time morse -l "Play it again barry." | while read line; do morse-snd "$line";done
You now hear: .--.;.-..;.-;-.--;SP
You now hear: ..;-;SP
You now hear: .-;--.;.-;..;-.;SP
You now hear: -...;.-;.-.;.-.;-.--;STOP
You now hear: SP
You now hear: EOT
            
real	0m33.488s
user	0m0.220s
sys	0m0.315s

+ ~ $ morse  "Play it again barry."
.--.;.-..;.-;-.--;SP..;-;SP.-;--.;.-;..;-.;SP-...;.-;.-.;.-.;-.--;STOPSPEOT

+ ~ $ morse-snd ".--.;.-..;.-;-.--;SP..;-;SP.-;--.;.-;..;-.;SP-...;.-;.-.;.-.;-.--;STOPSPEOT"
You now hear: .--.;.-..;.-;-.--;SP..;-;SP.-;--.;.-;..;-.;SP-...;.-;.-.;.-.;-.--;STOPSPEOT
+ ~ $

#!/bin/bash
# Working idea, Barry walker, G0LCU...
# Modified by Simon Arjuna Erat, sea
# Morse.sh --> morse-sox aka morse-snd
# Sounder for Morse at about 8 WPM...
# Output can be used to modulate an SSB HF transceiver...
# OSX 10.7.5, default bash terminal AND SOX.
# Just as easily do cat /tmp/sample.raw > /dev/dsp for machines with /dev/dsp.

WAIT_SIGN=0.05
WAIT_CHAR=0.5
WAIT_WORD=1.5
WAIT_SPACE=2

SOX=$(which sox||locate sox)
if [[ ! -f /tmp/dit.raw ]]
then	data="\\x80\\x26\\x00\\x26\\x7F\\xD9\\xFF\\xD9"
	sample=0
	# Create files & permission
	for F in dit dah;do
		> /tmp/$F.raw
		chmod 644 /tmp/$F.raw
	done
	# Increase data string
	for sample in {0..6} ; do data=$data$data ;done
	# Do not touch Barrys creations
	printf "$data" >> /tmp/dit.raw
	printf "$data" >> /tmp/dah.raw
	printf "$data" >> /tmp/dah.raw
	printf "$data" >> /tmp/dah.raw
fi

play_dot(){ $SOX -r 8000 -b 8 -c 1 -e unsigned-integer /tmp/dit.raw -d > /dev/null 2>&1 ; }
play_dash(){ $SOX -r 8000 -b 8 -c 1 -e unsigned-integer /tmp/dah.raw -d > /dev/null 2>&1 ; }

for input in $@;do
	printf "You now hear: " #$input"
	
	case "${input:2}" in
	"SP")	printf "SP"
		sleep $WAIT_SPACE 	;;
	"ST")	printf "STOP"
		sleep $WAIT_WORD 	;;
	*)	for (( i = 0; $i < "${#input}"; i = $i +1 ))
		do	printf "${input:$i:1}"
			case "${input:$i:1}" in
			"-")	play_dash	;;
			".")	play_dot	;;
			";")	sleep $WAIT_CHAR ;;
			esac
			sleep $WAIT_SIGN
		done
		;;
	esac
	printf "\nNew word..."
	sleep $WAIT_WORD
	printf "\r            \r"
done