eac3to v3.34
command line: eac3to  F:\REMUX\Blinded.by.the.Light.2019.1080p.BluRay.Remux.AVC.TrueHD.Atmos.7.1-ALiEN.mkv 2:Blinded.by.the.Light.2019.ac3 -384 -progressnumbers
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MKV, 1 video track, 1 audio track, 4 subtitle tracks, 1:57:46, 24p /1.001
1: h264/AVC, English, 1080p24 /1.001 (16:9)
   "MPEG-4 AVC Video /21875 kbps  /1080p / 23.976 fps / 16:9 / High Profile 4.1"
2: TrueHD (Atmos), English, 7.1 channels, 48kHz
   "Dolby TrueHD/Atmos Audio/English /4151 kbps /7.1 / 48 kHz /  3703 kbps / 24-bit"
3: Subtitle (PGS), English, "SDH"
4: Subtitle (PGS), French
5: Subtitle (PGS), Spanish, "Latin American"
6: Subtitle (PGS), Portuguese, "Brazilian"
[a02] AC3 encoding doesn't support back channels. Will mix them into the surround.
[a02] Extracting audio track number 2...
[a02] Decoding with libav/ffmpeg...
[a02] Mixing surround channels...
[a02] Remapping channels...
[a02] Encoding AC3 <384kbps> with libAften...
[a02] Creating file "Blinded.by.the.Light.2019.ac3"...
[a02] Original audio track, L+R+C+BL+BR+SL+SR: max 24 bits, average 19 bits.
[a02] Original audio track, LFE: constant bit depth of 16 bits.
[a02] Processed audio track, L+R+C+SL+SR: max 24 bits, average 20 bits.
[a02] Processed audio track, LFE: constant bit depth of 16 bits.
Video track 1 contains 169422 frames.
eac3to processing took 15 minutes, 26 seconds.
Done.