SlotForum banner
1 - 16 of 16 Posts

·
Registered
Joined
·
715 Posts
Discussion Starter · #1 ·
Hey,

Do you think they will ever get some digitized sound coming from under the hood?

Would that make the experience any more realistic?

I'd love to hear an F1 zipping by or the GT engine rumble.

-Maltese
 

·
Gary Skipp
Joined
·
6,503 Posts
If the noise was configured to the cars performance that would be good. For instance, acceleration, flat out, braking (could result in wheels squeal) and so on.

The old mega sound was pathetic, so I don't think a half-arsed attempt would be sucessful.
 

·
Registered
Joined
·
4,634 Posts
this idea was kicked about before, the 2 main problems I recall being mentioned were:

1: the speaker to generate the sound would have to be small, so it would not be able to generate the low frequencies of real engines (cos they have to fit in the car)

2: gear changes would be difficult cos home and most club tracks are a lot smaller than real tracks, and have sharper bends - so there would not be the time to go thru all the gears, or it would just sound wierd with too many changes

Personally I quite like the sound of those little mabuchis and the gears meshing away
 

·
Registered
Joined
·
168 Posts
I'm not so sure accurate sound would be a good thing even if were possible, esp. in a confined space. Most people seem to appreciate cars that are relatively smooth and quiet. That said however, I have a few Fly cars that are well-broken in and their gear whine sounds remarkably like downshifting and accelerating out of corners. On the other hand, I have a Spirit 512, that, although it is comparable in performance to the Flys, sounds like a diesel truck. I keep hoping the gears will lap in and quiet down, but so far no luck.

mp
 

·
Registered
Joined
·
1,889 Posts
A good compromise IMHO is the one used at Pendle's smaller track (the one near the shop). Everytime a car triggers it's timing sensor, a VROOOM noie is heard form the PC speakers. Obviously, the wave file should be able to represent different engines


Mark.
 

·
Registered
Joined
·
265 Posts
I have daydreamed of a system with speakers every two feet or so all the way around the table bottom. A different sound could be assigned each car and , with sensors every two feet, the sound could be "carried" with the car around the track. As a computer driven system the sound could pitch up and down with speed, and tire noise could be timed to the brakes. Of course a main volume control would be present as well as a power switch. The key is being able to track the cars and monitor their speed and the driver's inputs. Can't have a bunch of dead slots. Perhaps those Track-Mate light sensors coupled with a controller running through a processor to the computer? Pricey prototype but maybe worth pursuing? Roaring motors add a ton to the atmosphere of intense competition.

Dreaming in Livonia
 

·
Registered
Joined
·
715 Posts
Discussion Starter · #8 ·
OOhhh!! Harry, that sounds like one heck of an idea, mate!!

Oh no. I'll be awake thinking of that one. With the Wave files already available for PC...like in the EA Sports Race sims and mods...it may be possible!!

-Maltese
 

·
Scott Brownlee
Joined
·
4,275 Posts
Apologies if previously mentioned, but I think Lotus developed an in-car system (1:1 scale) that could play any engine sound to the interior.

This was an unexpected spin-off of a noise reduction system they were working on. It used the positive-negative cancellation effect of sound waves and the idea was to "play" sound that was the negative of the sounds inside the cabin, thereby cutting noise. Trouble was, I gather, talking was impossible.

However, the system could also play engine noises linked to the real car. So, it could be a Citroen Saxo sounding - to those inside at least - like a Viper. I think it would have been a big seller to the car mod'ing crowd since they already spend thousands on multiple sub woofers.

Scott
 

·
Registered
Joined
·
2,457 Posts
I dunno about this. I love being in a completely silent room whenan important race is being held. All you can hear is zipping motors and the odd clatter.

I love hearing engine sounds, but I don't think they will ever be realistic enough to be any good.

Lotus

PS. It wasn't me who created that sound system, it was the car company.

BTW, before Fergy gets on it. The above mentioned phonomena is called wave superposition. It works on the principle that waves look like sine waves. When you put two sine waves together at any point, you must add up the two waves to make the wave that you hear. So if two speakers were working in complete harmony, the sound would be twice as loud as if just one speaker was working. In reality, they are always just a bit out, so the volume (amplitude) is increased but not doubled. In theory (has only been truly done several times) you can position the speakers so that at the point of the listener, the waves are in complete anti-phase and the sounds cancel each other out. This creates perfect silence. Turn off one speaker and it would come back again... scary...

Lotus (again...)
 

·
Registered
Joined
·
1,889 Posts
I remember that Lotus idea on Tomorrow's World. It stemmed from the noise cancelling ideas they had. Mind you. I'd taped a big V8 launching itself and I played it through my cassette deck in the car with the doors wide open and full volume whilst parked outside my house. There were some ppl down the street who actually looked round. RESULT!!


As discussed in one of the other threads about 1/32 car engine noise. The time intervals are too short; a straight is covered in say 1.5 seconds. Try going up 3 gears, braking and going down 3 gears in a REAL car in that time. Not going to happen is it?

Mark.
 

·
Brian Ferguson
Joined
·
3,652 Posts
QUOTE BTW, before Fergy gets on it. The above mentioned phonomena is called wave superposition

at Lotus. Yes, I know about the "theory". Works best if you have just one ear! Neat concept though!
 

·
Registered
Joined
·
420 Posts
QUOTE (Difflock @ 10 Apr 2004, 22:44)As discussed in one of the other threads about 1/32 car engine noise. The time intervals are too short; a straight is covered in say 1.5 seconds. Try going up 3 gears, braking and going down 3 gears in a REAL car in that time. Not going to happen is it?

Mark.
There is only one solution to this problem.... we need SLOWER engines - and more slippery tyres etc...


//peter
 

·
John Roche
Joined
·
4,201 Posts
Maxi-Models sell a CD of V8 sounds from the Can Am era. It came with their first McLaren but Is also available seperately.



John
 
1 - 16 of 16 Posts
Top