WAV to Ac3 5.1?

[adyf]

Have extracted the WAV from an avi file with virtualdub and converted to Ac3 with Sonic Foundry Soft Encode. After re authoring to dvd, when i play it with PowerDVD it shows up as 5.0 audio instead of 5.1. I have read in the forum that you have to input 6 mono WAVS into Sonic Foundry to get 5.1 audio, and i am convinced i am using the right settings in Sonic Foundry too therefore i believe i am doing something wrong with the WAV extraction and not inputting the correct WAV or WAVS into Sonic Foundry. Any help would be greatly appreciated.

[guns1inger]

Not everything reads the files correctly. Virtualdub may report all multichannel AC3s as 5.1. Soft Encode is (old and slow) pretty good at what it does, so if the LFE isn't in the output, chances are it wasn't in the input.

When you opened the wav file, did you specify 6 channels or only 5 ?

[adyf]

In virtualdub when you save the WAV file where do you specify either 5 or 6 channels?

[guns1inger]

When you load it into Soft Encode you will get the option to specify the number of channels. If you specify 5 when there should be 6, the LFE will be the one dropped.

[adyf]

When i import WAV file as Microsoft PCM i do not see this option, but when i import WAV as raw data i do. I now have all 6 channels in Soft Encode but the track length should be 1 hour 43 mins but they are only showing 34 mins, which is strange. When i import as Microsoft PCM the track length is correct but only 2 channels are present. Any ideas guns1inger? Your patience is very much appreciated.