I am encoding on Radioboss Cloud into 4 formats. Mp3 @ 256kbps, AAC @ 256kbps, Ogg Vorbis @ 256kbps and Aac+ @ 64kbps. What format should the feed up to the cloud be ideally for transcoding purposes and retention as much as possible of frequency range across all formats? ie mp3, aac or some other. Need metadata, so Flac may not be an option also high bandwidth may not make it stable.