While lossy music files (like MP3s) are great for saving space on your device, they are missing vital information from the song’s original recording file. On the other hand, High-Resolution Audio file formats (such as FLAC and WAV) are created with lossless compression that allows the original data from a recording to be reconstructed almost perfectly by a class of algorithms. DSEE HX™ Technology lies somewhere in between. Here’s how:
Sony DSEE HX™ software upscales your existing sound source (those lossy MP3s or AACs) to near high-resolution sound quality. This means that the technology injects more life into your music by upscaling compressed files. So it restores the subtleties of the original song recording.