1. Headphones plugged in only (not speakers or blue tooth)
2. The phone volume is fairly low 1-3
3. Music / Video is playing and there is a quiet passage e.g. music fading out, whispering in a film, sharp drop in volume of a song
The effect is that rather than playing the sound the sound completely cuts out.
My current suspicion is that it is something like a headphone amplifier power saving measure. Essentially cutting off the sound amplification if the system believes just white noise / hiss is coming through the headphones.
I have tons of music that triggers this issue (only permanently up tempo music such as dance and most pop do not trigger this issue), I have tested in Cyanogen, PA & SlimBean. Others have reported this issue in Stock ICS.
Does anyone know if the current Stock Samsung has this issue or not, before I attempt to get support from Samsung who presumably have done all their audio testing with Gungam Style and therefore have managed to miss this massive issue?