Musicster: A Location-Aware Music Player David Zhao Kevin West

Project Review What does it do? What is it good for? Who will care? Plays different music at different locations Adjust the speed of the music so it ends when you reach your destination. What is it good for? Listen to music between classes Automatically switch the type of music Who will care? Students walking between classes People want a smart music player

Related Work Other location-aware applications Location-Aware To-Do List Location-Aware Reminder

Demonstration What will the demo be like? Original Scenario: Show the two different aspects of the project Selection of playlist based on location (building accuracy) Alter the speed of music according to velocity of movement Simulate user moving with Placelab log file Original Scenario: Aimed for room-accuracy.

Implementation - Components Placelab Gives us coordinates of current location PocketPlayer Music player core that decodes and provides basic UI Plugin architecture to allow DSP/Control modifications

Implementation

Implementation What is done? What is not done? Placelab Analyzer Playlist selection Speed adjustment by pitch shift What is not done? Frequency independent speed adjustment Database for locations UI for creating location entries

Implementation What issues remain? Accuracy of Placelab: velocity estimates jump a lot Better integration of components

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Evaluation Criteria: How accurate is the velocity and location detection Is there audible difference when the music is sped up? Will people find this to be useful?

Future Work Make a nice UI for controlling the system Using accelerometer or other sensors to detect velocity more accurately Using other sensors to control music playback