diff --git a/.config/bash/module/transcode.sh b/.config/bash/module/transcode.sh
index c08d072..688f9a8 100644
--- a/.config/bash/module/transcode.sh
+++ b/.config/bash/module/transcode.sh
@@ -87,27 +87,32 @@ transcode()
 
 _transcode_gz-xz()
 {
+  [[ -f "${2}" ]] && return 0
   pv "${1}" | gzip -d | xz -9e > "${2}"
 }
 
 _transcode_xz-gz()
 {
+  [[ -f "${2}" ]] && return 0
   pv "${1}" | xz -d | gzip -1 > "${2}"
 }
 
 _transcode_mp3()
 {
-  ffmpeg -i "${1}" -c:a libmp3lame -b:a 320k -f mp3 "${2}"
+  ffmpeg -n -i "${1}" -c:a libmp3lame -b:a 320k -f mp3 "${2}"
 }
 
 _transcode_flac()
 {
-  ffmpeg -i "${1}" -c:a flac -f flac "${2}"
+  ffmpeg -n -i "${1}" -c:a flac -f flac "${2}"
 }
 
 _transcode_mka()
 {
-  ffmpeg -i "${1}" -c:a libopus -b:a 128k -vn "${2}"
+  local braudio=$(_ffprobe_ba "${1}")
+  [[ ${braudio} -gt 128 ]] && braudio=128
+
+  ffmpeg -n -i "${1}" -c:a libopus -b:a ${braudio}k -vn "${2}"
 }
 
 _transcode_mkv()
@@ -116,7 +121,7 @@ _transcode_mkv()
   local braudio=$(_ffprobe_ba "${1}")
   [[ ${braudio} -gt 128 ]] && braudio=128
 
-  ffmpeg -i "${1}" -c:a libopus -b:a ${braudio}k -c:v libsvtav1 -crf 30 -svtav1-params "fast-decode=1:tune=0" -preset 6 -pix_fmt yuv420p10le -g ${keyint} -vf "scale=-2:min'(1080,ih)'" "${2}"
+  ffmpeg -n -i "${1}" -c:a libopus -b:a ${braudio}k -c:v libsvtav1 -crf 30 -svtav1-params "fast-decode=1:tune=0" -preset 8 -pix_fmt yuv420p10le -g ${keyint} -vf "scale=-2:min'(1080,ih)'" "${2}"
 }
 
 # Export.