Auralization of Accelerating Passenger Cars Using Spectral Modeling Synthesis
Abstract
:1. Introduction
2. Model Development
2.1. Overview
2.2. Emission Module
2.2.1. Sound of Tires
2.2.2. Driving Dynamics
2.2.3. Sound of Propulsion
2.3. Propagation Filtering
- Propagation delay
- Doppler effect (frequency shift and amplification)
- Convective amplification
- Geometrical spreading
- Ground reflection
- Air absorption
2.3.1. Effects Due to Source Motion and Propagation Delay
2.3.2. Ground Effect
2.3.3. Air Absorption
2.4. Reproduction Rendering
3. Model Parameter Estimation
3.1. Tire Noise
3.2. Propulsion Noise
3.2.1. Resampling
3.2.2. Order Analysis
3.2.3. Noise Analysis
3.2.4. Background Noise Corrections
3.2.5. Backpropagation
4. Conclusions
Supplementary Files
Supplementary File 1Acknowledgments
Author Contributions
Conflicts of Interest
Appendix Code of the Frequency Tracking Algorithm
M = size (q,1) ; |
N = size (q,2) ; |
Q(1 ,:) = q(1 ,:) ; |
for m = 2:M |
for k = 1:N |
kb = max(k−c,1) |
kt = min(k+c,N) |
[max Val, maxIdx] = max(Q(m−1,kb:kt)) |
Q(m,k) = q(m,k) + maxVal; |
B(m,k) = kb + maxVal − 1; |
end |
end |
[~, P(M)] = max(Q(M,:)); |
for m = M:−1:2 |
P(m−1) = B(m,P(m)); |
end |
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Pieren, R.; Bütler, T.; Heutschi, K. Auralization of Accelerating Passenger Cars Using Spectral Modeling Synthesis. Appl. Sci. 2016, 6, 5. https://doi.org/10.3390/app6010005
Pieren R, Bütler T, Heutschi K. Auralization of Accelerating Passenger Cars Using Spectral Modeling Synthesis. Applied Sciences. 2016; 6(1):5. https://doi.org/10.3390/app6010005
Chicago/Turabian StylePieren, Reto, Thomas Bütler, and Kurt Heutschi. 2016. "Auralization of Accelerating Passenger Cars Using Spectral Modeling Synthesis" Applied Sciences 6, no. 1: 5. https://doi.org/10.3390/app6010005