Sound Radiation and Propagation
Sound Radiation and Propagation
Far field sound pressure on-axis
- SPL sensitivity at 1W and 1m on-axis
- Mean level in frequency band
- Effective frequency range
Directional radiation characteristics
- Off-axis far field SPL response
- Directional response pattern
- Polar and balloon plots
- Coverage and radiation angle
- Directivity index
- Sound power response
Near field measurement
- Extrapolated far-field SPL response
- Low frequency measurements without anechoic condition
- Splicing near-field/ far-field measurement
- Merging multiple sound sources
- Distortion measurements at high SNR
Area of radiation
- Effective radiation area Sd
Radiation analysis
- Far field SPL-response generated in a half space
- Directivity index, sound power response
- Polar and balloon plot
- In-phase component (constructive contribution to SPL)
- Anti-phase component (destructive contribution to SPL)
- Quadrature component (no contribution to SPL)