2 days ago by ooli3@sopuli.xyz to c/science@beehaw.org
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[–] ChaoticNeutralCzech@feddit.org 1 points 16 hours ago* (last edited 8 hours ago)

I mean, when browsing teletext with your decoder you'd get the TV channel's audio unless you muted it. Did you mean "teletext demo" programs that didn't require decoders and were often broadcast just before signoff? In Czechoslovakia before 24-hour TV, we'd get classical music, signoff, the anthem (pre-1989), and then a test pattern with a radio station. Video of this
I'd imagine some teletext demo programs did have radio playing.