Unfortunately, there is no AVS Audio Converter for Mac currently.
AVS Audio Converter can read all most all key audio and video formats and output audio in MP3, WMA, WAV, M4A, M4B, M4R, AAC, AMR, AWB, OGG, MP2, FLAC. In addition, you can edit your audio Files before conversion like trim, delete parts, merge files, apply effects, modify extra text information in your audio files. AVS Audio Converter is Windows program to convert audio between MP3, WAV, WMA, M4A, FLAC, M4R, AIFF, M4B, OGG, AAC, AMR, etc.