Name
Abstract | ||
|---|---|---|
Multiactuator Panels (MAPs) are flat loudspeakers that can be used to build arrays for Wave Field Synthesis (WFS), al- ternatively to classical dynamic loudspeakers. The sound ra- diation of these loudspeakers is a complex superposition of excited modes that vary strongly with frequency. Therefore, the characteristic MAP spectrum is very irregular and needs to be equalized to obtain a flat, colorless response. In this paper, an efficient digital equalization method is applied suc- cessfully to the problem of spectral equalization of MAPs. It is based on a chain of second-order sections of infinite impulse response parametric filters with very low computa- tional cost. The method compensates for the measured MAP response in order to achieve a desired frequency response. The equalization process has been applied to a large MAP prototype, comprising a large number of exciters within a panel. A dedicated exciter equalization and its consequences on the filtered responses have been addressed. |
Year | Venue | Keywords |
|---|---|---|
2009 | EUSIPCO | iir filters,loudspeakers,maximum likelihood estimation,characteristic map spectrum,classical dynamic loudspeakers,dedicated exciter equalization,digital equalization method,excited modes,filtering equalization,flat colorless response,flat loudspeakers,frequency response,infinite impulse response parametric filters,large multiactuator panels,sound radiation,spectral equalization,wave field synthesis |
Field | DocType | ISBN |
Wave field synthesis,Superposition principle,Frequency response,Equalization (audio),Computer science,Infinite impulse response,Filter (signal processing),Acoustics,Loudspeaker,Exciter | Conference | 978-161-7388-76-7 |
Citations | PageRank | References |
0 | 0.34 | 0 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Basilio Pueo | 1 | 5 | 2.76 |
| Jose Escolano | 2 | 0 | 0.34 |
| Jose J. Lopez | 3 | 32 | 4.51 |
| Germán Ramos | 4 | 22 | 2.85 |