3
Especially since I didn't know that AAC requires ~200MHz just to decode, this data puts things into perspective. Thank you for sharing this!
Strange again. Here are what I got with this two-disc album encoded into a single file.
https://www.discogs.com/release/2452858-Andrew-Lloyd-Webber-The-Phantom-Of-The-Opera
System:
CPU: 12th Gen Intel(R) Core(TM) i3-12100, features: MMX SSE SSE2 SSE3 SSE4.1 SSE4.2
App: foobar2000 v1.6.16
Settings:
High priority: no
Buffer entire file into memory: yes
Warm-up: no
Passes: 1
Threads: 1
Postprocessing: none
WavPack fast x4 (713kbps):
Opening time: 0:00.000
Decoding time: 0:11.177
539.596x realtime
AAC-LC (195kbps):
Opening time: 0:00.001
Decoding time: 0:02.763
2181.658x realtime
Opus (195kbps)
Opening time: 0:00.000
Decoding time: 0:12.665
476.231x realtime
flac -8 (684kbps)
Opening time: 0:00.000
Decoding time: 0:04.554
1324.298x realtime
Not just a processor architecture thing I suppose?