The mobile terminal (telephone) is rapidly evolving from its origins as a basic device for voice communication into being an advanced multimedia computer able to handle demanding signal processing tasks in real time. Meanwhile, Java programming interfaces are gaining momentum as the preferred approach for third party application development on these same devices. This paper provides an introduction to a new standard interface known as "Advanced Multimedia Supplements" for accessing these features of new mobile devices from the Java programming language. The new interface augments the existing mobile media specification with mechanisms to control audio effect processing in real-time, including 3D positional audio and reverberation, all of which can be synthesized using standard stereo headphones or stereo microspeakers.
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