User:
Title: broken DTMF code generator
Content:
#!/bin/sh
#generate DTMF tones
#requires ffmpeg and aplay
#the whole program is in an endless loop:
#it asks for a number/symbol/letter,
#plays the correspnoding code, and
#begins anew.
while true; do
read -p "Type number/symbol/letter here: " -N 1
case $REPLY in
1)
echo ; ffmpeg \
-f lavfi -i "sine=frequency=697:duration=0.50" \
-f lavfi -i "sine=frequency=1209:duration=0.50" \
-f wav pipe:1 2>/dev/null | aplay 2>/dev/null
;;
2)
echo ; ffmpeg \
-f lavfi -i "sine=frequency=697:duration=0.50" \
-f lavfi -i "sine=frequency=1336:duration=0.50" \
-f wav pipe:1 2>/dev/null | aplay 2>/dev/null
;;
3)
echo ; ffmpeg \
-f lavfi -i "sine=frequency=697:duration=0.50" \
-f lavfi -i "sine=frequency=1477:duration=0.50" \
-f wav pipe:1 2>/dev/null | aplay 2>/dev/null
;;
a)
echo ; ffmpeg \
-f lavfi -i "sine=frequency=697:duration=0.50" \
-f lavfi -i "sine=frequency=1633:duration=0.50" \
-f wav pipe:1 2>/dev/null | aplay 2>/dev/null
;;
4)
echo ; ffmpeg \
-f lavfi -i "sine=frequency=770:duration=0.50" \
-f lavfi -i "sine=frequency=1209:duration=0.50" \
-f wav pipe:1 2>/dev/null | aplay 2>/dev/null
;;
5)
echo ; ffmpeg \
-f lavfi -i "sine=frequency=770:duration=0.50" \
-f lavfi -i "sine=frequency=1336:duration=0.50" \
-f wav pipe:1 2>/dev/null | aplay 2>/dev/null
;;
6)
echo ; ffmpeg \
-f lavfi -i "sine=frequency=770:duration=0.50" \
-f lavfi -i "sine=frequency=1477:duration=0.50" \
-f wav pipe:1 2>/dev/null | aplay 2>/dev/null
;;
b)
echo ; ffmpeg \
-f lavfi -i "sine=frequency=770:duration=0.50" \
-f lavfi -i "sine=frequency=1633:duration=0.50" \
-f wav pipe:1 2>/dev/null | aplay 2>/dev/null
;;
7)
echo ; ffmpeg \
-f lavfi -i "sine=frequency=852:duration=0.50" \
-f lavfi -i "sine=frequency=1209:duration=0.50" \
-f wav pipe:1 2>/dev/null | aplay 2>/dev/null
;;
8)
echo ; ffmpeg \
-f lavfi -i "sine=frequency=852:duration=0.50" \
-f lavfi -i "sine=frequency=1336:duration=0.50" \
-f wav pipe:1 2>/dev/null | aplay 2>/dev/null
;;
9)
echo ; ffmpeg \
-f lavfi -i "sine=frequency=852:duration=0.50" \
-f lavfi -i "sine=frequency=1477:duration=0.50" \
-f wav pipe:1 2>/dev/null | aplay 2>/dev/null
;;
c)
echo ; ffmpeg \
-f lavfi -i "sine=frequency=852:duration=0.50" \
-f lavfi -i "sine=frequency=1633:duration=0.50" \
-f wav pipe:1 2>/dev/null | aplay 2>/dev/null
;;
'*')
echo ; ffmpeg \
-f lavfi -i "sine=frequency=941:duration=0.50" \
-f lavfi -i "sine=frequency=1209:duration=0.50" \
-f wav pipe:1 2>/dev/null | aplay 2>/dev/null
;;
0)
echo ; ffmpeg \
-f lavfi -i "sine=frequency=941:duration=0.50" \
-f lavfi -i "sine=frequency=1336:duration=0.50" \
-f wav pipe:1 2>/dev/null | aplay 2>/dev/null
;;
'#')
echo ; ffmpeg \
-f lavfi -i "sine=frequency=941:duration=0.50" \
-f lavfi -i "sine=frequency=1477:duration=0.50" \
-f wav pipe:1 2>/dev/null | aplay 2>/dev/null
;;
d)
echo ; ffmpeg \
-f lavfi -i "sine=frequency=941:duration=0.50" \
-f lavfi -i "sine=frequency=1633:duration=0.50" \
-f wav pipe:1 2>/dev/null | aplay 2>/dev/null
;;
*)
echo #newline, added to not garble the screen
continue
;;
esac
done