Low Latency Audio. Cross Platform on Android, OSX and iOS. Free.
Android's 10 Millisecond Problem Mobile Audio Latency Test App Android Audio Player USB Audio and MIDI for Android
Full details on Superpowered update (version 0.8.5):
Other improvements for Superpowered version 0.8.5 include:
How to create a simple HLS audio player with seeking, buffering indicator and time displays. Choose from multiple live and vod streams, multiple download strategies and enable time stretching.
Proper cleanup. Start/stop methods. Automatic start/stop for silent audio when the app goes to the background to save battery.
Similar to the AndroidAudioIO and iOSAudioOutput classes, it implements an easy to use way to handle the default audio input/output of OSX. It has an internal fifo buffer for one callback input/output handling.
Supports HTTP Live Streaming. Fine pitch shifting using the setPitchShiftCents method. Direct reading from the iPod music library on iOS (check the offline example project for sample code).