1:FROM WAV,WMA,MP3,OGG,AAC,AU,FLAC,M4A,MKA,AIFF,OPUS?RA?AMR Can choose Bit rate:32k?64k?96k?128k?160k?192k?224k?256k?320k?Custom Sampling rate:11025? 22050? 44100 ?48000?Custom 2:NOTE: To choose Bit rate ?Sampling rate you should contact me for custom price quote. 3:The file size is limited to 200M.