car crash sound

car crash sound

Car Crash Sound

Car Crash Sounds is the best Car Crash Sounds app of 2015.There are many car crash sounds for you to play today.Car crash sounds will make you laugh.Play high quality Car Crash Accident sounds today.With Car Crash Sounds you can fake the sound of a Car Accident nearby, you can use this to prank or scare people.Seeing the reactions of those you have pranked with Car Accident Sounds will make you laugh.Remember, always fasten up before setting off in the car. Read more
car crash sound 1

Car Crash Sound

Car Crash Sounds is the best Car Crash Sounds app of 2015.There are many car crash sounds for you to play today.Car crash sounds will make you laugh.Play high quality Car Crash Accident sounds today.With Car Crash Sounds you can fake the sound of a Car Accident nearby, you can use this to prank or scare people.Seeing the reactions of those you have pranked with Car Accident Sounds will make you laugh.Remember, always fasten up before setting off in the car.
car crash sound 2

Car Crash Sound

A frequency spectrum known in physics as pink noise is ideally suited for this purpose. It sounds like a bit like diffuse traffic noise, the breaking of waves or a waterfall. “This finding was the breakthrough,” says Bullinger. “100 decibels was too much. But around 80 decibels, as now deployed by PRE-SAFE Sound®, was perfect. This is equivalent to the level of noise at the side of a busy road.” At the end of 2011 human trials of the pink noise method proved that the concept worked – a major milestone had been reached.   A plea to the ear to protect itself The path from here to series production was by no means straightforward, but it is comparatively easy to explain. The objective was then to integrate the concept into the vehicle. For the first time, PRE-SAFE® is accessing the car’s multimedia system, which is installed with a special soundchip to generate the pink noise. When PRE-SAFE® detects that an accident is imminent, a pink noise signal is played through the sound system at a volume of around 80 decibels. The ear is then primed for the high level of sound that typically accompanies a collision. Wilfried Bullinger works on passenger safety, PRE-SAFE®, and post-crash safety at Mercedes-Benz.
car crash sound 3

Car Crash Sound

It takes just a split second for a car accident to completely change a person’s life. Mercedes-Benz PRE-SAFE® can help to minimize the damage. Once the vehicle’s sensors have detected that a collision is unavoidable, a comprehensive system of safety features are activated within the short time that remains before the impact occurs. It takes just 150 milliseconds to deploy the reversible seat belt tensioners, for example. To put that into context, the duration of a human blink is 100 milliseconds.   “PRE-SAFE® was first introduced at Mercedes-Benz in 2002,” says Rodolfo Schöneburg, Head of Vehicle Safety, Durability and Corrosion Protection at Mercedes-Benz Cars. “It kicks in before the collision occurs, preparing the vehicle and its occupants. PRE-SAFE is therefore one of our systems that is based on what actually happens in real-life accidents and helps to save people’s lives.”   Harnessing the stapedius muscle reflex in the ear Mercedes-Benz is now extending its PRE-SAFE® technology with PRE-SAFE® Sound. It will be debuted in the new E-Class, model series 213, available from 2016. The system is the first to harness a natural reflex to condition the ear – when a collision is imminent – for the loud noise that is anticipated from the impact. If an impending collision is detected that would be expected to produce a loud crash, the vehicle’s sound system plays a short interference signal. This causes the stapedius muscle in the ears to contract, which for a split second changes the link between the eardrum and the inner ear and so better protects it against high acoustic pressures. Most importantly, the reflex reduces the damage to hearing. Rodolfo Schöneburg, Head of Vehicle Safety, Durability and Corrosion Protection at Mercedes-Benz Cars.
car crash sound 4

Car Crash Sound

It takes just a split second for a car accident to completely change a person’s life. Mercedes-Benz PRE-SAFE® can help to minimize the damage. Once the vehicle’s sensors have detected that a collision is unavoidable, a comprehensive system of safety features are activated within the short time that remains before the impact occurs. It takes just 150 milliseconds to deploy the reversible seat belt tensioners, for example. To put that into context, the duration of a human blink is 100 milliseconds.   “PRE-SAFE® was first introduced at Mercedes-Benz in 2002,” says Rodolfo Schöneburg, Head of Vehicle Safety, Durability and Corrosion Protection at Mercedes-Benz Cars. “It kicks in before the collision occurs, preparing the vehicle and its occupants. PRE-SAFE is therefore one of our systems that is based on what actually happens in real-life accidents and helps to save people’s lives.”   Harnessing the stapedius muscle reflex in the ear Mercedes-Benz is now extending its PRE-SAFE® technology with PRE-SAFE® Sound. It will be debuted in the new E-Class, model series 213, available from 2016. The system is the first to harness a natural reflex to condition the ear – when a collision is imminent – for the loud noise that is anticipated from the impact. If an impending collision is detected that would be expected to produce a loud crash, the vehicle’s sound system plays a short interference signal. This causes the stapedius muscle in the ears to contract, which for a split second changes the link between the eardrum and the inner ear and so better protects it against high acoustic pressures. Most importantly, the reflex reduces the damage to hearing.
car crash sound 5

Car Crash Sound

Mercedes-Benz is now extending its PRE-SAFE® technology with PRE-SAFE® Sound. It will be debuted in the new E-Class, model series 213, available from 2016. The system is the first to harness a natural reflex to condition the ear – when a collision is imminent – for the loud noise that is anticipated from the impact. If an impending collision is detected that would be expected to produce a loud crash, the vehicle’s sound system plays a short interference signal. This causes the stapedius muscle in the ears to contract, which for a split second changes the link between the eardrum and the inner ear and so better protects it against high acoustic pressures. Most importantly, the reflex reduces the damage to hearing.
car crash sound 6

Car Crash Sound

That may sound simple enough, but as is so often the case with advanced technology, there is a lot more to it than meets the eye. “People have long been aware of the stapedius reflex and its protective effect,” says Wilfried Bullinger, who works in Mercedes-Benz Cars development on innovative occupant protection systems. “To make sure you trigger the reflex, however, you normally need high sound pressures, typically around 100 decibels. This would be like listening to a trumpet playing from around one metre away. But this volume would definitely be too much for use in a car.” Then the experts discovered a way of tricking the body. ‘Pink sound’ on all frequencies The triggering of the stapedius reflex is contingent not only on how loud the noise is, but also on the spectral composition of the signal that is used. An individual tone carries the required energy only on a single frequency, meaning that this frequency has to be transmitted to the ear at a very high volume. However, if this energy is spread out across as many tones, i.e. frequencies, as possible, it can be transmitted at a much lower volume.
car crash sound 7

Car Crash Sound

A frequency spectrum known in physics as pink noise is ideally suited for this purpose. It sounds like a bit like diffuse traffic noise, the breaking of waves or a waterfall. “This finding was the breakthrough,” says Bullinger. “100 decibels was too much. But around 80 decibels, as now deployed by PRE-SAFE Sound®, was perfect. This is equivalent to the level of noise at the side of a busy road.” At the end of 2011 human trials of the pink noise method proved that the concept worked – a major milestone had been reached.   A plea to the ear to protect itself The path from here to series production was by no means straightforward, but it is comparatively easy to explain. The objective was then to integrate the concept into the vehicle. For the first time, PRE-SAFE® is accessing the car’s multimedia system, which is installed with a special soundchip to generate the pink noise. When PRE-SAFE® detects that an accident is imminent, a pink noise signal is played through the sound system at a volume of around 80 decibels. The ear is then primed for the high level of sound that typically accompanies a collision.
car crash sound 8

That may sound simple enough, but as is so often the case with advanced technology, there is a lot more to it than meets the eye. “People have long been aware of the stapedius reflex and its protective effect,” says Wilfried Bullinger, who works in Mercedes-Benz Cars development on innovative occupant protection systems. “To make sure you trigger the reflex, however, you normally need high sound pressures, typically around 100 decibels. This would be like listening to a trumpet playing from around one metre away. But this volume would definitely be too much for use in a car.” Then the experts discovered a way of tricking the body.

Published on Jul 25, 2017 | Under Car | By michael ellis
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