Dataset of impulse responses from variable acoustics room Arni at Aalto Acoustic Labs

<p>A dataset of impulse responses collected in the variable acoustics laboratory Arni at Acoustics Lab of Aalto University, Espoo, Finland.</p> <p>IRs of 5342 configurations of sound absorption in Arni are included in the dataset. Each of them were measured using an omnidirectional sound source and 5 sound receivers. For each configuration, 5 IRs were captured. The total number of measurements in the dataset is 132 037.</p> <p>For more information and the reverberation time values estimated from the IRs, please see the paper &quot;Calibrating the Sabine and Eyring formulas&quot; by Karolina Prawda, Sebastian J. Schlecht, and Vesa V&auml;lim&auml;ki, in The Journal of the Acoustical Society of America</p> <p>The work leading to producing the dataset and related research was supported by the Nordic Sound and Music Computing Network---NordicSMC, NordForsk project number 86892.</p> <p>&nbsp;</p> <p><strong>How to read the files in the dataset:</strong></p> <p>The general style of file naming is:<br> IR_numClosed_NumberOfReflectivePanels_numComb_CombinationNumber_mic_ReceiverNumber_sweep_SweepNumber<br> for example, for 1 reflective panel, combination 87, IR obtained from 3rd out of 5 sweeps recorded by microphone number 2, the filename is:<br> IR_numClosed_1_numComb_87_mic_2_sweep_3.wav</p> <p>The dataset was divided into several files due to its total size. The files included in each .zip file are indicated in its name.</p> <p>If some of the sound files are missing, e.g. for a certain combination and microphone there are 4 IR recordings instead of 5, it means that the sweep was discarded in the pre-processing phase due to non-stationary noise.<br> Read more: Karolina Prawda, Sebastian J. Schlecht, and Vesa V&auml;lim&auml;ki, &quot;Robust selection of clean swept-sine measurements in non-stationary noise&quot;, The Journal of the Acoustical Society of America 151, 2117-2126 (2022), doi: https://doi.org/10.1121/10.0009915</p> <p>The specific combinations with indication whether the panel was in a reflective (represented by figure 0) or an absorptive (represented by figure 1) state are listed in <strong>combinations_setup.csv</strong> file.<br> The first column contains the combination number (0--5341), the first row is the panel number (1--55).</p> <p><strong>Arni_panels_numbers.pdf</strong> contains a diagram showing the panel numbers and locations.</p> <p><strong>Arni_layout.jpg</strong> contains a drawing specifying the positions of source source, sound receivers, and other elements of the interior.</p> <p>&nbsp;</p>