QAAC: discussion, questions, feature requests, etc. Reply #200 – 2012-08-14 21:24:11 Quote from: jetpower on 2012-08-14 21:15:58AAC has less holes in high freq, also are you a bat?No not a bat does "less holes in high freq" mean a worse encode quality? I think the hard cutoff at ~19.5kHz by AAC is no good but not sure about that.I'm curious if iTunes does their encodes using the same QuickTime library or something else. Looked at iTunes original track which otherwise was a noticeably higher bitrate but there wasnot such a hard cutoff. Finally I'm not too impressed by the spectral of this TVBR.