Tonehole radiation directivity: A comparison of theory to measurements

Overview

• Goal:
  • Verification of linear acoustic theory and synthesis model results

• Tonehole Acoustic Theory:
  • Frequency-domain model: Keefe (1981)
  • Time-domain synthesis models: Scavone and Smith (1997), Scavone and Cook (1998)
  • Radiation and directivity: Levine and Schwinger (1948)

• Data Acquisition:
  • Measurement setup
  • Driver signal: Farina (2000)
  • Microphone locations

• Data Processing:
  • Input response
  • Internal pipe attenuation

• Measurements vs. Model Results