Citra, the impressive and quickly moving Nintendo 3DS emulator has a new progress report out and it sounds great.
They've made some great progress on accurate audio emulation, with their new "LLE (Accurate)" option. They say this has enabled games like Pokémon X / Y, Fire Emblem Fates and Echoes and more to work. There's a downside though, that currently the performance does take quite a hit with it so they're still recommending the "HLE (Fast)" setting for now.
They go into quite a lot of detail about how they got here, with plenty of bumps along the way. Most of the work towards this, was done by a single developer who suffered a bit of a burn-out over it.
While they're going to work towards getting the new LLE option playable, they do say that the HLE option will probably remain as the go-to option, with LLE becoming a useful tool to help find and debug audio issues to further improve audio in Citra overall.
Fascinating stuff, I do love seeing what emulator developers have to go through to get things working. You can see their full post on it here.