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Old 18th January 2009, 17:40   #7913  |  Link
shambles
Registered User
 
Join Date: Nov 2007
Posts: 132
i have quite an interesting lossless track where the bitdepth analyser doesn't tell the whole truth unless i convert it to separate waves and process those one by one.. i'm not sure though if anyone except me actually cares about that sort of thing :P

Code:
C:\Program Files\eac3to>eac3to E:\aviator.flac f:\aviator.wavs
FLAC, 5.1 channels, 2:50:07, 24 bits, 1691kbps, 48khz
Decoding FLAC...
Writing WAVs...
Creating file "f:\aviator.L.wav"...
Creating file "f:\aviator.LFE.wav"...
Creating file "f:\aviator.SR.wav"...
Creating file "f:\aviator.R.wav"...
Creating file "f:\aviator.C.wav"...
Creating file "f:\aviator.SL.wav"...
Original audio track: max 24 bits, average 18 bits, most common 16 bits.
eac3to processing took 4 minutes, 28 seconds.
Done.

C:\Program Files\eac3to>eac3to f:\aviator.L.wav aviator.L.wav
WAV, 1.0 channels, 2:50:07, 24 bits, 1152kbps, 48khz
Reading WAV...
Writing WAV...
Creating file "aviator.L.wav"...
Original audio track: max 24 bits, average 17 bits, most common 16 bits.
eac3to processing took 43 seconds.
Done.

C:\Program Files\eac3to>eac3to f:\aviator.LFE.wav aviator.LFE.wav
Original audio track: max 24 bits, average 16 bits, most common 16 bits.

C:\Program Files\eac3to>eac3to f:\aviator.SR.wav aviator.SR.wav
Original audio track: max 24 bits, average 18 bits, most common 16 bits.

C:\Program Files\eac3to>eac3to f:\aviator.R.wav aviator.R.wav
Original audio track: max 24 bits, average 17 bits, most common 16 bits.

C:\Program Files\eac3to>eac3to f:\aviator.C.wav aviator.C.wav
The original audio track has a constant bit depth of 24 bits.

C:\Program Files\eac3to>eac3to f:\aviator.SL.wav aviator.SL.wav
Original audio track: max 24 bits, average 18 bits, most common 16 bits.
it's from the french aviator bluray. what makes it even more interesting is how much bitrate it takes on the disc.

DTS-HD Master Audio English 5.1 / 48 kHz / 3545 kbps / 24-bit (DTS Core: 5.1 / 48 kHz / 1509 kbps / 24-bit)

i was really surprised how much lower the bitrate was when re-encoded to flac.. unless this is some sort of freak unique case, it would seem that dts-hd ma is really bad at compressing variable-bitdepth material.
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