DeerHunter

Yes, you are correct and I wasn't disputing that. I was, however, disputing your first post where you stated that fake engine noise is transmitted "through the speakers of the sound system".
It's not a minor distinction, even though the end result is ostensibly the same.

m444

From the "The Audi 4.0L V8 TFSI Engine with Twin Turbochargers" Audi self study # 920223, page: Body84

luv2sleep

So what you are saying is that my baby partially fakes it. Mine's a '16 with the Sport pkg. Her fake scream is very convincing and loud.

Glisse

This device and its specific role in the C7 S7/S7 has been discussed many times before. The role is to mask the transition to 4 cylinder mode, which would be felt rather than heard (as obviously the engine is not under load).

It is not to make vroom, vroom noises, and it does not pipe fake engine sounds through the audio system.

Which should be obvious, as the standard exhaust (in conjunction with engine sounds) is very quiet on the S6 - too quiet for many. Audi have never made a V8 that did not sound at least good au naturel, and the EA824 is no exception.

DeerHunter

I'm not sure about this (I'd like to see the discussions you reference). To my understanding, transition to four-cylinder mode, as well as continuous four-cylinder operation, is masked in two ways: Active engine mounts (to minimize transmitted vibration) and active noise-cancellation through the stereo system.

In modern cars (particularly luxury-oriented cars), they use a lot of sound deadening in order to mask sounds we consider unpleasant (like wind noise and tire sizzle/rumble). The unhappy byproduct of this is that we don't hear the sounds we actually like (intake and exhaust roar). Unfortunately, the only way to put some music back into our lives is to fake it to some extent. You can tell that the Soundaktor is involved as the "rumble" increases markedly when you switch "Engine Sound" from Comfort to Sport mode in the MMI.

Audi did err too much on the side of a quiet exhaust on the pre-facelift S6/7 and it was apparently rectified with the Sport Exhaust option later on. That, or the aftermarket beckons.

m444

The 2016 sport mode also has flaps that affect the exhaust flow differently in sport mode vs comfort mode. It looks like all the C7 4.0T exhausts have switchable flaps, but the new C7.5 Sport exhaust seems to be configured differently. The basic C7 pre-face lift system outlined below:

Valgus

It is exceedingly rare, especially with performance vehicles, that a company would design an inferior vehicle to replace an older model. No matter what anyone says, the new model coming soon will look better, drive better, go faster and sound better. It is just the reality of the car business. Audi wants you to buy new cars and think non-stop about how to make them more enticing for us. For buyers of the S6, performance is key. They know that. Wait for the C8

DeerHunter

Have you read any reviews on the new 718 Cayman/Boxster? Great chassis with a huge step-down in the engine department.
Flat-6 >>>>>>> Turbo flat-4

The new car may be faster/torquier, but it doesn't have nearly the same "soul".

djsiry

I've read many reviews of the 718 and few have said the car lost its soul. It's the same old thing when Porsche went from air cooled to water cooled. Everyone freaks out but the car is much better.

With modern engineering eliminating turbo lag, there is no reason that every engine will not have turbos in them eventually to deal with CAFE and deliver drivability with smaller displacement.

Valgus

You see, that's precisely the problem I am talking about. You admit that it is faster and has more torque which are precise, measureable qualities of a vehicle. When it comes to the perceived shortcoming, you bring up "soul". This doesn't exist. If you are talking about sound and vibration, from the previous posts you can see that this can be manufactured.