I think it came up in another thread that with some broadcast-sourced shows there's been music (no just noise) above 15kHz with a stripe. 99.9% of all fm or tv broadcasts (I would like to say 100) have the stripe and a slightly uneven cutoff around 15kHz... so this is strange indeed
So could this be caused by a bad soundcard? HIFI VHS archiving, perhaps?
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