Stereo biased to the right

[riggles1]

Minor improvement, but the way nestopia is currently handling the fake stereo effect is a bit too intense to the right side making it sound more like right side mono. Compare the stereo separation of mesen and fceumm that's more left-right balanced.

Love the sound of this emulator, especially with the volume sliders you get.

[JosepMC154]

This issue is still present and it's rather distracting. Any chance to get it fixed?