Pipeline, very interesting. But an encoding rate that low (48 kbps) isn't all that normal. Perhaps if you showed .WMA files at 128 or 196, it would be more representative of how folks make their compressed files?
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BIAB 2020 Win Audiophile & 2020 Mac UltraPak. Software: Cakewalk, Adobe Audition CC, Notion; Win 10 64 Pro. Hardware: custom i7 16 Gb; Roland Integra-7, Focusrite 18i20(2), TCE Finalizer, Behringer X-Touch, Adam sub & monitors.