So I get a voice note/message from someone in WhatsApp. When I play the message, there would be a beep sound (default ringtone) playing at the same time and the same duration as the message, I can hear the message. But the notification sound mixing in is annoying. All other sounds and actions of the phone is as per normal. So this only happens when I actually PLAY the WhatsApp message. Almost as if the sender recorded this and sent it. But they did not. (I did a test).