Audioconvert.md

@@ -0,0 +1,15 @@
+The following script is able to batch-convert audio files to the `m4a` format.
+
+```shell
+#!/usr/bin/env sh
+
+for file in "$@"; do
+    target="${file%.*}.m4a"
+    if ffmpeg -i "$file" -vn "$target"; then
+        rm "$file"
+    else
+        echo "Could not convert $file"
+        exit 1
+    fi
+done
+```