Encode .mkv to Nero AAC 6ch Audio with MeGUI?

[.vaLk.]

I was wondering how this is done/ if it is possible. I want to encode an HD rip and I'd like it's audio to still be Nero AAC 6ch Audio, and I'm using MeGUI.

thanks!

[Kurtnoise]

Just load your mkv in the fist Audio tab and choose the ND AAC LC 6ch profile...Should be fine if your audio stream is multichannel.

[.vaLk.]

Ok thanks, but the Processing rate says ".04x realtime"...is that right? It's moving ridiculously slow :confused:

[twolfe18]

also, if it is not too far off subject, about how much bitrate is necessary to achieve the quality of, say, 160kb/s 2 channel audio, but for 6 channels. i assume it will be higher, but not necessarily 5 to 6 times higher. is 480 to 640 (or 3x to 4x more than 160) about right? or is that just overkill/underkill?

[DAKnn]

Just load your mkv in the fist Audio tab and choose the ND AAC LC 6ch profile...Should be fine if your audio stream is multichannel.

hmm..
In settings neroAacEnc - set neroaacenc.exe, but Nero Digital Audio Reference MPEG-4 & 3GPP Audio Encoder does NOT support save multichannel AAC

[.vaLk.]

Well, here's the settings I'm using right now:

http://i2.tinypic.com/6pgooef.png
http://i3.tinypic.com/86s508m.png

Will that give me 6ch audio?

[tebasuna51]

Of course NeroAacEnc can output multichannel audio but for AAC-LC profile use at least 256 Kb/s, with 192 Kb/s maybe is better AAC-HE.

[.vaLk.]

I'm mainly worried about how slow it's going, this is what I'm getting:

http://i1.tinypic.com/71mmz3p.png

Is this normal? I know I've converted to 6ch audio faster than this before.

[twolfe18]

its probably the upconverting to 5.1 that is slowing you down. try encoding a 5.1 source in 5.1 (so that you don't have to split the channels) with the same bitrate settings and see if it goes much faster. i think it will.

[tebasuna51]

Two days to encode?
Of course is not normal.

[.vaLk.]

its probably the upconverting to 5.1 that is slowing you down. try encoding a 5.1 source in 5.1 (so that you don't have to split the channels) with the same bitrate settings and see if it goes much faster. i think it will.
Thanks, but can you give me the settings for MeGUI? It would be greatly appreciated :)

[twolfe18]

yeah, in the audio configuration dialog window just uncheck the force decoding via directshow box and in the output channels pulldown menu select keep original channels. this all assumes that you have a 5.1 source, so just extract a 5.1 ac3 from a dvd. just leave the profile on aac-lc and it should work, see how fast that goes.

[.vaLk.]

Well, here's the settings that I'm at now-

http://i13.tinypic.com/6toiut3.png

but it still outputs in only 2ch, you know whats wrong?

[tebasuna51]

but it still outputs in only 2ch, you know whats wrong?

But, what is your audio source?

If outputs 2ch, or the input is also 2ch or you have the decoder configured to downmix to 2ch.

[.vaLk.]

My audio source is 6ch, here's the Media Info:

Audio #0
Codec : DTS
Channel(s) : 6 channels
Sampling rate : 48 KHz
Title : DTS@768kbs
Language : English

Does that help?

[tebasuna51]

Then is a MeGui problem or a DirectShow decoder bad configured.

Is not a NeroAacEnc problem. You can try to extract the DTS from the container and reencode to aac with NeroAacEnc using BeHappy or Foobar2000