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tormento
23rd March 2026, 11:49
Yes if INPUT_61 is lossless, if is a lossy encode the decoders output always 32 float.
I mistyped 61 bits instead of 16 bits ;)

[QUOTE=tebasuna51;2029489]For a 6.1 matrix you don't need downmix, the output is already standard 5.1 (like I say before).

So, if I launch a simply eac3to on the 6.1 input, the output will be 5.1?

tebasuna51
24th March 2026, 08:51
For lossless the decoders must preserve the input bits, for lossy the output is 32 float by default.
If you want encode to flac you can specify 16 or 24 bits int better than 32 float.

Yes, the phantom BC channel is still matrixed in the decoded SL-SR channels.

tormento
24th March 2026, 09:53
Yes, the phantom BC channel is still matrixed in the decoded SL-SR channels.
So it will be 5.1 or 6.1? In the latter case, what is the best way to decode to 5.1 wav?

SeeMoreDigital
24th March 2026, 14:49
Out of interest...

If you input a 6.1 DTS-ES discrete source into UsEac3To can it be configured to create 7no pcm.wav files?

tebasuna51
25th March 2026, 09:04
For a 6.1 Discrete (if you want 7 pcm.wav change wav to wavs)
(DTS-ES Discrete, Channel layout: C L R Ls Rs Cb LFE)
eac3to v3.60
command line: eac3to.exe DTS-ES_61_dis.dts DTS-ES_61_dis.dts_-.wav
------------------------------------------------------------------------------
DTS-ES, 6.1 channels, 0:00:14, 1510kbps, 48kHz, dialnorm: 0dB
Decoding with libDcaDec DTS Decoder...
Writing WAV...

MaskChannels : 1807 (FL FR FC LF BC SL SR)

For a DTS-ES matrixed:
(DTS-ES Channel layout: C L R Ls Rs Cb LFE)
eac3to v3.60
command line: eac3to.exe DTS-ES_61_mat.dts DTS-ES_61_mat.dts_-.wav
------------------------------------------------------------------------------
DTS-ES, 5.1 channels, 0:00:14, 1510kbps, 48kHz, dialnorm: 0dB
Decoding with libDcaDec DTS Decoder...
Writing WAV...

MaskChannels : 1551 (FL FR FC LF SL SR)

You can use eac3to or ffmpeg, the output is always 5.1 (the BC still matrixed in SL-SR channels)

SeeMoreDigital
25th March 2026, 10:24
Nice one... Thanks ;)