How to insert AC3 into AVS and encode to Nero Digital AVC?

[AlexeyS]

What is correct way? I've tried AC3Filter + DirectShowSource, but target AVC video has strange AAC sound. The channels has different order.

How to fix problem?

[AlexeyS]

What is correct way? I've tried AC3Filter + DirectShowSource, but target AVC video has strange AAC sound. The channels has different order.

How to fix problem?
Any thoughts about why I'm having this problem? :confused:

[Sirber]

If no reply maybe no one knows...

[AlexeyS]

If no reply maybe no one knows...
But a lot of people encoding movies with Nero Recode. And no one uses 5.1 AC3 tracks? :confused:

[Sirber]

maybe from DVD directly, but not the way you do it.

[AlexeyS]

maybe from DVD directly, but not the way you do it.
What if I need to use some avisynth filters? ;)

[Sirber]

You can always use your favorite VDub with x264, then feed the AC3 to belight, then merge all in MP4 :D

[Wishbringer]

Nic wrote a nice plugin for AC3 support in AVS.
Usage is descriped in thread or zip.
NicAudio (http://forum.doom9.org/showthread.php?p=632274#post632274)

[AlexeyS]

Nic wrote a nice plugin for AC3 support in AVS.
Usage is descriped in thread or zip.
NicAudio (http://forum.doom9.org/showthread.php?p=632274#post632274)
Hmmm. Same problem here.
The sound in encoded MP4 is with wrong channel order. For example, the speech is in Right Front speaker and not in Center speaker... :confused:

[movax]

Maybe the AC3/AAC playback on your system in borked...did you check a "Reverse Stereo" or "Swap Channels" box somewhere?

[celtic_druid]

As I understand it aac and AC3 use different channel orders, so I guess maybe Nero expects aac channel orders as input where as you are feeding it AC3.

You could swap the channel order around in AVISynth and see if it helps.

[AlexeyS]

Maybe the AC3/AAC playback on your system in borked...did you check a "Reverse Stereo" or "Swap Channels" box somewhere?
No.

As I understand it aac and AC3 use different channel orders, so I guess maybe Nero expects aac channel orders as input where as you are feeding it AC3.
But the input is AC3. If I put MPEG2 with AC3, Nero Recode will make MP4 file with normal channel order.

[Koti]

Didn't we solve this here (http://forum.doom9.org/showthread.php?p=644401#post644401) ?

ps : there's no way that I know of to directly feed ac3 into the avs properly to nero , you have to split to 6 wave files to map order.

[AlexeyS]

Didn't we solve this here (http://forum.doom9.org/showthread.php?p=644401#post644401) ?

ps : there's no way that I know of to directly feed ac3 into the avs properly to nero , you have to split to 6 wave files to map order.
Yes, Koti. This works. But six waves is uncomfortable a bit.
But I think there must be some way to use AC3+Avisynth+Nero Recode. :)

[movax]

What's wrong with using BeSweet to encode the audio independently of the video, and mux it with the video later?

[AlexeyS]

What's wrong with using BeSweet to encode the audio independently of the video, and mux it with the video later?
I have always AV desync problem with HD video and sometimes with DV video (using YAMB, MP4Box).

[Drachir]

I have always AV desync problem with HD video and sometimes with DV video (using YAMB, MP4Box).

What Player do you use? Try VLC instead.

[AlexeyS]

What Player do you use? Try VLC instead.
Tried few players:
Nero ShowTime 2, WMP, MPC, VLC.

[movax]

AV desync can be prevented...like when you rip a DVD, the delay of the audio tracks are provided in ms for you to use in BeSweet or similar program. AV can also desync if your computer isn't up to snuff in decoding power.

[AlexeyS]

AV desync can be prevented...like when you rip a DVD, the delay of the audio tracks are provided in ms for you to use in BeSweet or similar program. AV can also desync if your computer isn't up to snuff in decoding power.
I mean there is no any sync. For example, You play movie and after 30-40 minutes of video you have no audio (audio goes much faster). When I encode the same video to SD, I have no any audio sync problems.

[Koti]

are you specifying fps in yamb if video isn't 25fps ?

" -fps 23.976 " ?

maybe post your cli from file creation and muxing ? There's gotta be a reason here

[AlexeyS]

are you specifying fps in yamb if video isn't 25fps ?

" -fps 23.976 " ?
I've tried the -fps with MP4Box. Does not work with HDTV video.

[Koti]

I've tried the -fps with MP4Box. Does not work with HDTV video.
ack - havnt played much with hdtv content yet :(