i am rakesh kumar rath, a btech 4th year student wanted to get a seminar report on "noise control in automobile vehicles" ..
i want to get a seminar report on the topic "noise control in automobile vehicles"
A compact tutorial of ANC techniques was presented with a review of its application in reducing unwanted noise within automobiles. Some recent developments have demonstrated significant improvements in noise reduction levels, as well as cost and complexity of implementation. Although the aforementioned techniques may individually focus on a particular noise field (eg only road noise, motor noise only), it is demonstrated through research and commercial products that a combination of these strategies can provide significant benefits in realistic conditions.
There are different types of noise sources in cars such as the engine, road tire and wind noise, each with its own distinct acoustic properties. The vehicle compartment can be considered a very small room and depending on the frequency, the acoustics inside the car exhibit completely different physical behaviors. This section reviews typical noise source attributes and noise models, which effectively describe noise fields within automobiles.