How to mux 6 mono wavs to AC3 with GraphEdit?

[huckey]

Hi,
I have 6 mono wavs which I want to mux (mix?) to AC3. I tried it with BeSweet but it does not work for me (I get all sorts of errors), so I decided to give it up.

Ffmpeg does not work for me either.

Therefore I would like to give it a try with GraphEdit. I do not however how I should build my graph to get an *.ac3 file in the end out of my 6 wavs.

So far I was converting directly from DTS to AC3 and there I had a simple graph: DTS/AC3 source->ffdshow Audio Decoder->File Writer. My guess is to replace the first element with a corresponding processing for the 6 wavs.
Can you help me with how I should build my graph to convert 6 mono wavs to AC3?

Thanks!

Best regards

Huckey

[gadgetguy]

I don't know how to do it with GraphEdit, but here's how I convert 6 mono wavs to 5.1 AC3.
Use the following AviSynth script, (replacing the appropriate filenames).

Video = Colorbars(720, 480).ConvertToYV12().Trim(0, 3596)
LC = WavSource("G:\Video\LeftChannelPlus.wav").SSRC(48000)
CC = WavSource("G:\Video\CenterChannelPlus.wav").SSRC(48000)
RC = WavSource("G:\Video\RightChannelPlus.wav").SSRC(48000)
LS = WavSource("G:\Video\LeftSurroundPlus.wav").SSRC(48000)
RS = WavSource("G:\Video\RightSurroundPlus.wav").SSRC(48000)
BC = WavSource("G:\Video\BaseChannelPlus.wav").SSRC(48000)
Audio = MergeChannels(LC, CC, RC, LS, RS, BC)
AudioDub(Video, Audio)

Then open the script in QuEnc and on the Advanced Options under Mux Profile select "No Video", AC3, and your desired bitrate.

[huckey]

Hi,
first of all I want to thank gadgetguy for his hint with QuEnc - it worked for me!

Secondly (and that is the reason I answer to my own post and not gadgetguy's) I want to share my discovery. It is not an answer to the question in the title but I hope it can help many because I have found many posts with problem like mine.

The problem that made me try to encode AC3 with GraphEdit was that I was not able to convert my 6 mono wavs with any other tool (QuEnc included). These 6 wavs I have created with Audacity.

The reason that I discovered was that Audacity saved these wavs encoded with aflt codec. I compared it with wavs saved by Windows Sound Recorder - they were saved with araw codec. It seems that no matter what settings I choose in Audacity I always get waws coded with aflt.

So, to cut the long story short: in order to be able to encode 6 wavs to AC3 (at least with QuEnc) the wavs need to be encoded with araw codec and can not be encoded with aflt codec.

Hope this is of some help to others.

Best regards

Huckey

[DarrellS]

Thanks guys,
I've been trying for three days to figure out how to do this.

I demuxed the AC3 in VirtualdubMod and converted the AC3 to 5.1 Wave using Belight and everything would've been great if Audacity (since none of my payware would handle 5.1) would've saved the 5.1 wave that I edited as a 5.1 wave but it seems that although it was able to edit the file, saving the individual wave files was the reason that Belight, Besweet and even QuEnc crashed everytime I clicked the encode button.

I noticed when I fixed the wave files in Goldwave that some of the files were stereo instead of mono which would also make these programs choke.

[DarrellS]

Spent another day trying to get 5.1 wave files and first all I could get was out of sync audio files. All the tracks played at different times. I started over with the original AC3 file and edited it again to get the 6 files and although I could get a good AC3 file, I couldn't get a wave file at all. Belight crashed every time.

Finally found a program called Foobar and after downloading the foo_ac3.dll and putting it in the Components folder of Foobar, I was able to open the edited AC3 > Right Click the file and choose Convert > Convert to Same Directory and Choose WAV > Click OK

After 3 days, I finally have a 5.1 Wave file that plays perfect

[Malick]

Ac3Tools pro can do it very easily too