a program to communicate with phone tty/tdd devices (telecommunications devices for the deaf) via a sound card, without tty modem. a simple interface between sound card and phone line or acoustic connection with phone handset are used.together with "virtual audio cable" software calltty can work via skype internet-phone, without additional hardware at all.

cool mp3 converter is a tool that lets you convert files in batches from wav files into mp3 or microsoft media audio (wma) format and back. it converts mp3 or wma files into wav format for burning onto cd and converts wav files into mp3 or wma format for listening to your favorite music in smaller size and compatible with most mp3 player.