eac3to - audio conversion tool

[shh]

Where's madshi? Is eac3to dead?

[tebasuna51]

madshi is still active here http://forum.doom9.org/showthread.php?t=146228

I can't answer to second question.

[szabi]

Hi

I tried this:
Extract the DTS core of a DTS-HD track:
eac3to input.dtshd output.dts -core

Why is it not working?
IAW wikibooks it should: click

bye
szabi

[madshi]

eac3to is not dead, it's just kinda "on hold" for the moment, because I'm busy working on madVR. Once madVR has reached v1.0, I'll get back to eac3to development.

[szabi]

I tried using gui's, but no luck as well.
Eac3to and More GUI
This one got crash all the time.
Another mod of this is Eac3to and More GUI v.1.10.01.
Even the input file is given, it is asking to give again and again, it can not be started.

eac3to µGUI
Third one i tried is this.
But the needed button is inactive in the gui.

Is that possible it is just a planned feature which does not work momentarily?

bye
szabi

[the_weirdo]

@szabi: You may try this GUI: UsEac3to.

[szabi]

It worked, many thanks.
I would reccommend to take this tool to initial post.
Out of 4 gui this was the only one which could work.

bye
szabi

[jpsdr]

Originally Posted by madshi

eac3to is not dead, it's just kinda "on hold" for the moment, because I'm busy working on madVR. Once madVR has reached v1.0, I'll get back to eac3to development.

Thanks for the information !

[setarip_old]

@szabi

If you can find it, you might also try the MUCH older "EAC3toGUI.exe"...

Originally Posted by Jeff B

If I run a wav or PCM file through eac3to and output as .lpcm, will the result be both Blu-ray and DVD compliant?

Any ideas about this?

[nevcairiel]

Originally Posted by Jeff B

Any ideas about this?

Blu-ray and DVD use different types of LPCM encoding, so with some confidence i can say that it won't be compatible with both at the same time.

Originally Posted by nevcairiel

Blu-ray and DVD use different types of LPCM encoding, so with some confidence i can say that it won't be compatible with both at the same time.

Thanks for the info. In that case, I need to know what commands to input for Blu-ray and for DVD.

[tebasuna51]

Originally Posted by Jeff B

Thanks for the info. In that case, I need to know what commands to input for Blu-ray and for DVD.

That depend of the soft you want use to mux video and audio.
For instance tsMuxeR accept .wav (<4GB) and .w64 (>4GB) to obtain .m2ts files for BD

Originally Posted by tebasuna51

That depend of the soft you want use to mux video and audio.

Really? I understood that muxers don't actually change files: they just, well, mux them. I don't see how muxing .w64 can be BD compliant, unless tsmuxer changes the file in some way.

[mindbomb]

so, im not completely clear on the use of flac for things above 6 channels.
WAVEFORMATEXTENSIBLE_CHANNEL_MASK is supposed to be used? and eac3to does this by default?
And decoders should be able to use that for to figure out the channels?

If my ultimate goal is to use this in a matroska file, does the channel mask remain through the muxing process?

[tebasuna51]

Originally Posted by Jeff B

Really? I understood that muxers don't actually change files: they just, well, mux them. I don't see how muxing .w64 can be BD compliant, unless tsmuxer changes the file in some way.

Of course, a muxer can modify the data order (unique diference between lpcm and wav/w64 files)

Originally Posted by mindbomb

so, im not completely clear on the use of flac for things above 6 channels.
WAVEFORMATEXTENSIBLE_CHANNEL_MASK is supposed to be used? and eac3to does this by default?
And decoders should be able to use that for to figure out the channels?

If my ultimate goal is to use this in a matroska file, does the channel mask remain through the muxing process?

AFAIK, flac can't store channel mask.
There are a unique channel mask supported for each num_channels type, and undefined for 7 and 8 channels.

[me7]

eac3to doesn't seem to like 5.0 content. I have a 5.0 DTS Master Audio tracks that I want to encode to 5.0 AC3, but eac3to crashes with an error:

DTS Master Audio, 5.0 channels, 24 bits, 48kHz
(core: DTS, 5.0 channels, 24 bits, 1509kbps, 48kHz)
Decoding with ArcSoft DTS Decoder...
The AC3 encoder received a non-supported data format (pcm, 5, 24, -).

Apparently the included AC3 encoder doesn't like 5 channel content.
If I use eac3to to create a 5.0 wav file and encode it with a standalone AC3 encoder, do I need to worry about channel order?

[rapscallion]

Audio question about my logic :

If I extract a 385 Mb AC-3, 5.1, 640 Kbps track to 6 wavs, the results are 975 Mb wavs @1152 Kbps each.

Enter the wavs into DTS-MA suite, encode them into DTS-High Res audio track format with a bitrate @ 3840 Kbps.
The result is still lossy ( I know they can't be converted to DTS-HD) but much higher bitrate and, I would think, higher quality than DTS @ 1509 Kbps and the original AC-3 track.

Is my reasoning correct or am I out in left field somewhere ?

[Asmodian]

Originally Posted by rapscallion

... higher quality than DTS @ 1509 Kbps and the original AC-3 track.

You can never get higher quality than the original, a lossy reencode will always be lower quality than the source.

How much lower is dependent on the settings and in your case I would assume not much. Still it is better to just leave it as the AC3 if you can.

Originally Posted by tebasuna51

Of course, a muxer can modify the data order (unique diference between lpcm and wav/w64 files)

Ah, so the only difference between those types of files is data order, and as long as the muxer accepts the input the result should be compliant. Thanks. That helps.