Since last summer I have been trying to figure out a sound problem I have been having in FSX. Basically, it is a swooshing sound generated by the engines and it can best be described as phasing. Whether the description is accurate, I am not sure. I have changed drivers, purchased a dedicated sound card, changed settings... Nothing fixes it. I have posted about it before here but it has been a while. The CLS aircraft (747, 767) have the problem and the TSS sounds for FS9 ported to FSX have it as well. The Quality Wings sounds don't have the same issue but they don't sound right either.I have come to the conclusion that FS9 sounds can not be ported to FSX - at least with Windows 7. I just discovered a new thread in the CLS 767 forum that describes the same problem. I also looked up my old thread from January in their 747 forum and others reported the problem as well. At least I know I am not crazy.It must have something to do with the differences between FS9 and FSX. All FSX TSS sounds are great. All TSS FS9 sounds in FSX sound terrible. Audio environment sounds good. Most default sounds are fine. The Aerosoft Twin Otter sounds have the problem but the Sonic Solutions Twin Otter sounds are good (FSX Native).Another problem, which may be related to the above issue, is odd rpm levels when switching views. In some aircraft, even default ones, you can switch back to the vc and the engines will sound as if you are going full throttle even if at idle. I know this problem exists and so does Sonic Solutions because they say this on their Simmarket Twin Otter Page, "Doesn't suffer from common problems such as incorrect RPM's on view switching."So, have you had this issue?If so, do you have a solution?Do you know what causes it?Maybe our systems have something in common? ( I am pretty sure many people don't have this issue)Could it be that developers are not testing their sounds fully in FSX or they are not testing them with Acceleration, Windows 7 or some other common combination of software?

Since last summer I have been trying to figure out a sound problem I have been having in FSX. Basically, it is a swooshing sound generated by the engines and it can best be described as phasing. Whether the description is accurate, I am not sure. I have changed drivers, purchased a dedicated sound card, changed settings... Nothing fixes it. I have posted about it before here but it has been a while. The CLS aircraft (747, 767) have the problem and the TSS sounds for FS9 ported to FSX have it as well. The Quality Wings sounds don't have the same issue but they don't sound right either.I have come to the conclusion that FS9 sounds can not be ported to FSX - at least with Windows 7. I just discovered a new thread in the CLS 767 forum that describes the same problem. I also looked up my old thread from January in their 747 forum and others reported the problem as well. At least I know I am not crazy.It must have something to do with the differences between FS9 and FSX. All FSX TSS sounds are great. All TSS FS9 sounds in FSX sound terrible. Audio environment sounds good. Most default sounds are fine. The Aerosoft Twin Otter sounds have the problem but the Sonic Solutions Twin Otter sounds are good (FSX Native).Another problem, which may be related to the above issue, is odd rpm levels when switching views. In some aircraft, even default ones, you can switch back to the vc and the engines will sound as if you are going full throttle even if at idle. I know this problem exists and so does Sonic Solutions because they say this on their Simmarket Twin Otter Page, "Doesn't suffer from common problems such as incorrect RPM's on view switching."So, have you had this issue?If so, do you have a solution?Do you know what causes it?Maybe our systems have something in common? ( I am pretty sure many people don't have this issue)Could it be that developers are not testing their sounds fully in FSX or they are not testing them with Acceleration, Windows 7 or some other common combination of software?

I have seen a similar thing happen on a core 2 duo over-clocked from 2.66 to 3.6 GHZ. There is the possibility that some sound chips cannot cope with the overclock.It's worth checking whether you have the same issue when running at stock speed.You could eventually keep the over-clock, if you can find a way to leave the PCI BUS at default speed.Gerald Reilly

Thanks. I doubt the OC is the issue. Problem exist with on board sound and dedicated sound card.Problem exists if FS9 sound in FSX. FSX sound is great.

I had a problem with the sounds on two planes. I couldnt find a solution so I ended up going to the sound folder for the planes and removing the specific sound .wav, all is fine now

I could never find an offending file. They all sounded fine outside of the sim.

bump

Has your problem anything to do with this? http://forums1.avsim.net/index.php?showtopic=272919

Thanks but no. It is phasing.

After posting this on a number of forums, this is the best explanation that I have received:Some of the whooshing is due to FSX automatically applying a Doppler effect. This is generally more noticeable in panning around aircraft that make use of FSX sound cones. This effect is also brought out when using "locked spot" instead of "spot" for the exterior view. "locked spot" will move and stop repeatedly (a sort of rotational stutter) during a pan creating a frequency oscillation due to the FSX Doppler effect. "spot" will move more smoothly.This was on the TSS forum.It still leaves me wondering why I have the problem and so many do not. Is there anyone out there that has had good experiences with FS9 sounds in FSX with Acceleration and W7?

Gday mate Ive got the same issues, like you ive been everywhere man, im not a computer expert. When i looked at a audio site it just tottally went over my head. Your right its something to do with fs9, when i tried the drfault 737 it didnt do it, but then i tried the 747 , & it did it. I deleted the fs9 folder , thats when i noticed the 737 missing on the a/c select screen so thats why i assume the 737 is fs9 . This all started when i tried the 727 , it made this horrible swooshing sound when turning, 707 did the same, but the pmdg 747 didnt, its sound was ok , i hadnt tried the default 737, 747 at this stage,, so i was thinking that the a/craft were at fault(727,707) but the other day i tried the default 737 & noticed it didnt do the swooshing sound, thats when i tried the def 747 & it did I noticed if i shut down the engines then restart the swooching sound wasnt there when turning. Your also right in saying not a lot of people have this problem, or they are not saying, i hope you see this cya jeff

So, have you had this issue?If so, do you have a solution?Do you know what causes it?

Hi Jeff, Yes, I had the issue but I can't remember what I did to solve it. Among the things I remember to have changed:1) Downgraded the sound sample rate to 22Khz to match FSX's native sampling rate. (I just don't recall if it is exactly 22)2) Disabled all the advanced sound effects on my card.I will have to take a look tonight and see if I can see anything else.

Gday mate Thanks Ive got my card (realteck) set on default, which is 448000 khz ,i think,wouldnt have a clue if this is the correct setting, im not a compuyer wizz,. Ive been looking at many , many posts & not come up with anything , to explain it, I have my suspicions as to what causes it , i think audio enviroment ex airliner edition & my traffic has something to do with it , because i remember some thing strange with the sounds when i installed them, i cant remember which one but i distinctlly remember wiered sounds. Also i think its something to do with fs9. I did try changing freq a few times but didnt work, maybe it wasnt the right one , ill try that again. I wonder if d/bill is still out there as i would like to know what hes found, if anything, ive seen his other posts, i think we are going to the same places & its clear hes computer savvy as you are so if you do find something could you please simplify the answers thanks so much for responding

Yup, still here and still have the problem. I had it before Audio Environment and I actually got AE to provide a few replacement sounds (A321 and 747). I have not had a problem with the IU aircraft sounds in AE.So far, the only thing I have found that solves it is to use only FSX native sounds. I wish TSS would update some of their older packages.Bojote, I tried that setting with the onboard sound - no dice. The lowest my card goes is 16 bit, 44100. All effects are disabled. Again, I have tried a ton of different settings and nothing works.

Sound cones...http://www.fsdeveloper.com/wiki/index.php?title=Sound_Cones_in_FSX

Gday everybody Thanks, Ive seen that before, as i said, ive been to many many posts, thanks anyway. D/bill when i installed my traffic 2010 i got funny sounds , its when i installed audio env ex that it went away, it just sounds familar to what ive got now. Its strange that the pmdg 747 doesnt have these problems, at least it wasnt before , i havent flown it for awhile, but i know i did try it when this first started, also noticed when the pmdg 747 loads theres a small screen that pops up , it runs something then the plane loads. *******, i looked at freq & it doesnt go under 44000 hz thanks anyway Is there any special way to load a addon a/craft? eg load the default first? thanks cya