OS X (Apple)

#!/bin/bash
# calcsine.sh
clear
> /tmp/sinefloat
> /tmp/sine.raw
> /tmp/ascii
angle=0
step=45
text=""
line=""
# Create an 8 plot floating point sinewave table, I couldn't get "scale=0" to work correctly.
while [ $angle -le 359 ]
do
	bc -l <<< "{sin=((s($angle*6.2832/360)*47)+79); print sin,\"\\n\"}" >> /tmp/sinefloat
	#angle=$[ ( $angle + $step ) ]
	angle=$((angle+step))
done
cat < /tmp/sinefloat
echo ""
# Import each flaoting point line, create an integer value, convert to ASCII and save.
while read line
do
	printf "${line/.*}\n"
	#printf \\`printf '%03o' ${line/.*}` >> /tmp/ascii
	printf \\$(printf '%03o' ${line/.*}) >> /tmp/ascii
done < /tmp/sinefloat
# Now generate a 65536 byte RAW sinewave file using ASCII only.
read text < /tmp/ascii
echo ""
echo "Sinewave text string: $text"
for n in {1..13}
do
	text=$text$text
done
printf "$text" > /tmp/sine.raw
# For /dev/dsp users.
# cat < /tmp/sine.raw > /dev/dsp
# For SOX users, note this my SOX path you will have to edit your own...
/Users/barrywalker/Downloads/sox-14.4.0/play -v 1 -r 8000 -b 8 -c 1 -e unsigned-integer /tmp/sine.raw

Last login: Fri Aug  8 21:28:59 on ttys000
AMIGA:barrywalker~> ./calcsine.sh
79.00000000000000000000
112.23407975339525893445
125.99999999968292776011
112.23383560221254681395
78.99965471872028531385
45.76567609721566368521
32.00000000285365015760
45.76640855076378687120

79
112
125
112
78
45
32
45

Sinewave text string: Op}pN- -

/tmp/sine.raw:

 File Size: 65.5k     Bit Rate: 64.0k
  Encoding: Unsigned PCM  
  Channels: 1 @ 8-bit    
Samplerate: 8000Hz       
Replaygain: off         
  Duration: 00:00:08.19  

In:100%  00:00:08.19 [00:00:00.00] Out:361k  [======|======] Hd:2.4 Clip:0    
Done.
AMIGA:barrywalker~> _