The sound is just a tone lower. And it's not a problem with the audio player, I checked, and it's not a problem with the speaker, it's the same with headphones. What do I do?
Answer from: ITFIX24:
Check the sample rate (44100kHz, 48000kHz, etc.) in the settings of your device. This usually happens when the sampling frequency of the audio file does not match the sampling frequency of the device itself. Depending on the settings, the tone and playback speed can be higher or lower.