In my game, I need to play a constant, background sound (running engine). Any advice how to do it?
When i try to loop a WAV file , every time it loops, I can clearly hear about 0.5 of silence ( Nokia 97 here, but the same problem is also hearable in the emulator ).

a ToneSequence perhaps? But how to generate one that sounds like a running engine? And wouldn't it also stutter?
or MIDI?