MP3 supports the sampling rate 44100 hertz. Maybe you meant that?

IDJC will stream any MP3 file at any MP3 sample rate. IDJC does not do direct streaming. MP3 files going to the stream are decoded, possibly resampled then sent out as recoded MP3 (or whatever format you decided to stream as). There is absolutely no point to converting any of your music collection to any other format/bit-rate/sample-rate although any CDs you wish to use would require ripping first.