The title isn't clear but (sub-) 10ms is the target.
The "problem" part is that Android devices generally don't come close, the lowest-latency Android device on the market today (barring Samsung's custom "Professional Audio SDK") has a 35ms roundtrip latency (ADC -> DAC), and many devices are way beyond 100ms (http://superpowered.com/latency/)
The "problem" part is that Android devices generally don't come close, the lowest-latency Android device on the market today (barring Samsung's custom "Professional Audio SDK") has a 35ms roundtrip latency (ADC -> DAC), and many devices are way beyond 100ms (http://superpowered.com/latency/)