Abstract
Previous research have done on the quiet zones created by multiple control sources and error microphones. But the size of the quiet zones are restricted by calculating ability of DSP as the number of control source increase greatly when a big quiet zone is needed in practice. In this paper a new control strategy is presented using a directional array of loudspeakers as a control unit to create a specific quiet zone. When different units work together, a big quiet zone can be created. Using directional array can greatly decrease the unwanted interference between units, and when the arrangement is optimized, the largest area of quiet zone can be created with the least increase of total power output.
| Original language | English |
|---|---|
| Publication status | Published - 2017 |
| Externally published | Yes |
| Event | 24th International Congress on Sound and Vibration, ICSV 2017 - London, United Kingdom Duration: Jul 23 2017 → Jul 27 2017 |
Conference
| Conference | 24th International Congress on Sound and Vibration, ICSV 2017 |
|---|---|
| Country/Territory | United Kingdom |
| City | London |
| Period | 7/23/17 → 7/27/17 |
ASJC Scopus Subject Areas
- Acoustics and Ultrasonics
Keywords
- Active noise control
- Directional array
- Local control