Fix bugs

merge

@@ -6,17 +6,19 @@ if [ $files -eq 1 ]; then
     cd $(ls)
 fi
 
-convert -density 300 *.pdf -resize 1440x1080! '%01d'.png
+convert -density 300 *.pdf -resize 1440x1080! '%d'.png
 count=$(ls *wav | wc -l)
+files=""
 
-for i in `seq 0 $count`; do
+for i in `seq 0 $(($count - 1))`; do
     # fade
     duration=$(sox $i.wav -n stat 2>&1 | grep Length | cut -d ':' -f 2 | tr -d '[:space:]')
     sox $i.wav faded-$i.wav fade 0:0.1 $(soxi -d $i.wav) 0:0.1
+    files="$files faded-$i.wav"
     echo -e "file '$i.png'\nduration $duration" >> video-input-list.txt
 done
 
-sox faded-{0..$count}.wav output.wav
+sox $files output.wav
 
 ffmpeg -f concat -safe 0 -i video-input-list.txt output.mp4
 ffmpeg -i output.mp4 -i output.wav -c:v libx264 final.mp4