moznion/App--WithSound — pull request #19 by syohex (2013-03-01 06:44:17+00:00)
Title: Stop 'mpg123' after test

mpg123 keep running after test until stop_mpg123 called.
Following is `top` log after test(original code). CPU 100%!!

````
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
28994 syohei 20 0 99404 2792 2052 R 99.8 0.0 0:05.45 mpg123
````