Lets play - Guess the exhaust note on the MP4-12 dev video!!
Discussion
This has probably been posted a few times (search is broken again) but hopefully no one has tried to guess the exhaust notes yet.
http://www.bbc.co.uk/news/uk-15701284
Starts at 0.25.
We have
1) Dull, normal, weak
2) Smooth precise "kanye west" car
3) Extreme rough "dizzee rascal" car
I'm going for
1) Don't care
2) Don't know, FPC V8 or V10?
3) Some sort of V12?
I've just realised I'm not very good at this game.
http://www.bbc.co.uk/news/uk-15701284
Starts at 0.25.
We have
1) Dull, normal, weak
2) Smooth precise "kanye west" car
3) Extreme rough "dizzee rascal" car
I'm going for
1) Don't care
2) Don't know, FPC V8 or V10?
3) Some sort of V12?
I've just realised I'm not very good at this game.
Major Fallout said:
God it makes it all sound so boring!
Why have i got this feeling that the best sounding cars in the world, never had their sound engineered.
Of course they will have had their sound engineered. Sure, there is more finesse and understanding into what goes on today but it's not as simple as just bunging a bit of pipe on the back of a car - for a start, an unsilenced straightpipe might sound amazing on a lot of cars but it's not what the majority of owners would want, even on a supercar. As soon as you start adding silencer sections you have to consider the cubic volume and baffle arrangement in the silencers, or you will just hush the noise up and possibly even end up amplifying undesirable frequencies and noises from the engine.Why have i got this feeling that the best sounding cars in the world, never had their sound engineered.
If you think Ferrari or Lamborghini just threw any old pipe onto their cars you'd be a way off the mark - think of the classic selections for "best sounding cars", all distinctive and obviously crafted sounds.
Mastodon2 said:
Of course they will have had their sound engineered. Sure, there is more finesse and understanding into what goes on today but it's not as simple as just bunging a bit of pipe on the back of a car - for a start, an unsilenced straightpipe might sound amazing on a lot of cars but it's not what the majority of owners would want, even on a supercar. As soon as you start adding silencer sections you have to consider the cubic volume and baffle arrangement in the silencers, or you will just hush the noise up and possibly even end up amplifying undesirable frequencies and noises from the engine.
If you think Ferrari or Lamborghini just threw any old pipe onto their cars you'd be a way off the mark - think of the classic selections for "best sounding cars", all distinctive and obviously crafted sounds.
No sorry, exhausts tuned for performance. Not for sound on my personal favourites. The sound just being a by-product. If you think Ferrari or Lamborghini just threw any old pipe onto their cars you'd be a way off the mark - think of the classic selections for "best sounding cars", all distinctive and obviously crafted sounds.
Major Fallout said:
No sorry, exhausts tuned for performance. Not for sound on my personal favourites. The sound just being a by-product.
So in that case you are either talking about racing cars or street cars with unsilenced exhausts. A great sound indeed, but one that covers up some of the natural characteristics of the engine's output sound, and also not an exhaust that you would find on a road car in standard form. I may be wrong, but I can't think of any cars, in showroom condition at least, that have sold with unsilenced, straight through exhausts.Major Fallout said:
Mastodon2 said:
Of course they will have had their sound engineered. Sure, there is more finesse and understanding into what goes on today but it's not as simple as just bunging a bit of pipe on the back of a car - for a start, an unsilenced straightpipe might sound amazing on a lot of cars but it's not what the majority of owners would want, even on a supercar. As soon as you start adding silencer sections you have to consider the cubic volume and baffle arrangement in the silencers, or you will just hush the noise up and possibly even end up amplifying undesirable frequencies and noises from the engine.
If you think Ferrari or Lamborghini just threw any old pipe onto their cars you'd be a way off the mark - think of the classic selections for "best sounding cars", all distinctive and obviously crafted sounds.
No sorry, exhausts tuned for performance. Not for sound on my personal favourites. The sound just being a by-product. If you think Ferrari or Lamborghini just threw any old pipe onto their cars you'd be a way off the mark - think of the classic selections for "best sounding cars", all distinctive and obviously crafted sounds.
The still born Jaguar X600 went into alot of NVH sound quality depth and studies, cars like the Boxster, SLK, Honda S2000 were all sampled and their orders were analysed and broken down. Orders were identified as being desirable for the target sound quality and then it was our job to find what features contribute to this. Ricardo are leaders amongst consultancies, when it comes to this science (you'll notice in the Mclaren video that they're using Ricardo for this too (sorry, but in this regard FEV and certainly AVL do not come close!)
BMW are very good at their NVH sound quality engineering- the Germans call it 'laufkultur'. Their older naturally aspirated M cars, however, just sounded the way they sounded, as they compromised the torque curve and BMEP levels a bit to attain the right sound quality so didn't bother in the end.
The Koreans and the Japanese for a long time had no idea about NVH sound quality and just aimed to make the car reach a target Db level. NVH sound quality is what seperates an appliance like an every day Toyota or Kia from a premium product. I test drove the latest Dodge Charger with Pentastar V6 recently, it was very impresive in many areas, not least, fuel economy and ride handling compromise and the steering was excellent, but I could tell immediately that the goal was to make the V6 engine merely quiet. When Alfa gets hold of that engine I can guarantee that won't be the case for their product.
Typically intake noise is tailored and tuned rather than exhaust because of strict European drive by regulations.
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