qq Music HD can download hi-res music. After downloading the Hi-Res audio file, we saw that it is a file with the suffix QMCFLAC. It is actually a FLAC format file with lossless audio. QQ Music has encrypted the file. Without decryption, it can only It can be played using the QQ Music APP. The file sampling rate is 48KHz, the size is 53.86MB, the duration is 4 minutes and 24 seconds, and the bit rate is 1693Kbps. Just decrypt the QMCFLAC file.