DOI: 10.5281/zenodo.1211614
title: Neeck Validation: Acoustic Measurements And Bem Simulations

description: This repository contains the supporting data for the paper entitled "Acoustic Validation of a BEM-Suitable 3D Mesh Model of KEMAR'', K. Young, G. Kearney, and A. I. Tew, at the 2018 AES International Conference on Spatial Reproduction - Aesthetics and Science, Tokyo. Available at: http://www.aes.org/e-lib/browse.cfm?elib=19662. Please cite both the paper and dataset if used.

Note: the azimuth angle system used in this work increments positively in the left direction, such that 90° is on the left and 270° is on the right. In elevation, -90° is below, +90° is above. 

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The data is organised as follows:

- NEECK_HRIR_measured.sofa<br>
    (SOFA file (SimpleFreeFieldHRIR) containing the 185 acoustically measured HRIRs for the Neck-Extended Easily Computable KEMAR (NEECK))<br>
- NEECK_HRTF_simulated.sofa<br>
    (SOFA file (SimpleFreeFieldTF) containing the 10,205 simulated HRTFs for the Neck-Extended Easily Computable KEMAR (NEECK))<br>
- AdditionalData<br>
    (Zip folder containing data processed during the analysis stages)<br>
    - averageResponse_measured.mat<br>
        (mat file containing the average IR responses, corresponding inverse filters and inverse filter generation parameters)<br>
    - averageResponse_simulated.mat<br>
        (mat file containing the average TF responses in linear scale)<br>
    - measuredData.mat<br>
        (mat file containing the following data:)<br>
        - IRs<br>
            (Measured impulse responses as in SOFA file. Dimensions: M1xRxN1)<br>
        - IRs_DTF<br>
            (Impulse responses after application of average response inverse filter. Dimensions: M1xRxN1)<br>
        - HRTFs<br>
            (HRTF magnitudes in linear scale. Dimensions: M1xRxN1)<br>
        - HRTFs_dB<br>
            (As above in decibel scale. Dimensions: M1xRxN1)<br>
        - DTFs<br>
            (DTF magnitudes in linear scale - after application of average response inverse filter. Dimensions: M1xRxN1)<br>
        - DTFs_dB<br>
            (As above in decibel scale. Dimensions: M1xRxN1)<br>
        - measFs<br>
            (sampling rate of measured responses: Dimensions: 1x1)<br>
        - allSourcePositions_measured<br>
            (measured source positions in spherical coordinates (azimuth, elevation, radius). Units: degrees, degrees, metres. Dimensions: M1x3)<br>
    - simulatedData.mat<br>
        (mat file containing the following data:<br>
        - IRs<br>
            (Impluse responses generated from the simulated HRTF data. Dimensions: M2xRxN2)<br>
        - HRTFs_complex<br>
            (Complex simulated HRTF data. Dimensions: M2xRxN3)<br>
        - HRTFs_mag_dB<br>
            (Magnitudes of simulated HRTF data in decibel scale. Dimensions: M2xRxN3)<br>
        - DTFs_mag_lin<br>
            (Magnitudes of directional transfer function (DTF) data in linear scale. Dimensions: M2xRxN3)<br>
        - DTFs_mag_dB<br>
            (As above in decibel scale. Dimensions: M2xRxN3)<br>
        - simFs<br>
            (sampling rate of generated impulse responses. Dimensions: 1x1)<br>
        - allSourcePositions_simulated<br>
            (simulated source positions in spherical coordinates (azimuth, elevation, radius). units: degrees, degrees, metres. Dimensions: M2x3)<br>
        - frequencies<br>
            (frequencies used in the simulation. Dimensions: N3x1)<br>
    - license.mat<br>
        (mat file containing licensing information)<br>
- License.txt<br>
    (Text file detailing the license under which this data is published.)

For enquiries regarding the data in a different format, please email kaey500@york.ac.uk. <br>
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Data Dimensions:

M1 = number of measured source positions, in this case 185<br>
M2 = number of simulated source positions, in this case 10,205<br>
R = number of channels, in this case 2, where 1 and 2 correspond to left and right respectively<br>
N1 = number of samples in measured impulse responses, in this case 1024<br>
N2 = number of samples in generated impulse responses, in this case (number of samples in HRTF*2)+2 = 400<br>
N3 = number of samples in simulated transfer functions, in this case, the number of frequency points, 199

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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), with no warranty; or the implied warranty of merchantability or fitness for a particular problem.

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Data produced by Kat Young at the Audio Lab, Dept. of Electronic Engineering, University of York. Contact: kaey500@york.ac.uk