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Author: JensAhrens

DirPat_loudspeaker_cube/README.md

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+The data are the measurements of the 4 loudspeaker drivers of the IEM Loudspeaker Cube in the [DirPat database](https://opendata.iem.at/projects/dirpat/). All directivity models are far-field models based on third-octave smoothed magnitude data like in the Common Loudspeaker Format. The details are described in 
+
+> J. Ahrens and S. Bilbao, “Interpolation and Range Extrapolation of Sound Source Directivity Based on a Spherical Wave Propagation Model,” in Proc. of IEEE ICASSP, Barcelona, Spain, May 2020
+
+and particularly in
+
+> J. Ahrens and S. Bilbao, “Computation of Spherical Harmonics Based Sound Source Directivity Models from Sparse Measurement Data,” Forum Acusticum, Lyon, France, May 2020.
+
+
+
+Example balloon plots: 
+
+`irs_DirPat_loudspeaker_cube_1_N6.mat`
+
+![irs_DirPat_loudspeaker_cube_1_N6](irs_DirPat_loudspeaker_cube_1_N6.png "irs_DirPat_loudspeaker_cube_1_N6")
+
+`irs_DirPat_loudspeaker_cube_2_N6.mat`
+
+![irs_DirPat_loudspeaker_cube_2_N6](irs_DirPat_loudspeaker_cube_2_N6.png "irs_DirPat_loudspeaker_cube_2_N6")
+
+`irs_DirPat_loudspeaker_cube_3_N6.mat`
+
+![irs_DirPat_loudspeaker_cube_3_N6](irs_DirPat_loudspeaker_cube_3_N6.png "irs_DirPat_loudspeaker_cube_3_N6")
+
+`irs_DirPat_loudspeaker_cube_4_N6.mat`
+
+![irs_DirPat_loudspeaker_cube_4_N6](irs_DirPat_loudspeaker_cube_4_N6.png "irs_DirPat_loudspeaker_cube_4_N6")

DirPat_loudspeaker_cube/irs_DirPat_loudspeaker_cube_1_N6.mat

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+The data are the singing voice measurements from the [DirPat database](https://opendata.iem.at/projects/dirpat/), specifically from the files
+
+* `IR_a_long_sweep.mat`
+
+* `IR_a_closed_sweep.mat`
+
+* `IR_a_open_sweep.mat`
+
+* `IR_a_wide_sweep.mat`.
+
+The calibration data in file `cal64.mat` were applied to all datasets. All directivity models are far-field models referenced to the direction straight ahead and computed as described in 
+
+> J. Ahrens and S. Bilbao, “Interpolation and Range Extrapolation of Sound Source Directivity Based on a Spherical Wave Propagation Model,” in Proc. of IEEE ICASSP, Barcelona, Spain, May 2020
+
+and
+
+> J. Ahrens and S. Bilbao, “Computation of Spherical Harmonics Based Sound Source Directivity Models from Sparse Measurement Data,” Forum Acusticum, Lyon, France, May 2020.
+
+
+
+Example balloon plots: 
+
+`irs_DirPat_a_closed_sweep_N9_non-reg.mat`
+
+![irs_DirPat_a_closed_sweep_N9_non-reg](irs_DirPat_a_closed_sweep_N9_non-reg.png "irs_DirPat_a_closed_sweep_N9_non-reg")
+
+`irs_DirPat_a_closed_sweep_N9_reg.mat` 
+
+![irs_DirPat_a_closed_sweep_N9_reg](irs_DirPat_a_closed_sweep_N9_reg.png "irs_DirPat_a_closed_sweep_N9_reg")
+
+`irs_DirPat_a_long_sweep_N9_non-reg.mat`
+
+![irs_DirPat_a_long_sweep_N9_non-reg](irs_DirPat_a_long_sweep_N9_non-reg.png "irs_DirPat_a_long_sweep_N9_non-reg")
+
+`irs_DirPat_a_long_sweep_N9_reg.mat` 
+
+![irs_DirPat_a_long_sweep_N9_reg](irs_DirPat_a_long_sweep_N9_reg.png "irs_DirPat_a_long_sweep_N9_reg")
+
+`irs_DirPat_a_open_sweep_N9_non-reg.mat`
+
+![irs_DirPat_a_open_sweep_N9_non-reg](irs_DirPat_a_open_sweep_N9_non-reg.png "irs_DirPat_a_open_sweep_N9_non-reg")
+
+`irs_DirPat_a_open_sweep_N9_reg.mat`
+
+![irs_DirPat_a_open_sweep_N9_reg](irs_DirPat_a_open_sweep_N9_reg.png "irs_DirPat_a_open_sweep_N9_reg")
+
+`irs_DirPat_a_wide_sweep_N9_non-reg.mat`
+
+![irs_DirPat_a_wide_sweep_N9_non-reg](irs_DirPat_a_wide_sweep_N9_non-reg.png "irs_DirPat_a_wide_sweep_N9_non-reg")
+
+`irs_DirPat_a_wide_sweep_N9_reg.mat`
+
+![irs_DirPat_a_wide_sweep_N9_reg](irs_DirPat_a_wide_sweep_N9_reg.png "irs_DirPat_a_wide_sweep_N9_reg")
+