5.1 AAC to 6 Channel WAV and AC3

[nimrodim]

Hi there.

I am trying to convert a 5.1 AAC file to 6 mono wav files.
I used FAAD with the "Ivan & Menno" GUI to get a single multichannel wav file.
I then split this file with Wavewizard into 6 mono wav files.

I was wondering if there are any problems with the mapping of the channels using these programs.
And maybe you know of a direct way for the 5.1 AAC to 6 mono WAV files conversion?

The reason I want the wave file split, is because i use the center channel for measuring the dialogue normalization value which I then use for the AC3 encoder (Wav to Ac3 encoder v1.1).

[tebasuna51]

I was wondering if there are any problems with the mapping of the channels using these programs.
I don't know "Ivan & Menno" GUI, but faad output is a valid wav (WAVE_FORMAT_EXTENSIBLE) with correct MaskChannel and WaveWizard can manage this wav (don't forget check the 'Ignore size in header' for > 2GB) to produce correct channels mapping.
And maybe you know of a direct way for the 5.1 AAC to 6 mono WAV files conversion?
I know a direct way to convert aac 5.1 to ac3 5.1:

faad (http://kurtnoise.free.fr/index.php?dir=mp4tools/&file=faad2-2.7.7z) -w input.aac | aften -readtoeof 1 - output.ac3

The reason I want the wave file split, is because i use the center channel for measuring the dialogue normalization value which I then use for the AC3 encoder (Wav to Ac3 encoder v1.1).
Please forget the obsolete Dialog Normalization and let the default value -31 dB, the iput aac don't use DN (like mp3, CDA, TV commercials, and all other audio tracks)

EDIT: You can use also BeHappy with bass aac decoder and output ac3 with Aften or monowavs with WavSplit (included in BeHappy).