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3 results for “Acoustic Impedance”
Dízi Fingering Dataset: Acoustic Impedance and Audio Spectra, with Sound Files
<p>This database presents acoustic impedance spectra measured on a G-key Dízi (Chinese transverse flute): a total of 35 fingerings (both standard and alternative fingerings) for 24 semi-chromatic notes ranging from D5 to G7 (i.e. the instrument’s typical playing range), for both with the membrane attached and without. Accompanying each fingering entry is the sound recording and corresponding audio spectra.</p> <p> </p> <p>An interactive graphical version of this database is also presented at <a href="https://acoustics.sutd.edu.sg/dizi-impedance/">https://acoustics.sutd.edu.sg/dizi-impedance/</a> </p> <p> </p> <p>The impedance measurements (using the “<a href="https://apc01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fnewt.phys.unsw.edu.au%2Fjw%2Freprints%2FDickensSmithWolfe.pdf&data=04%7C01%7Cyixian_tan%40sutd.edu.sg%7C7763bf2bc6eb4f9c849908da09080e5d%7C3476b776e9904f72b95062489831623d%7C0%7C0%7C637832227461557470%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=AfSXOQEqxZxbz%2BPJ7ZnbtAuSZn6xF1YBBUmQenjRZmA%3D&reserved=0">three-microphone two-calibration</a>” technique) were conducted at the Acoustics Lab, School of Physics, UNSW, Sydney Australia. The authors are grateful to John Smith and Joe Wolfe for hosting us. The acoustic impedance measurement hardware and software was developed by Paul Dickens and we used a version of the software subsequently modified by Noel Hanna.</p>
Numerical nine-shot seismo records for 1600 acoustic impedance distributions
<p>This dataset contains numerical seismo records for 1600 synthetic acoustic impedance distributions presented in [1]. Forward modeling was performed using grid-characteristic numerical method.</p> <p>There are nine seismo records for each impedance distribution. The records differ in excitation pulse positions. The pulses are located equidistantly on the upper boundary of the domain.</p> <p>Acoustic impedance distributions are in masks/ folder. For example, the file masks/1.npy contains the distribution for the sample number 1. Seismo records are in seismograms/ folder, each file name contains distribution number and pulse location. For example, the file seismograms/1_position_10.npy contains seismo record for the impedance distribution 1 obtained with the pulse center located 10 percent from the left border of the domain.</p> <p>The data is in NumPy native format. Total dataset size is 6.9G after extraction. Archive md5 checksum: dc9f61333f1eef17526831e0c6d9b493</p> <p>[1] Fangshu Yang and Jianwei Ma (2019). Deep-learning inversion: A next-generation seismic velocity model building method. DOI: 10.1190/geo2018-0249.1</p>
Figure files for High-impedance surface acoustic wave resonators
<p>This repository contains .fig (MATLAB) files corresponding to the figures in 'High-impedance surface acoustic wave resonators.' <br> The raw data are available from the corresponding author upon reasonable request.<br> </p>
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