1. 1 My Beats Final Presentation Mike Smith, Karen Tipping, Dylan Barrett

2. Project Overview Goal: Create a dynamic track generator to allow any song to be played on beat games Key Ideas:  Use Analyze to get musical information  Use heuristics to effectively map song to tracks of multiple difficulty levels  Use Frets on Fire as (temporary) front end

3. Analyze Interaction Outsource the song analysis Create Connection to upload song Retrieve results

4. Scale Conundrum A single 12 pitch scale  A,B,C....,E,F,G with some #’s thrown in Overall key of the song Whole song not within major key  Can’t reliably create tracks

5. Future Improvements Need another 10% Modularity = Easy Swappability Better Track processing  Based on actual song structure

6. Track Generation Start: List of Notes  Map to Buttons Even distribution  Run Heuristics to generate levels Output Song Tracks

7. Heuristics Lowest Priority notes first to be cut Volume  Higher priority to louder, more distinct notes Note Density  Higher priority to more isolated notes

8. Heuristics Cont Note Progression:  Low priority if: Note in middle of increase/decrease or level segment  Moderate priority if: Note same as before or after note  High priority if: Note is distinct

9. The MIDI Generator Input: Tracks generated from song data and stored in a convenient data structure We must now put this information in a MIDI file  EASY We must make sure it follows Frets on Fire’s (undocumented) format  HARD

10. The MIDI Generator Procedure:  Create MIDI sequence using Java MIDI library  Loop through track information and add events for each of the tracks Trouble:  Generated MIDI files crashed Frets on Fire  Needed to reverse engineer Frets on Fire sample MIDI file

11. Timing Troubles Frets on Fire  Song plays alongside a MID file  Song is based on actual time  MID is based on BPM, Notes/Beat, and Ticks per Quarter Note  Even hand made songs are difficult to get right

12. The OGG Generator Goal: Allow My Beats to accept multiple audio file types and convert (if necessary) to OGG type for Frets on Fire Problem: No cross platform solution! Solution: Include code for converting files for each major OS and let Java runtime decide which to use Compromise: Include existing converters

13. Future Plans Replace (or upgrade) Analyze to allow for differentiation between scales Create a better set of heuristics Replace Frets on Fire with our own front end Integrated file conversion (necessary ??)

14. Demonstration On Mike’s Laptop!