Multichannel AAC file output incorrect.

[bob99]

@pwhodges

This is seriously strange. I have the same settings, except that I specified the sample rate to match the input, and slower encoding. When I changed that to 44.1 and fastest encoding, as you have, it produced a 2-channel file at 88.2! (For clarity, that sample rate is as read from the header by MediaInfo.)

Is it possible that WaveLab is picking up a different AAC encoder from somewhere on my machine (which has a lot of software installed), whose parameters aren’t fully compatible?

Paul, just to confirm I get exactly the same result as you, using exactly the same multichannel file settings as PG’s screenshot, coming from a 44.1 khz 4 channel DVD montage with 2 stereo tracks. First track routed to Lf Rf, second track routed to Ls Rs. The AAC result file decodes in Wavelab as a stereo 88.2k file, which is a mix of the 4 channels. The result file also appears as 88.2 stereo in Foobar 2000.

Doing the same thing to wav multichannel results in a 44.1 multichannel file that appears as 44.1 4 channel in Foobar.