Unfortunately though, SDL uses sound only via a callback interface. While this is fine for many applications, it can get annoying sometimes, and in some applications which generate audio on the fly, not only can it be complicated to do properly, it might even be impossible to maintain proper sound sync.

source 2007, emulator? developer

In a past project I used SDL but the SDL audio API seemed quite lacking for serious game programming.

source 2008, Braid game developer