If we have an MP3 file and we decode it to an uncompressed WAV file and then later encode it to MP3 again at the same sample rate - why is it that the quality gets degraded?
This is a past exam question that I can't figure out. I know it has something to do with the fact that the MP3 codec uses lossy compression, but I can't figure out at what point it would remove more from it... - can anyone figure this out? Thanks in advance!