abilash2012 - This is a Plug computer. It has no piezo or speaker and no "beep" codes.
popon - I had problems finding my FM receiver input before. This is one of the things the ices2 .xml file requires. I had to look through the /proc filesystem to find the number of the input device.
Another possibility is to use sox and the stdin part of ices2 like this -
sox -2 --endian little -t alsa hw:1 -t wav - vol 0.8 rate 16k | ices2 ices-stdin.xml
You still need to know the number of the input device, though.