Abstract
Based on the principle of resonance to improve the sound intensity of loudspeaker, the effect of the sound characteristics of loudspeaker with different size of varying and constant cross-section tubes was studied by experiments. The results showed that the varying cross-section tubes are good radiators and the constant cross-section tubes of 1/4 wave length are good resonators. Air flow with sound periodically pass through varying cross-section tubes generating 137.2 dB high intensity sound at 1m distance from the outlet of the tube, whereas 120 dB for constant cross-section.
| Original language | English |
|---|---|
| Pages (from-to) | 715-718 |
| Number of pages | 4 |
| Journal | Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology |
| Volume | 28 |
| Issue number | 8 |
| Publication status | Published - Aug 2008 |
Keywords
- High intensity sound
- Loudspeaker
- Low frequency
- Resonance tube