> I assume the ringing you hear is on your PC and its playback
> gear. If it were me I'd go ahead and burn a standard audio CD
> and then play it back on a different system, preferably a quality
> hi-fi system, and see if the ringing is heard on playback there too.

It is. The ringing is in the file

One test piece I use is "Solveig's Song" from Peer Gynt. At 44.1kHz
the soprano sounds like she's singing through a cheese grater, but
at 96kHz it's pretty good

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