992 Sound Symposer
Three Wheelin'
Joined: Feb 2012
Posts: 1,306
Likes: 848
https://rennlist.com/forums/992/1166885-992-sound-symposer.html#post16189418
https://rennlist.com/forums/992/1166885-992-sound-symposer-2.html#post16440559
Last edited by PSPorsche; Jan 20, 2025 at 09:05 PM.
Drifting
Joined: Feb 2018
Posts: 2,845
Likes: 2,753
Like here, people debate whether or not to disable it.
Last edited by ldamelio; Jan 21, 2025 at 09:32 AM.
Rennlist Member
Joined: Aug 2023
Posts: 1,623
Likes: 1,526
From: Ohio
718 Soundaktor is not electronically generated sound per se. It's essentially a diaphragm against the rear firewall. Same principle as the 992 sound sumposer that's being spoken about in this thread, just different details. Neither is fake "vroom vroom' noise ala BMW, Ford, EVs including Taycan, etc.
Like here, people debate whether or not to disable it.
Like here, people debate whether or not to disable it.
Track Day
Joined: Feb 2025
Posts: 19
Likes: 20
2023 Carrera T 100% has fake engine noise through the rear speakers, which I believe may be in addition to the sound symposer. I recently replaced the amp and all speakers in my 23 Carrera T, when I got the car back the engine sounded totally different like when I pulled the fuse out of the sound aktor in my 718 cayman. The shop that did the stereo work told me the rear speakers are wired to the stereo and a system that creates fake engine noise. They disconnected the fake engine noise, but could reconnect it if I prefer.
I was always suspicious that the car used fake engine noise because the tone of the engine sounded totally different inside and outside the cabin. When the fake engine noise was turned on, the engine sound filled up the entire cabin, sounded fuller, and as the engine rpms increased the tone of the engine noise became much more of a production, also with the fake engine noise you could not hear the whizzing of the turbos. With the fake engine noise turned off, the car sounds like a traditional Porsche engine, with the sound comes from the back of the car, and unfortunately you can hear the high pitch of the turbos doing their thing.
I am ashamed to admit that I kind of liked the fake engine noise. Ignorance was bliss. It was way better than on the cayman because there was no drone at highway speed and the tone was a bit more exotic. Now I need to decide whether to turn it back on, upgrade the exhaust for real engine noise, or leave it as is.
i have no idea if the fake engine noise in my Carrera T is called sound aktor, and I do not know if this is unique to the T or if it is on other models, years, or paired with certain options etc. If the engine sounds like a different animal inside the cabin from outside, that may be an indication there is fake engine noise.
I was always suspicious that the car used fake engine noise because the tone of the engine sounded totally different inside and outside the cabin. When the fake engine noise was turned on, the engine sound filled up the entire cabin, sounded fuller, and as the engine rpms increased the tone of the engine noise became much more of a production, also with the fake engine noise you could not hear the whizzing of the turbos. With the fake engine noise turned off, the car sounds like a traditional Porsche engine, with the sound comes from the back of the car, and unfortunately you can hear the high pitch of the turbos doing their thing.
I am ashamed to admit that I kind of liked the fake engine noise. Ignorance was bliss. It was way better than on the cayman because there was no drone at highway speed and the tone was a bit more exotic. Now I need to decide whether to turn it back on, upgrade the exhaust for real engine noise, or leave it as is.
i have no idea if the fake engine noise in my Carrera T is called sound aktor, and I do not know if this is unique to the T or if it is on other models, years, or paired with certain options etc. If the engine sounds like a different animal inside the cabin from outside, that may be an indication there is fake engine noise.
Rennlist Member
Joined: Aug 2023
Posts: 1,623
Likes: 1,526
From: Ohio
2023 Carrera T 100% has fake engine noise through the rear speakers, which I believe may be in addition to the sound symposer. I recently replaced the amp and all speakers in my 23 Carrera T, when I got the car back the engine sounded totally different like when I pulled the fuse out of the sound aktor in my 718 cayman. The shop that did the stereo work told me the rear speakers are wired to the stereo and a system that creates fake engine noise. They disconnected the fake engine noise, but could reconnect it if I prefer.
I was always suspicious that the car used fake engine noise because the tone of the engine sounded totally different inside and outside the cabin. When the fake engine noise was turned on, the engine sound filled up the entire cabin, sounded fuller, and as the engine rpms increased the tone of the engine noise became much more of a production, also with the fake engine noise you could not hear the whizzing of the turbos. With the fake engine noise turned off, the car sounds like a traditional Porsche engine, with the sound comes from the back of the car, and unfortunately you can hear the high pitch of the turbos doing their thing.
I am ashamed to admit that I kind of liked the fake engine noise. Ignorance was bliss. It was way better than on the cayman because there was no drone at highway speed and the tone was a bit more exotic. Now I need to decide whether to turn it back on, upgrade the exhaust for real engine noise, or leave it as is.
i have no idea if the fake engine noise in my Carrera T is called sound aktor, and I do not know if this is unique to the T or if it is on other models, years, or paired with certain options etc. If the engine sounds like a different animal inside the cabin from outside, that may be an indication there is fake engine noise.
I was always suspicious that the car used fake engine noise because the tone of the engine sounded totally different inside and outside the cabin. When the fake engine noise was turned on, the engine sound filled up the entire cabin, sounded fuller, and as the engine rpms increased the tone of the engine noise became much more of a production, also with the fake engine noise you could not hear the whizzing of the turbos. With the fake engine noise turned off, the car sounds like a traditional Porsche engine, with the sound comes from the back of the car, and unfortunately you can hear the high pitch of the turbos doing their thing.
I am ashamed to admit that I kind of liked the fake engine noise. Ignorance was bliss. It was way better than on the cayman because there was no drone at highway speed and the tone was a bit more exotic. Now I need to decide whether to turn it back on, upgrade the exhaust for real engine noise, or leave it as is.
i have no idea if the fake engine noise in my Carrera T is called sound aktor, and I do not know if this is unique to the T or if it is on other models, years, or paired with certain options etc. If the engine sounds like a different animal inside the cabin from outside, that may be an indication there is fake engine noise.
Last edited by Snareman; Mar 19, 2025 at 10:53 AM.
Track Day
Joined: Feb 2025
Posts: 19
Likes: 20
The problem with the fake engine noise as I see it, and BMW does a version of the same thing is that it was essentially all in my head. I was looking at people that I was driving past thinking they are hearing what I'm hearing and thinking that's right. You hear my amazing engine. Turns out it was all a figment of my imagination and they were just hearing a Tesla driving by.. it's at least a little better with the idea of the sound symposer as opposed to just fake engine noise through the speakers but I still just assume here whatever is coming out of the engine itself with no extra bonus fakenesd
I could almost make a case for fake engine noise in a bmw. They are well insulated luxury vehicles, so its either fake engine noise or no engine noise. I suspect consumers will be unhappy if the car is less well insulated and picks up lots of road noise, but at the same time they will complain if the m engine they paid a premium for cannot be heard inside the cabin.
In a less insulated Carrera T, where you can hear the engine, you dont really need fake engine noise unless you are trying to mask the sound of the engine.
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Rennlist Member
Joined: Aug 2023
Posts: 1,623
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From: Ohio
lol. For sure.
I could almost make a case for fake engine noise in a bmw. They are well insulated luxury vehicles, so its either fake engine noise or no engine noise. I suspect consumers will be unhappy if the car is less well insulated and picks up lots of road noise, but at the same time they will complain if the m engine they paid a premium for cannot be heard inside the cabin.
In a less insulated Carrera T, where you can hear the engine, you dont really need fake engine noise unless you are trying to mask the sound of the engine.
I could almost make a case for fake engine noise in a bmw. They are well insulated luxury vehicles, so its either fake engine noise or no engine noise. I suspect consumers will be unhappy if the car is less well insulated and picks up lots of road noise, but at the same time they will complain if the m engine they paid a premium for cannot be heard inside the cabin.
In a less insulated Carrera T, where you can hear the engine, you dont really need fake engine noise unless you are trying to mask the sound of the engine.
Racer
Joined: Dec 2019
Posts: 400
Likes: 247
From: Maine
Flat 6 sells a block off kit, the sound isn't fake, it just lets engine into the cabin via a tube. There are tubes in the engine bay coming from the intake to the interiorthat you can block off. The 718 Soundaktor, which I disabled on ours, basically takes the engine vibrations and amplifies them so in a way it is fake noise but it isn't coming through the speakers. From reading all these threads I don't believe the 992 has noise coming through the speakers. I certainly don't notice it on my T, the engine noise doesn't increase when I increase the music volume.
Last edited by dg108; Mar 19, 2025 at 06:02 PM. Reason: add video
Rennlist Member
Joined: Aug 2023
Posts: 1,623
Likes: 1,526
From: Ohio
Flat 6 sells a block off kit, the sound isn't fake, it just lets engine into the cabin via a tube. There are 2 foam circles in the engine bay that you can block off. The 718 Soundaktor, which I disabled on ours, basically takes the engine vibrations and amplifies them so in a way it is fake noise but it isn't coming through the speakers. From reading all these threads I don't believe the 992 has noise coming through the speakers. I certainly don't notice it on my T, the engine noise doesn't increase when I increase the music volume.
Burning Brakes
Joined: Jul 2007
Posts: 1,033
Likes: 723
From: MidWest
2023 Carrera T 100% has fake engine noise through the rear speakers, which I believe may be in addition to the sound symposer. I recently replaced the amp and all speakers in my 23 Carrera T, when I got the car back the engine sounded totally different like when I pulled the fuse out of the sound aktor in my 718 cayman. The shop that did the stereo work told me the rear speakers are wired to the stereo and a system that creates fake engine noise. They disconnected the fake engine noise, but could reconnect it if I prefer.
I was always suspicious that the car used fake engine noise because the tone of the engine sounded totally different inside and outside the cabin. When the fake engine noise was turned on, the engine sound filled up the entire cabin, sounded fuller, and as the engine rpms increased the tone of the engine noise became much more of a production, also with the fake engine noise you could not hear the whizzing of the turbos. With the fake engine noise turned off, the car sounds like a traditional Porsche engine, with the sound comes from the back of the car, and unfortunately you can hear the high pitch of the turbos doing their thing.
I am ashamed to admit that I kind of liked the fake engine noise. Ignorance was bliss. It was way better than on the cayman because there was no drone at highway speed and the tone was a bit more exotic. Now I need to decide whether to turn it back on, upgrade the exhaust for real engine noise, or leave it as is.
i have no idea if the fake engine noise in my Carrera T is called sound aktor, and I do not know if this is unique to the T or if it is on other models, years, or paired with certain options etc. If the engine sounds like a different animal inside the cabin from outside, that may be an indication there is fake engine noise.
I was always suspicious that the car used fake engine noise because the tone of the engine sounded totally different inside and outside the cabin. When the fake engine noise was turned on, the engine sound filled up the entire cabin, sounded fuller, and as the engine rpms increased the tone of the engine noise became much more of a production, also with the fake engine noise you could not hear the whizzing of the turbos. With the fake engine noise turned off, the car sounds like a traditional Porsche engine, with the sound comes from the back of the car, and unfortunately you can hear the high pitch of the turbos doing their thing.
I am ashamed to admit that I kind of liked the fake engine noise. Ignorance was bliss. It was way better than on the cayman because there was no drone at highway speed and the tone was a bit more exotic. Now I need to decide whether to turn it back on, upgrade the exhaust for real engine noise, or leave it as is.
i have no idea if the fake engine noise in my Carrera T is called sound aktor, and I do not know if this is unique to the T or if it is on other models, years, or paired with certain options etc. If the engine sounds like a different animal inside the cabin from outside, that may be an indication there is fake engine noise.
do you happened to have picture of the back of the rear speaker wiring ? Is it as simple as disconnecting the additional connector to the speaker to disconnect the "fake engine noise" ?
Track Day
Joined: Feb 2025
Posts: 19
Likes: 20
Flat 6 sells a block off kit, the sound isn't fake, it just lets engine into the cabin via a tube. There are 2 foam circles in the engine bay that you can block off. The 718 Soundaktor, which I disabled on ours, basically takes the engine vibrations and amplifies them so in a way it is fake noise but it isn't coming through the speakers. From reading all these threads I don't believe the 992 has noise coming through the speakers. I certainly don't notice it on my T, the engine noise doesn't increase when I increase the music volume.
I cannot speak for anyone elses 992 because I dont know if the engine noise situation changes by options, year, model, chip shortage etc. I would not be surprised if some 992s have fake electronically generated engine noise and others do not.
Track Day
Joined: Feb 2025
Posts: 19
Likes: 20
Sorry, this was done by a shop so I do not have pictures. Let me ask the shop if they have picture or know if the fake engine noise is connected to a unique fuse like in the cayman.