1 files changed, 81 insertions, 0 deletions
diff --git a/ar/.local/bin/noisereduce b/ar/.local/bin/noisereduce
new file mode 100755
index 0000000..709b257
--- /dev/null
+++ b/ar/.local/bin/noisereduce
@@ -0,0 +1,81 @@
+#!/bin/sh
+
+usage() {
+  printf "Usage : noisereduce <input video file> <output video file>\n"
+  exit 1
+}
+
+# Tests for requirements
+ifinstalled ffmpeg || {
+  echo >&2 "We require 'ffmpeg' but it's not installed."
+  exit 1
+}
+ifinstalled sox || {
+  echo >&2 "We require 'ffmpeg' but it's not installed."
+  exit 1
+}
+
+if [ "$#" -ne 2 ]; then
+  usage
+fi
+
+if [ ! -e "$1" ]; then
+  printf "File not found: %s\n" "$1"
+  exit
+fi
+
+if [ -e "$2" ]; then
+  printf "File %s already exists, overwrite? [y/N]\n: " "$2"
+  read -r yn
+  case $yn in
+  [Yy]*) ;;
+  *) exit ;;
+  esac
+fi
+
+inBasename=$(basename "$1")
+inExt="${inBasename##*.}"
+
+isVideoStr=$(ffprobe -v warning -show_streams "$1" | grep codec_type=video)
+if [ -n "$isVideoStr" ]; then
+  isVideo=1
+  printf "Detected %s as a video file\n" "$inBasename"
+else
+  isVideo=0
+  printf "Detected %s as an audio file\n" "$inBasename"
+fi
+
+printf "Sample noise start time [00:00:00]: "
+read -r sampleStart
+if [ -z "$sampleStart" ]; then sampleStart="00:00:00"; fi
+printf "Sample noise end time [00:00:00.900]: "
+read -r sampleEnd
+if [ -z "$sampleEnd" ]; then sampleEnd="00:00:00.900"; fi
+printf "Noise reduction amount [0.21]: "
+read -r sensitivity
+if [ -z "$sensitivity" ]; then sensitivity="0.21"; fi
+
+tmpVidFile="/tmp/noiseclean_tmpvid.$inExt"
+tmpAudFile="/tmp/noiseclean_tmpaud.wav"
+noiseAudFile="/tmp/noiseclean_noiseaud.wav"
+noiseProfFile="/tmp/noiseclean_noise.prof"
+tmpAudCleanFile="/tmp/noiseclean_tmpaud-clean.wav"
+
+printf "Cleaning noise on %s...\n" "$1"
+
+if [ $isVideo -eq "1" ]; then
+  ffmpeg -v warning -y -i "$1" -qscale:v 0 -vcodec copy -an "$tmpVidFile"
+  ffmpeg -v warning -y -i "$1" -qscale:a 0 "$tmpAudFile"
+else
+  cp "$1" "$tmpAudFile"
+fi
+ffmpeg -v warning -y -i "$1" -vn -ss "$sampleStart" -t "$sampleEnd" "$noiseAudFile"
+sox "$noiseAudFile" -n noiseprof "$noiseProfFile"
+sox "$tmpAudFile" "$tmpAudCleanFile" noisered "$noiseProfFile" "$sensitivity"
+if [ $isVideo -eq "1" ]; then
+  ffmpeg -v warning -y -i "$tmpAudCleanFile" -i "$tmpVidFile" -vcodec copy -qscale:v 0 -qscale:a 0 "$2"
+else
+  cp "$tmpAudCleanFile" "$2"
+fi
+
+printf "Done"