It is important to setup YOUR iPhone properly so YOU can hear properly from the “local host” or Smartphone device YOU are using. Believe it or not when YOU begin to use the audio methods to clear YOUR mind YOUR Smartphone might act weird. This is why it must be configured properly for individual use.
How to setup “Ignore Repeat” touches.
How to setup “Tap Assistance” using the “Initial Touch Location”.
How to setup “Mono Audio”. This means: the left and the right speakers of YOUR iPhone play the same content.