eac3to - audio conversion tool - Page 583

ramicio · 4th June 2012, 16:03

Quote:

Originally Posted by Midzuki

Another possible approach: drop FLAC

and "move house" to WavPack

Except problems arise when you have files bigger than 4 GiB. Some filters handle it, some don't. For Windows you can use madFLAC for correct channel assignments, or WavPack's splitter filter and decoder handles files > 4 GiB. Outside of Windows, you're screwed on both fronts. Both codecs still need work, and it's pathetic that they've been basically "completed" years ago despite some problems. All FLAC would have to do is switch to using WAVEFORMATEXTENSIBLE channel masks.

Joniii · 5th June 2012, 20:21

Stupid question, I have a m2ts file with DTS (delay -9ms). eac3to applied dts delay when demuxing but said a remaining delay of +1ms could not be fixed. I know 1ms is nothing but being a perfectionist, do I have to add -1ms or +1ms with mkvtoolnix when remuxing?

Little confused because the file has -9ms delay but after fixing it, it ends up having +1ms delay.

hello_hello · 6th June 2012, 02:45

Maybe the extra 1ms delay is caused by some sort of padding used at the beginning of the audio file and that's as close as eac3to could get it? Just a guess....
To answer you question though I'd assume it's a positive delay of 1ms which needs to be added manually.

tebasuna51 · 6th June 2012, 08:25

Correct the delay without recode is only possible adding/cutting complete DTS frames (512 samples at 48KHz = 10.667 ms each frame).
Here 1 frame is cutted then 10.67ms - 9ms = 1.667ms.
Like audio have 1.667 ms less duration the delay in container must be +1, or +2 if you want, but is unnecesary.

Video frames have a duration of 40 ms (25 fps) then delays of +/- 20 ms are absolutely undetectable.

Joniii · 6th June 2012, 20:58

Thx for the explanation, I have always wondered why it always leaves +1ms.

ramicio · 8th June 2012, 17:06

I really wish logging could be disabled. There should be support for some sort of .ini file in the eac3to directory for a few settings, like which method for progress display, and if it's just the hyphen bar, then you should be able to specify how many characters wide your terminal is. Who uses the default width of 80? I don't get why progress numbers need to start a new line. It's difficult for me to judge progress because my terminals are 170 wide, and will likely grow as resolutions keep going up.

sl1pkn07 · 10th June 2012, 16:16

little question. why not use libmatroska/libebml instead haalisplitter/mkvtoolnix?

mastrandrea · 11th June 2012, 02:23

Is this the right tool to convert a 3.0 AC3 track (Front: L R, Side: C) to a 2.0 AC3 track? If not, which software do you suggest me to use?

tebasuna51 · 11th June 2012, 09:18

eac3to only accept 5.1 to convert to 2.0.

You can try:
- BeHappy, with NicAc3Source(Down2) like Source and a DSP Normalize.
- BeLight, adjusting azid output like Stereo and Normalize.

ramicio · 11th June 2012, 14:04

FFDShow, GraphEdit, and the WavDest filter. Set FFDShow to mix to 2.0 and normalize the levels.

mastrandrea · 11th June 2012, 19:04

Thank you both!

mp3dom · 15th June 2012, 13:13

I have a question that probably was already answered but I can't find a clear post (most of them refers to dts-hd 6.1 to 5.1 remapping channels). I have a 6.1 interleaved wave with the following mappings:

Left
Right
Center
LFE
Left Surround
Right Surround
Back-Center Surround

I want to downmix to 5.1 with eac3to. Is this channelmap already ok for what eac3to expect, or do I need to switch some channel (like put Back Center Surround between LFE and Left Surround?).
Thanks!

ramicio · 15th June 2012, 13:47

If they are already in a WAV then they are likely in the correct order. WAV has a standardized channel order. Are the surrounds "back" or "side?"

mp3dom · 15th June 2012, 14:07

The surrounds are all back channels. The interleaved wave was made from 7 mono files (I think using SoundForge or Nuendo)

ramicio · 15th June 2012, 14:08

Well, if you put the files in the correct order to interleave the file, and it has the correct channel mask, then there will be zero problems.

Carpo · 15th June 2012, 15:32

instead of reading 583 pages and trying to use the search here that never finds what i'm after, I will ask a question that has already been asked, but is there any chance of eac3to being updated to use LAV filters instead of/ as well as haali?

ramicio · 15th June 2012, 15:36

Isn't Haali just a splitter? I see a file in the eac3to directory called avcodec.dll. Is this not libavcodec, which that LAV Filters thing is based off of?

Carpo · 15th June 2012, 16:22

it would still need to be made aware of lav and what it can do

ramicio · 15th June 2012, 16:23

What?

Carpo · 15th June 2012, 16:26

you cant just drop a dll in the folder and expect it to know what LAV is and what lav can do, avcodec-lav-54.dll which is the lastest version that comes with LAV filters may have changed from the version that comes with eac3to and cause errors

5th June 2012, 20:21	#11642 \| Link
Joniii Registered User Join Date: Aug 2007 Posts: 301	Stupid question, I have a m2ts file with DTS (delay -9ms). eac3to applied dts delay when demuxing but said a remaining delay of +1ms could not be fixed. I know 1ms is nothing but being a perfectionist, do I have to add -1ms or +1ms with mkvtoolnix when remuxing? Little confused because the file has -9ms delay but after fixing it, it ends up having +1ms delay. __________________ Windows 10 Pro 2004 with Media Center, 2 x DVB-C with cable cards MPC-HC (madVR, LAV Filters, XySubFilter) Sony Bravia 85X950H/85XH95 Yamaha RX-V685 Yamaha Piano Black NS-777/555/C444/YST-SW315 Last edited by Joniii; 6th June 2012 at 05:31.

6th June 2012, 08:25	#11644 \| Link
tebasuna51 Moderator Join Date: Feb 2005 Location: Spain Posts: 6,915	Correct the delay without recode is only possible adding/cutting complete DTS frames (512 samples at 48KHz = 10.667 ms each frame). Here 1 frame is cutted then 10.67ms - 9ms = 1.667ms. Like audio have 1.667 ms less duration the delay in container must be +1, or +2 if you want, but is unnecesary. Video frames have a duration of 40 ms (25 fps) then delays of +/- 20 ms are absolutely undetectable. __________________ BeHappy, AviSynth audio transcoder. Last edited by tebasuna51; 6th June 2012 at 08:47.

6th June 2012, 20:58	#11645 \| Link
Joniii Registered User Join Date: Aug 2007 Posts: 301	Thx for the explanation, I have always wondered why it always leaves +1ms. __________________ Windows 10 Pro 2004 with Media Center, 2 x DVB-C with cable cards MPC-HC (madVR, LAV Filters, XySubFilter) Sony Bravia 85X950H/85XH95 Yamaha RX-V685 Yamaha Piano Black NS-777/555/C444/YST-SW315

10th June 2012, 16:16	#11647 \| Link
sl1pkn07 Pajas Mentales... Join Date: Dec 2004 Location: Spanishtán Posts: 496	little question. why not use libmatroska/libebml instead haalisplitter/mkvtoolnix? __________________ [AUR] Vapoursynth Stuff [AUR] Avisynth Stuff

11th June 2012, 09:18	#11649 \| Link
tebasuna51 Moderator Join Date: Feb 2005 Location: Spain Posts: 6,915	eac3to only accept 5.1 to convert to 2.0. You can try: - BeHappy, with NicAc3Source(Down2) like Source and a DSP Normalize. - BeLight, adjusting azid output like Stereo and Normalize. __________________ BeHappy, AviSynth audio transcoder.

6th June 2012, 02:45	#11643 \| Link
hello_hello Registered User Join Date: Mar 2011 Posts: 4,829	Maybe the extra 1ms delay is caused by some sort of padding used at the beginning of the audio file and that's as close as eac3to could get it? Just a guess.... To answer you question though I'd assume it's a positive delay of 1ms which needs to be added manually.

8th June 2012, 17:06	#11646 \| Link
ramicio Banned Join Date: Mar 2004 Location: PA, US Posts: 683	I really wish logging could be disabled. There should be support for some sort of .ini file in the eac3to directory for a few settings, like which method for progress display, and if it's just the hyphen bar, then you should be able to specify how many characters wide your terminal is. Who uses the default width of 80? I don't get why progress numbers need to start a new line. It's difficult for me to judge progress because my terminals are 170 wide, and will likely grow as resolutions keep going up.

11th June 2012, 02:23	#11648 \| Link
mastrandrea Registered User Join Date: Mar 2010 Posts: 15	Is this the right tool to convert a 3.0 AC3 track (Front: L R, Side: C) to a 2.0 AC3 track? If not, which software do you suggest me to use?

11th June 2012, 14:04	#11650 \| Link
ramicio Banned Join Date: Mar 2004 Location: PA, US Posts: 683	FFDShow, GraphEdit, and the WavDest filter. Set FFDShow to mix to 2.0 and normalize the levels.

11th June 2012, 19:04	#11651 \| Link
mastrandrea Registered User Join Date: Mar 2010 Posts: 15	Thank you both!

15th June 2012, 13:13	#11652 \| Link
mp3dom Registered User Join Date: Jul 2003 Location: Italy Posts: 1,135	I have a question that probably was already answered but I can't find a clear post (most of them refers to dts-hd 6.1 to 5.1 remapping channels). I have a 6.1 interleaved wave with the following mappings: Left Right Center LFE Left Surround Right Surround Back-Center Surround I want to downmix to 5.1 with eac3to. Is this channelmap already ok for what eac3to expect, or do I need to switch some channel (like put Back Center Surround between LFE and Left Surround?). Thanks!

15th June 2012, 13:47	#11653 \| Link
ramicio Banned Join Date: Mar 2004 Location: PA, US Posts: 683	If they are already in a WAV then they are likely in the correct order. WAV has a standardized channel order. Are the surrounds "back" or "side?"

15th June 2012, 14:07	#11654 \| Link
mp3dom Registered User Join Date: Jul 2003 Location: Italy Posts: 1,135	The surrounds are all back channels. The interleaved wave was made from 7 mono files (I think using SoundForge or Nuendo)

15th June 2012, 14:08	#11655 \| Link
ramicio Banned Join Date: Mar 2004 Location: PA, US Posts: 683	Well, if you put the files in the correct order to interleave the file, and it has the correct channel mask, then there will be zero problems. Last edited by ramicio; 15th June 2012 at 14:11.

15th June 2012, 15:32	#11656 \| Link
Carpo Registered User Join Date: Dec 2002 Location: /dev/null Posts: 1,368	instead of reading 583 pages and trying to use the search here that never finds what i'm after, I will ask a question that has already been asked, but is there any chance of eac3to being updated to use LAV filters instead of/ as well as haali? __________________ The Internet: where men are men, women are men, and children are FBI Agents

15th June 2012, 15:36	#11657 \| Link
ramicio Banned Join Date: Mar 2004 Location: PA, US Posts: 683	Isn't Haali just a splitter? I see a file in the eac3to directory called avcodec.dll. Is this not libavcodec, which that LAV Filters thing is based off of?

15th June 2012, 16:22	#11658 \| Link
Carpo Registered User Join Date: Dec 2002 Location: /dev/null Posts: 1,368	it would still need to be made aware of lav and what it can do __________________ The Internet: where men are men, women are men, and children are FBI Agents

15th June 2012, 16:23	#11659 \| Link
ramicio Banned Join Date: Mar 2004 Location: PA, US Posts: 683	What?

15th June 2012, 16:26	#11660 \| Link
Carpo Registered User Join Date: Dec 2002 Location: /dev/null Posts: 1,368	you cant just drop a dll in the folder and expect it to know what LAV is and what lav can do, avcodec-lav-54.dll which is the lastest version that comes with LAV filters may have changed from the version that comes with eac3to and cause errors __________________ The Internet: where men are men, women are men, and children are FBI Agents