On Spatial-Aliasing-Free Sound Field Reproduction Using Finite Length Line Source Arrays

Schultz F, Rettberg T, Spors S. On Spatial-Aliasing-Free Sound Field Reproduction Using Finite Length Line Source Arrays. In: AES Convention 137. Audio Engineering Society; 2014. Paper 9098. Available from: https://aes.org/publications/elibrary-page/?id=17421

@inproceedings{Schultz2014_17421,
  author = {Schultz, Frank and Rettberg, Till and Spors, Sascha},
  title = {{On Spatial-Aliasing-Free Sound Field Reproduction Using Finite Length Line Source Arrays}},
  booktitle = {AES Convention 137},
  note = {Paper 9098},
  year = {2014},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=17421}
}

TY  - CPAPER
TI  - On Spatial-Aliasing-Free Sound Field Reproduction Using Finite Length Line Source Arrays
AU  - Schultz, Frank
AU  - Rettberg, Till
AU  - Spors, Sascha
T2  - AES Convention 137
M1  - Paper 9098
PY  - 2014
DA  - 2014/10/06
UR  - https://aes.org/publications/elibrary-page/?id=17421
PB  - Audio Engineering Society
LA  - en
AB  - Concert sound reinforcement systems aim at the reproduction of homogeneous sound fields over extended audiences for the whole audio bandwidth. For the last two decades this has been mostly approached by using so called line source arrays for which Wavefront Sculpture Technology (WST) was introduced in the literature. The paper utilizes a signal processing model developed for sound field synthesis in order to analyze and expand WST criteria for straight arrays. Starting with the driving function for an infinite and continuous linear array, spatial truncation and discretization are subsequently taken into account. The role of the involved loudspeakers as a spatial lowpass filter is stressed, which can reduce undesired spatial aliasing contributions. The paper aims to give a better insight on how to interpret the synthesized sound fields.
ER  -