Why is special?
Sound produced by vibration speaker highly depends of underlying surface. Particularly important are the type of surface and its size. When used on different surface types (glass, plastics, wood, etc.) different quality of sound is produced. The size of the surface affects the intensity of the sound (larger surface helps producing louder is the sound).
Vibration speaker produces equal sound in all directions.. From the charts below we can notice that in the 10 kHz range the sound field of Party Dwarf is much larger and more equally distributed around the center (right chart) than the one of the conventional speaker (left chart):
The traditional speakers at 10 kHz.
The vibration speakers at 10 kHz.
 |
 |
|
|---|---|---|
| Sound media | Paper bas in box | Any flat solid surface |
| Quality | Always the same | Different surface creates different sound quality |
| Attenuation | High attenuation in short distance | Very low attenuation in long distance |
| Direction | Dramatic direction | 360° omnidirectional sound |
| Power | Low input, low output | Low input, high output |
| Size | Bulky, impractical | Tiny, portable |
| Appearance | Conventional style | Futuristic style |
Comparison of traditional speaker and Party Dwarf.
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