#!/bin/bash
sudo kill `ps -ax | grep 'coreaudiod' | grep 'sbin' |awk '{print $1}'`

# I have the command aliased as "ra" in terminal so I can quickly call it.
# This is done by inserting the following line into your ~/.bash_profile:

# alias ra="sudo kill `ps -ax | grep 'coreaudiod' | grep 'sbin' |awk '{print $1}'`"