Before we dig into the details of profiling and tuning audio performance, we probably should go over the primary factors that determine an efficient audio system. When we talk about an audio system, we refer to all the components (Audio Source versus FMOD), resources (audio clips), mixes (Mixer versus FMOD), and effects. The major contributors to performance will be driven by the quality, size of resources, and/or the use of mixing and effects. Ultimately though, it all comes down to your chosen platform and the expected limitations of that platform. Since the type of platform is so important, we will consider those options first: