#!/usr/bin/env zsh

case $1 in
    w) noise_type='whitenoise' ;;
    b) noise_type='brownnoise' ;;
    p) noise_type='pinknoise' ;;
    *) printf "%s is a wrong noise type\n" $1 >&2 ; exit 1 ;;
esac

exec play -n synth $noise_type