Here, preamp is 0, DVC on and off tested, equalizer reinstaled, "crackling" still occurs. Today, after a security update for the S6 Lite, it only happened about 5 times on Spotify when switching songs manually. I tested for an hour.
Occurs with and without headphones, on Spotify and Youtube. Samsung Dolby Atmos always off.
Noises when changing sounds don't bother, the problem is when this noise keeps repeating itself until the device is mutated. Rare, but it happens and it's scary when I have headphones on. 😅