What are my options for playing simultaneous audio on an Android device with the least amount of latency? Am I going to get anything half decent out of the canned SDK, or i
Please see my answer to Android: sound API (deterministic, low latency).
The latency of an Android device depends less on the API and more on the hardware and drivers for that particular device. Enabling low latency playback consumes more power and increases the chances of audio glitches, so many OEMs will enlarge their playback buffers intentionally.