Noise Removal using avconv and sox

clean_noise.sh

#!/bin/sh

# Tested with :
# * avconv version 9.13-6:9.13-0ubuntu0.14.04.1,
# * SoX v14.4.1
#
# Just run clean.sh input_file.mp4 output_file.mp4

INPUT=$1
OUTPUT=$2
LOG="$OUTPUT".log

echo "Extrayendo video ..."
avconv -i "$INPUT" -an -vcodec copy /tmp/tmpvid.mp4 >> "$LOG" 2>&1 
echo "Extrayendo audio ..."
avconv -i "$INPUT" -vn -acodec copy /tmp/tmpaud.mp3 >> "$LOG" 2>&1 
echo "Preparando Noise Sample ..." 
avconv -i "$INPUT" -vn -ss 00:00:00 -t 00:00:01 /tmp/noiseaud.mp3 >> "$LOG" 2>&1 
echo "Generando Noise Profile ..."
sox /tmp/noiseaud.mp3 -n noiseprof /tmp/noise.prof >> "$LOG" 2>&1 
echo "Eliminando Ruido ..." 
sox /tmp/tmpaud.mp3 /tmp/tmpaud-clean.mp3 noisered /tmp/noise.prof 0.21 >> "$LOG" 2>&1 
echo "Generando nuevo video ..." 
avconv -i /tmp/tmpaud-clean.mp3 -i /tmp/tmpvid.mp4 -acodec copy -vcodec copy "$OUTPUT" >> "$LOG" 2>&1 
echo "Limpiando archivos temporales ..."
rm -rf /tmp/*.mp3 /tmp/*.mp4 >> "$LOG" 2>&1 
echo "Listo."