Command to encode all *.wav files from a specific folder:
for /r “D:\WAV Files\" %F in (*.wav) do neroAacEnc.exe -q 0.4 -lc -if “%F" -of “%~dpnF.mp4″
The encoder will automatically choose which is the appropriate AAC profile to use based on the bit rate level chosen (or what bit rate the -q value you’ve chosen relates to), as follows (this may change over time):
|AAC Profile||Full name of profile||Bit Rate Range
|LC-AAC||Low Complexity (normal AAC)||>= 85 kbps|
|HE-AAC||High Efficiency AAC||< 85 kbps|
|HE-AAC v2||High Efficiency AAC version 2||< 40 kbps|
HE AAC itself can not achieve transparency, so it is not a replacement for LC AAC but rather its extension and should be the audio codec of choice for internet, mobile, and broadcasting arenas.