Can anyone reliably ABX OPUS at 160kbps? 2018-05-06 15:12:23 It's taken me around a year to settle on a bitrate that (to my ears) is truly transparent across all material. For a time, 144kbps did the trick well enough, but some tracks would present with slightly softened / less present high frequency detail (we're talking above 18,000Hz) - in particular, rides and hi-hats with sharp attacks and lots of energy above this range would sound slightly muted when awash other high frequency noise (like cymbal crashes with long tails). The difference at 144kbps was minimal, but definitely there, and so I was reliably able to tell the OPUS file apart from the original FLAC in these select cases 100% of the time. It seems that there is still synthetic rendering in this range that does a good, but not perfect job at capturing the true tone of these sounds when there is competition with other high frequency noise. For the record, my hearing tops out at 19,300Hz.Upping the bitrate to 160kbps (VBR) takes care of these lingering cases and allows the high frequency sounds I mentioned to retain their crispness / presence even when awash with competing noise. This was the final audible difference left and now my entire library (not just the majority as was the case previously) sounds indistinguishable from the original lossless source. To my ears, it seems that this is the bitrate which achieves "true" transparency for those more sensitive to high frequency detail.I'm curious if there are others out there who are sensitive to HF that have to push beyond 160kbps, and if so, are there any samples you can share that you've found that you can reliably ABX at this bitrate?