Horns and boundaries both concentrate sound into restricted solid angles
Related
- Vocal tract sound transmission is governed by cross-sectional area (similarity 0.80)
- Walls must be rough on many scales to scatter sound diffusely (similarity 0.80)
- Hard reeds fix pitch, freeing resonators to shape only harmonics (similarity 0.79)
- Spherical enclosures give the smoothest loudspeaker frequency response (similarity 0.79)
- Piano hammers and drumsticks produce repeated impacts creating non-linearity (similarity 0.78)