5. General conclusion
Controlling noise from internal combustion engines is one of the most difficult tasks for automotive engineers, as the sources of noise are numerous and the phenomena complex. The work presented in this article gives an overview of the different types of noise to be dealt with and the associated methodologies (table 1 ). Over and above the methodologies and technical solutions specific to each noise, it is very important for engine acousticians to adopt a global and homogeneous approach to all the noises an engine can generate. After all, it only takes one little noise to spoil all the efforts made on the others.
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Bibliography
Regulations
Regulation (EU) No 540/2014 of the European Parliament and of the Council of April 16, 2014 relating to the noise level of motor vehicles and replacement silencer systems, and amending Directive 2007/46/EC and repealing Directive 70/157/EEC.
Directive 2007/46/EC of the European Parliament and of the Council of September 5, 2007 establishing a framework for the approval of motor vehicles and their trailers,...
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