pitch audio

X2X Free Video Audio Merger is an easy to use and professional video merger.

It is powerful and fast Audio Converter, CD Ripper, and CD Burner software.

converts your audio files to mp3,wma,ogg,wav

video, audio chat, video conferencing within their business application.

Record audio streams directly into MP3 or OGG format with no conversion

It is focused aim is to convert WMP to MPEG-4 Audio and it's free.

Record audio and saves it directly into any format.

It is to convert WMA to Zen Audio and it's free.

It allows you to convert MPEG-4 Audio file to Vorbis format with fast speed.

Free PCM to Zen Audio Converter is a totally free conversion program.