Sounds really great! I am using DX for rendering/sound which I now kinda regret, because I am kinda stuck to Windows. Currently considering changing that to something platform indiependent.
Sound is kind of a pain to do cross-platform. Every library I’ve found is either hard to build or lacking in features.
FTR I’ve used SoLoud, PortAudio and MiniAudio, each in at least one project, but I can’t say I like any of them.
Don't know what features you need, but for my needs SDL2_mixer is doing good.
Can really recommend SDL2. If you encounter trouble, feel free to contact me.