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千人交響樂

千人交響樂. Yiju Lin Advisor : A lvin Su. Outline. The Signals of Music Method Flowchart LPC synthesis Synthesis Handling problem Demo Future work. The Signals of Music. Harmonics part Ex : C1, D1, … Residual ( Noise ) part. Method. Get the filter coefficients

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千人交響樂

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  1. 千人交響樂 YijuLin Advisor : Alvin Su

  2. Outline • The Signals of Music • Method • Flowchart • LPC synthesis • Synthesis • Handling problem • Demo • Future work

  3. The Signals of Music • Harmonics part • Ex : C1, D1, … • Residual ( Noise ) part

  4. Method • Get the filter coefficients • Set the filters with different coefficients of timbre, pitch ,and amplitude • Than get the result

  5. Flowchart Violin I -1 Violin I Violin I -… Violin I -250 Violin II Score only Viola Cello

  6. LPC synthesis 只是找形狀 得到 filter的參數 True envelope estimation TE- LPC Coefficients Impulse Train * LPC Filter = Harmonics Part

  7. Synthesis True envelope coefficients Result System Part of result & Setting

  8. Handling problem • Make the database to save the coefficients of different pitches • Dealing a note at a time(synthesis) • Dealing the different violins at a time(only 4..) • A bar a wav • Volume of a note • Length of a note

  9. Demo • Original • Systhesis(bar 1) (bar 2) • And random change the volume of the notes

  10. Future work • Use MPI(for windows) to get the result of other instrument • Make a better score reader • More expression • More like the real • Real time

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