make fun beep boop sounds

soxbeep.sh

#!/bin/bash
# usage: soxbeep [N] [duration]
# where N = number of beeps (default 1) and duration = duration in seconds (default 0.2)
# try e.g. soxbeep.sh 7

# c g d a e # penta M
notes=( 323.63 384.87 432.00 513.74 576.65 647.27 769.74 864.00 1027.47 1153.30 1294.54 ) # 1539.47 1728.00)
duration=0.2

function beep() {
  frequency=${notes[$RANDOM % ${#notes[@]} ]}
  play -q -n synth $duration tri $frequency 2>&-
}

if [ "$1" ]; then
  n="$1"
else
  n=1
fi

if [ "$2" ]; then
    duration=$2
fi

for blah in $(seq $n); do
  beep
done