Martorell, 06/05/2016. – What makes a sound a pleasant one? “The right sound mustn’t be excessively loud or stand out among the rest. And the pitch should neither be too high or too low”. This is how Núria Pellisé describes it – she is an engineer in SEAT’s Acoustics department who works eight hours a day analysing all the sounds made by a car to ensure the comfort of its passengers.

The Acoustics department is in charge of studying the sounds heard by a driver and the other passengers when they are in the car: the engine, windscreen wipers, indicator lights and doors, among others. This work is performed to enhance the comfort and quality of the models before they go on sale. For example, Núria points out that the sound made by the door closing is very important because that is one of the first impressions a driver gets when settling into the car. According to her, that sound has to be a “soft click that conveys quality” and must give an impression of a “tight fit”.

It may seem that any decision made within the realm of the senses is quite subjective. However, all measurements are taken using a dummy that is equipped with two microphones with an equalisation that simulates the human ear for standardised recordings. After recording the different sounds, these specialists analyse the various possibilities in a listening room with high definition equipment and select the most appropriate solution that conveys the highest quality.

When asked whether SEAT has any distinct sound, Núria explains that owing to the dynamic nature of the brand, a specific exhaust system was designed for the CUPRA models that gives them a special sporty sound that is distinctly recognisable.

The work they do increases the soundproofing and comfort of every model: “Compared with the previous version, the Leon features a series of additional measures that make the engine seem further removed from the driver”. This is how the sound of a car is created; a carefully chosen composition where nothing is left to chance.