I need to be able to upload audio files onto my website (2nd party) that alllow the user to downlaod them - they don't have audio streaming at this stage. My file are MP3, and range from 3MB upto 20MB in size. I'm this will take some time for the user to dowlaod.
Question: How can I reduce the file size (increasing user friendliness in the downlaod time) whilst retaining a good audio quality (human voice)?