Generate Audio AAC For Profiles

genaac.sh

#! /bin/bash
#
# genaac.sh
# Copyright (C) 2015 Emiliano Firmino <emiliano.firmino@gmail.com>
#
# Distributed under terms of the MIT license.
#

aac_enc() {
    # $1 - audio input
    # $2 - aac profile [low, he, he_v2]
    # $3 - channel number
    # $4 - frequency in KHZ
    ffmpeg -i $1 -c:a libfdk_aac -profile:a aac_${2} -ac $3 -ar ${4}k ${1%.*}_ch${3}_${4}k_${2}.mp4
}

for prof in low he he_v2; do
for ch in 1 2; do
for freq in 24 48; do

aac_enc $1 $prof $ch $freq

done
done
done