diff --git a/scripts/transcode_m4a.sh b/scripts/transcode_opus.sh
similarity index 57%
rename from scripts/transcode_m4a.sh
rename to scripts/transcode_opus.sh
index ee2aa95..8ca6e3a 100755
--- a/scripts/transcode_m4a.sh
+++ b/scripts/transcode_opus.sh
@@ -13,12 +13,14 @@ while [[ $# > 0 ]]; do
 done
 
 # ensure existence of destination folder
-dest=../transcode_m4a
+dir="$(pwd)"
+dest=${dir%/*}/${dir##*/}_ogg
 if [[ !(-d $dest) ]]; then
    mkdir $dest
 fi
 
 for file in ./*.$file_suffix; do
-   echo "ffmpeg -i '$file' -c:a libfdk_aac -profile:a aac_he -b:a 64k $map -movflags +faststart '$dest/${file%$file_suffix}m4a'";
-   ffmpeg -i "$file" -c:a libfdk_aac -profile:a aac_he -b:a 64k $map -movflags +faststart "$dest/${file%$file_suffix}m4a";
+   # `-vbr on -application audio` should be default, but let's be sure
+   echo "ffmpeg -i '$file' -c:a libopus -b:a 64k -vbr on -application audio $map '$dest/${file%$file_suffix}ogg'";
+   ffmpeg -i "$file" -c:a libopus -b:a 64k -vbr on -application audio $map "$dest/${file%$file_suffix}ogg";
 done