Audio Converter is an easy-to-use app for Android to convert audio WAV, WMA, MP3, OGG, AAC, AU, FLAC, M4A, MKA, AIFF or RA file offline or online. Audio Converter takes three simple steps to finish audio conversion. First choose multiple audio files or choose a folder to add all audio files in it, then set options and target audio format you want to convert to. Options for target audio include audio bitrate and sample rate. Finally tap the "Convert audio files" button to start conversion. The conversion may take a few seconds to minutes depending on the audio file size and CPU performance of your phone. Audio Converter also supports video to audio conversion. For example, you can use this app to convert MKV, WMV, M4V, AVI, MOV, MPEG or MP4 video file to MP3 file. Additionally, we provide free online audio conversion service which doesn't occupy your phone CPU.