Both AVI and WAV are popular audio formats. Sometimes, maybe your device is not compatible AVI but compatible WAV. In this status, free AVI to WAV Converter can do you a favor! DoremiSoft AVI to WAV Converter, this free software is suitable for both newbies and veterans. It has a clear-cut UI to operate for beginners. However, it also provides complicated setting parameters for advanced users. you set different channels, sample rate, volume.