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This diff adds the 192kbps OPUS transcoding profile named opus_audiophile. While 128kbps is already near transparent and good for most use cases, sometimes (or by some people) a bit more is preferred. These are typically for dedicated high quality wireless audio link (A2DP-bluetooth) enabled headphones and Hi-Fi adapters. The 160-192kbps range is considered to be transparent with very low chance of artifacts (only with very few and specific samples)[1][2]. [1] https://wiki.hydrogenaud.io/index.php?title=Opus [2] https://ceur-ws.org/Vol-2654/paper25.pdf