eac3to - audio conversion tool

[stax76]

Originally Posted by tebasuna51

Yes, I see.

BTW execute cmd is the same than create a cmd file and launch it.

Not exactly, cmd and bat by default use a legacy dos code page:

https://de.wikipedia.org/wiki/Codepage_850

On Win 10 it can be changed to UTF-8

Calling cmd with arguments gives full Unicode support.

[Bgalakazam]

Is there still no way to combine a TrueHD track with a core track? Instead a thd+core needs to be encoded with libAften every time? Some tracks fail that way.

Certain devices can't play the TrueHD track alone and need the core embedded. Either use a full BluRay rip structure or a MKV rip THD track and have to encode with libAften and then merge into a .TS/.M2TS which preserves the thd+core.

[tebasuna51]

Originally Posted by Bgalakazam

Is there still no way to combine a TrueHD track with a core track? Instead a thd+core needs to be encoded with libAften every time?

I don't know other way.

Some tracks fail that way.

I don't know tracks than fail.
If is 7.1 add -down6
If is 96 KHz add -resampleTo48000
If there are a clip add -no2ndpass

[dm9656]

Hi,

I recently used eac3to for reencoding a 24bit DTS-HD MA stream to 16bit (DTS-HA MA 24bit => eac3to => WAV 16bit => DTS MAS => DTS-HD MA 16bit); however, I noticed this 2017 discussion in a forum about the "eac3to does not manage the DTS-HD codec delay of 1024 samples" : https://forum.fanres.com/thread-1531.html

The solution at the times seemed to be something along the lines of "eac3to input output -21ms"... (to be precise it should be measured in number of samples, not in ms, as the delay is 2 frames = 1024 samples)

So, my question is: the "delay problem" being known for a few years now, is the current release of eac3to able to handle this "codec delay" by itself now ? Or is it still needed to care about managing that delay "by hand" when converting from DTS-HD audio ?

Thanks !

[tebasuna51]

A standard dts stream doesn't have a global header with the "Codec delay" tag, only the dts's created by the encoder Master Audio Suite have these headers.

Inside a container doesn't exist that header and the authoring soft must cut these frames (at least MkvMerge do so).

Is a encoder (all encoders insert some delay) problem but streams extracted from containers by eac3to doesn't have that delay.

AC3's encoders add 5ms of delay, ffdcaenc add 11ms to dts's, some AAC encoders 26ms ...

[Kokka]

Hello,

i am getting the error message from eac3to "Unable to convert DTS track to wav"

The two audio files are "DTS XBR" and "DTS XLL X"

Do you have any ideas?

Here is the MediaInfo of the file:

Format : Matroska
Format version : Version 4
File size : 80,0 GiB
Duration : 3 h 20 min
Overall bit rate mode : variabel
Overall bit rate : 57,2 Mb/s
Movie name : King.Kong.2005.EXTENDED.GERMAN.DL.2160p.UHD.BluRay.HEVC-4K
Encoded date : UTC 2018-04-21 11:06:32
Writing application : mkvmerge v22.0.0 ('At The End Of The World') 64-bit
Writing library : libebml v1.3.5 + libmatroska v1.4.8

Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5.1@High
HDR format : SMPTE ST 2086, HDR10 compatible
Codec ID : V_MPEGH/ISO/HEVC
Duration : 3 h 20 min
Bit rate : 46,2 Mb/s
Width : 3 840 Pixel
Height : 2 160 Pixel
Display aspect ratio : 16:9
Frame rate mode : konstant
Frame rate : 23,976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0 (Type 2)
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.232
Stream size : 64,5 GiB (81%)
Writing library : ATEME Titan File 3.7.9 (4.7.9.0)
Default : Ja
Forced : Nein
Color range : Limited
Color primaries : BT.2020
Transfer characteristics : PQ
Matrix coefficients : BT.2020 non-constant
Mastering display color primaries : Display P3
Mastering display luminance : min: 0.0050 cd/m2, max: 1000 cd/m2
Maximum Content Light Level : 1000 cd/m2
Maximum Frame-Average Light Level : 96 cd/m2

Audio #1
ID : 2
Format : DTS XBR
Format/Info : Digital Theater Systems
Commercial name : DTS-HD High Resolution Audio
Codec ID : A_DTS
Duration : 3 h 20 min
Bit rate mode : konstant
Bit rate : 3 456 kb/s
Channel(s) : 8 Kanäle
Channel layout : C L R LFE Lb Rb Lss Rss
Sampling rate : 48,0 kHz
Frame rate : 93,750 FPS (512 SPF)
Bit depth : 24 bits
Compression mode : Lossy
Stream size : 4,83 GiB (6%)
Language : Deutsch
Default : Nein
Forced : Nein

Audio #2
ID : 3
Format : DTS XLL X
Format/Info : Digital Theater Systems
Commercial name : DTS-HD Master Audio
Codec ID : A_DTS
Duration : 3 h 20 min
Bit rate mode : variabel
Bit rate : 7 413 kb/s
Channel(s) : 8 Kanäle
Channel(s)_Original : Object Based
ChannelLayout_Original : Object Based
Sampling rate : 48,0 kHz
Frame rate : 93,750 FPS (512 SPF)
Bit depth : 24 bits
Stream size : 10,4 GiB (13%)
Language : Englisch
Default : Ja
Forced : Nein

Text #1
ID : 4
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 3 h 16 min
Bit rate : 0 b/s
Count of elements : 39
Stream size : 867 Bytes (0%)
Title : Forced SRT
Language : Deutsch
Default : Ja
Forced : Ja

Text #2
ID : 5
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 3 h 16 min
Bit rate : 443 b/s
Count of elements : 78
Stream size : 639 KiB (0%)
Title : Forced PGS
Language : Deutsch
Default : Nein
Forced : Nein

Text #3
ID : 6
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 3 h 18 min
Bit rate : 19,0 kb/s
Count of elements : 2594
Stream size : 27,0 MiB (0%)
Language : Deutsch
Default : Nein
Forced : Nein

Text #4
ID : 7
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 3 h 20 min
Bit rate : 78,4 kb/s
Count of elements : 7166
Stream size : 112 MiB (0%)
Language : Deutsch
Default : Nein
Forced : Nein

Text #5
ID : 8
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 3 h 9 min
Bit rate : 21,8 kb/s
Count of elements : 3438
Stream size : 29,5 MiB (0%)
Language : Englisch
Default : Nein
Forced : Nein

Text #6
ID : 9
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 3 h 19 min
Bit rate : 80,1 kb/s
Count of elements : 7162
Stream size : 114 MiB (0%)
Language : Englisch
Default : Nein
Forced : Nein

Thank you for any help!

Kokka

[Richard1485]

Use ffmpeg instead.