16 lines
346 B
Bash
Executable File
16 lines
346 B
Bash
Executable File
#!/bin/sh
|
|
|
|
lock=/tmp/.beep-lock
|
|
test -f $lock && exit 1
|
|
touch $lock
|
|
|
|
head -c 8 /dev/urandom |
|
|
hexdump -v -e '/1 "%u\n"' |
|
|
awk '{ split("0,3,5,6,7,10,12",a,",");
|
|
for (i = 0; i < 1; i+= 0.00012)
|
|
printf("%08X\n", 60*sin(450*exp((a[$1 % 8]/12)*log(2))*i)) }' |
|
|
xxd -r -p |
|
|
aplay -c 1 -f S32_LE -r 48000 -D plug:default
|
|
|
|
rm -f $lock
|