1. Download and install the 'Lossless Music Validation Assistant: LoselessAudioValidator'

2. The Lossless Music Validation Assistant is as shown below, click the "File" menu to select a single file, and click "File" "Folder" to select all APE and FLAC files in a folder. When selecting files, you can select multiple files at once.

Note, do not click on the boot file CUE, it is not the music itself, and the verification is meaningless.

3. After all the files have been imported into the software interface, click the "Verify" button in the menu bar to start verifying the authenticity of the lossless file.

If you want to stop the verification, click the "Stop" button in the menu bar. The software will stop after the verification of the current file is completed. Just close the software at this time. If there are too many verification files and you want to delete some tasks or delete verified records, select all the files to be deleted (click on the first file, hold down the shift key with your left hand and click on the last file, so that between the two files All files between are selected), and then press the delete key.

4. Check the verification results: those with a green check mark "√" in front are considered to be "CD sound quality", that is, true lossless; those with a question mark "?" in blue are judged to be false lossless; Sometimes, a cross "×" in front of an individual file indicates a verification error, indicating that the software cannot detect it. At this time, other methods of verification are needed.

In the picture above, the last file is a fake APE converted from MP3.

From the "Result" column, you can also clearly see the judgment results: except for the last one, which shows "MPEG (indicating that it is converted from inferior MP3)", the others are all "CDDA".

5. From the verification result chart, you can also see the "Accuracy Rate" column. This bad information indicates the accuracy of the judgment result. Of course, 100% CDDA is the ideal state; in fact, as long as the result is "CDDA", it is acceptable. In most cases, the accuracy rate is between 95% and 100%.

The accuracy of the software can also be set by yourself. It is recommended to keep the default. The setting method is as follows: Select "Options" → "Software Settings" in the menu bar, open the parameter setting panel, switch to the "Calibration" interface (as shown in the figure), and click "Calibration Accuracy Level" and "Possibility Threshold" automatically Define data. After setting, click "Save".