Continuous Measurement of Spatial Room Impulse Responses on a Sphere at Discrete Elevations

Hahn N, Spors S. Continuous Measurement of Spatial Room Impulse Responses on a Sphere at Discrete Elevations. In: AES Convention 144. Audio Engineering Society; 2018. Paper 9938. Available from: https://aes.org/publications/elibrary-page/?id=19455

@inproceedings{Hahn2018_19455,
  author = {Hahn, Nara and Spors, Sascha},
  title = {{Continuous Measurement of Spatial Room Impulse Responses on a Sphere at Discrete Elevations}},
  booktitle = {AES Convention 144},
  note = {Paper 9938},
  year = {2018},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=19455}
}

TY  - CPAPER
TI  - Continuous Measurement of Spatial Room Impulse Responses on a Sphere at Discrete Elevations
AU  - Hahn, Nara
AU  - Spors, Sascha
T2  - AES Convention 144
M1  - Paper 9938
PY  - 2018
DA  - 2018/05/06
UR  - https://aes.org/publications/elibrary-page/?id=19455
PB  - Audio Engineering Society
LA  - en
AB  - In order to analyze a sound field with a high spatial resolution, a large number of measurements are required. A recently proposed continuous measurement technique is suited for this purpose, where the impulse response measurement is performed by using a moving microphone. In this paper it is applied for the measurement of spatial room impulse responses on a spherical surface. The microphone captures the sound field on the sphere at discrete elevations while the system is periodically excited by the so-called perfect sequence. The captured signal is considered as a spatio-temporal sampling of the sound field, and the impulse responses are obtained by a spatial interpolation in the spherical harmonics domain. The elevation angles and the speed of the microphone are chosen is such a way that the spatial sampling points constitute a Gaussian sampling grid.
ER  -