eac3to - audio conversion tool - Page 379

nautilus7 · 28th December 2008, 17:04

Thanks man. Happy holidays!

Adding support for Arcsoft EAC3 decoder will be great. I will get rid of Nero at last.

AnryV · 28th December 2008, 18:04

There is DTS audio track extracted from BD by using eac3to.

Info from eac3to:
DTS, 5.1 channels, 1:59:41, 24 bits, 768kbps, 48khz

Info from Delaycut:
====== INPUT FILE INFO ========================
File is dts
Bitrate (kbit/s) 768
Act rate (kbit/s) 754.500
File size (bytes) 689363968
Channels mode C+L+R+SL+SR
Sampling Frec 48000
Low Frec Effects LFE: Present
Duration 02:01:49.359
Frame length (ms) 10.857522
Frames/second 92.102051
Num of frames 673207
Bytes per Frame 1024.0000
Size % Framesize 0
CRC present: NO
=============================================

As consequence at attempt to connect this sound as external unsync appears. If to include it in mkv that everything is all right.
What's wrong with this file and how this can be corrected?

Thunderbolt8 · 28th December 2008, 18:30

Quote:

Originally Posted by madshi

eac3to v2.85 released

thanks!

hubblec4 · 28th December 2008, 20:32

Quote:

Originally Posted by madshi

eac3to v2.85 released

On a side note, I looked into making Nero 9 DirectShow decoders work with eac3to, but I gave up on it because of these reasons:

(1) AC3 decoding works, but gives slightly different results compared to Nero 7 and Sonic.
(2) E-AC3 decoding is not supported at all, as far as I can say (which kinda makes sense, since Nero 9 doesn't support HD DVD, anymore).
(3) The decoder didn't accept my TrueHD data. Not sure, maybe they changed something and maybe it would be possible to make it work again with more effort.

All in all I just don't see the value of making Nero 9 work, since E-AC3 support seems to be missing, anyway. Instead I'll try to make the ArcSoft (E-)AC3 decoder work, sooner or later...

big thanks for your good work on it.

please. dont change to nero9 (i dont like it and i wont install it anymore) nero7, the decoder works!!

hubble

Snowknight26 · 28th December 2008, 20:37

madshi, are you going to update libFLAC to 1.2.1?

Thunderbolt8 · 28th December 2008, 20:39

Quote:

Originally Posted by Snowknight26

madshi, are you going to update libFLAC to 1.2.1?

which advantages does it have, better compression?

wolfbane5 · 28th December 2008, 20:44

Quote:

Originally Posted by madshi

v1.0.23 is supposed to work. Try reinstalling with admin rights...

The "-core" switch doesn't need ArcSoft. You only need ArcSoft for best quality decoding...

Okay, I'll reinstall Surcode with admin rights and see what happens. As for DTS-HD decoding, to extract the DTS core, (correct me if I'm wrong) don't you need either Sonic or ArcSoft?

Snowknight26 · 28th December 2008, 20:45

No, eac3to can do that on its own.

n0mag!c · 28th December 2008, 20:54

Quote:

Originally Posted by AnryV

There is DTS audio track extracted from BD by using eac3to.

Info from eac3to:
DTS, 5.1 channels, 1:59:41, 24 bits, 768kbps, 48khz

Info from Delaycut:
====== INPUT FILE INFO ========================
File is dts
Bitrate (kbit/s) 768
Act rate (kbit/s) 754.500
File size (bytes) 689363968
Channels mode C+L+R+SL+SR
Sampling Frec 48000
Low Frec Effects LFE: Present
Duration 02:01:49.359
Frame length (ms) 10.857522
Frames/second 92.102051
Num of frames 673207
Bytes per Frame 1024.0000
Size % Framesize 0
CRC present: NO
=============================================

As consequence at attempt to connect this sound as external unsync appears. If to include it in mkv that everything is all right.
What's wrong with this file and how this can be corrected?

Actually, DTS must be 93.75 frames/second. I guess headers was broken using MKV stretch feature, so maybe you'll try to fix this with the same MKV feature?

AnryV · 28th December 2008, 21:02

Quote:

Originally Posted by n0mag!c

Actually, DTS must be 93.75 frames/second. I guess headers was broken using MKV stretch feature, so maybe you'll try to fix this with the same MKV feature?

DTS track was ONLY demuxed from .m2ts by eac3to. When I merge it into mkv it play correctly.

How to fix header?

madshi · 28th December 2008, 21:05

Quote:

Originally Posted by AnryV

There is DTS audio track extracted from BD by using eac3to.

As consequence at attempt to connect this sound as external unsync appears. If to include it in mkv that everything is all right.
What's wrong with this file and how this can be corrected?

Conventional DTS tracks from HD media (or the core of DTS-HD tracks) are slightly different from normal DTS tracks. The number of bytes per frame varies slightly. This can confuse the DTS source filter. My best guess is that the DTS source filter you're using is at fault.

Quote:

Originally Posted by Snowknight26

are you going to update libFLAC to 1.2.1?

Can't see anything in the changelog that would make upgrading worthwhile to me.

AnryV · 28th December 2008, 21:26

Quote:

Originally Posted by madshi

My best guess is that the DTS source filter you're using is at fault.

What I have to do? I use AC3Filter.

madshi · 28th December 2008, 21:29

Quote:

Originally Posted by AnryV

What I have to do? I use AC3Filter.

Don't know. Probably AC3Filter is doing something wrong. I'm not responsible for every HTPC software out there...

AnryV · 28th December 2008, 22:05

Quote:

Originally Posted by madshi

Conventional DTS tracks from HD media (or the core of DTS-HD tracks) are slightly different from normal DTS tracks. The number of bytes per frame varies slightly.

Number of bytes per frame may varies but Frames per second connected with duration.

n0mag!c · 28th December 2008, 22:08

Quote:

Originally Posted by AnryV

What I have to do? I use AC3Filter.

Try DTSSource.ax filter maybe it helps you:
http://www.doom9.org/Soft21/Filters/test.rar

Atak_Snajpera · 28th December 2008, 22:40

Quote:

All in all I just don't see the value of making Nero 9 work, since E-AC3 support seems to be missing, anyway. Instead I'll try to make the ArcSoft (E-)AC3 decoder work, sooner or later...

Is something wrong with libav that we need support for other decoders?

nautilus7 · 28th December 2008, 23:13

Nero and ArcSoft use Dolby's reference code for their decoders, so they might offer better sound quality, but the difference should be negligible, if any.

magic144 · 28th December 2008, 23:38

hi Madshi,
just wondering if possible in a future update, can the audio edit function be used to insert silence for a +delay, rather than looping the audio at that point - would be superb if that could be done for at least AC3 and DTS

specifically, this fn from 2.84 rel notes...

Quote:

* new option for removing or looping audio data, e.g. "-edit=0:20:47,-100ms"

cheers and keep up the great work,
m

wolfbane5 · 29th December 2008, 02:27

Quote:

Originally Posted by Snowknight26

No, eac3to can do that on its own.

Had no idea eac3to could extract the dts core by itself; well that solves my problem there.

madshi, I was curious as to why there isn't support for .m2ts and .ts outputs? Demuxing video or simply creating an .mkv is great (from a blu-ray disc or whatnot), but sometimes creating a .m2ts or .ts is handy. Just a suggestion. Thanks for the great work thus far

yesgrey · 29th December 2008, 02:47

madshi,
You are still including eac3to 2.80 in the pack. Is 2.85 not yet stable enough?

28th December 2008, 17:04	#7561 \| Link
nautilus7 Registered User Join Date: Jan 2006 Location: Athens, Greece Posts: 1,518	Thanks man. Happy holidays! Adding support for Arcsoft EAC3 decoder will be great. I will get rid of Nero at last.

28th December 2008, 18:04	#7562 \| Link
AnryV Registered User Join Date: Jun 2007 Posts: 42	There is DTS audio track extracted from BD by using eac3to. Info from eac3to: DTS, 5.1 channels, 1:59:41, 24 bits, 768kbps, 48khz Info from Delaycut: ====== INPUT FILE INFO ======================== File is dts Bitrate (kbit/s) 768 Act rate (kbit/s) 754.500 File size (bytes) 689363968 Channels mode C+L+R+SL+SR Sampling Frec 48000 Low Frec Effects LFE: Present Duration 02:01:49.359 Frame length (ms) 10.857522 Frames/second 92.102051 Num of frames 673207 Bytes per Frame 1024.0000 Size % Framesize 0 CRC present: NO ============================================= As consequence at attempt to connect this sound as external unsync appears. If to include it in mkv that everything is all right. What's wrong with this file and how this can be corrected?

28th December 2008, 20:37	#7565 \| Link
Snowknight26 Registered User Join Date: Aug 2007 Posts: 1,430	madshi, are you going to update libFLAC to 1.2.1?

28th December 2008, 20:45	#7568 \| Link
Snowknight26 Registered User Join Date: Aug 2007 Posts: 1,430	No, eac3to can do that on its own.

28th December 2008, 23:13	#7577 \| Link
nautilus7 Registered User Join Date: Jan 2006 Location: Athens, Greece Posts: 1,518	Nero and ArcSoft use Dolby's reference code for their decoders, so they might offer better sound quality, but the difference should be negligible, if any.

29th December 2008, 02:47	#7580 \| Link
yesgrey Registered User Join Date: Sep 2004 Posts: 1,295	madshi, You are still including eac3to 2.80 in the pack. Is 2.85 not yet stable enough?