Is there any way to convert Wav to Aiff file?

[murarduino]

On Windows systems, I have tried many ways to convert WAV files to AIFF files, including Audacity or the Switch Sound File Converter. And set to PCM 8bit/22050 sampling rate according to README requirements.
The converted sound can be played in PotPlayer (the Aiff file in the example is in the Windows environment and cannot be played directly). I feel that this kind of conversion is not successful. It sounds like the voice is continuous, and the original melody cannot be heard at all.