Top 5 Audio Enhancers to Convert MP3 to 320kbps from 128kbps
Are the FLACs from free-mp3-download.net legitimate? I found one song that has cutoff at ~16kHz (top). Most songs still have some cutoff at the top like 320K MP3 (middle) plus there's some
320kbps MP3 - Why is there a clear line near 16khz on spectrogram? - Sound Design Stack Exchange