Hello,I am experiencing an odd, and frustrating sound issue. Seems to apply mostly to turbine powered aircraft (any), and happens mostly when I am taxiing or advancing the throttle for takeoff. I'll try to describe it as best as I can...You know how on a surround sound system you can hear the sound go "around" the room. Well the engine sound is like that. I know that probably makes no sense, but is the best way I can describe it. If anyone else has experienced the same issue and can shed some light, it would be appreciated!Thanks :)Win 7 64bitquad 9550fsx w/ accel.

Is it a swooshing sound? Search my posts. Maybe we are talking about the same thing. And no, I don't have a solution yet.

Hello,I am experiencing an odd, and frustrating sound issue. Seems to apply mostly to turbine powered aircraft (any), and happens mostly when I am taxiing or advancing the throttle for takeoff. I'll try to describe it as best as I can...You know how on a surround sound system you can hear the sound go "around" the room. Well the engine sound is like that. I know that probably makes no sense, but is the best way I can describe it. If anyone else has experienced the same issue and can shed some light, it would be appreciated!Thanks :)

Many sound sets for FS aircraft are not true stereo, though they often claim to be. What happens is that a sound designer takes two identical waveforms representing for example left and right engines, then places them left and right in the stereo field. But this is not stereo, and is more like two mono signals placed in a left and right field, and they are in fact the same waveforms. When you do this you are in effect cancelling the stereo out, due to the "phasing" effect of two waveforms which are so similar that they overlap or coincide in a slow rhythmical pulse. This phasing has the effect of nullifying or exaggerating the signal and increasing/decreasing the perceived amplitude of the waves as they move slowly in and out of sync. This also sets up another waveform which is the positive or negative harmonic sum of the two wave forms in and out of phase. The perceived effect is one of a randomly phasing sound which appears to be permanently moving around the stereo image, and also sets up a subsidiary pitch which goes slowly up and down in concert with the phasing of the two signals.The solution is to design a proper stereo pair of sound sets which are sufficiently different in waveform to avoid phasing.Regards,Rob Young - RealAir Simulations

Many sound sets for FS aircraft are not true stereo, though they often claim to be. What happens is that a sound designer takes two identical waveforms representing for example left and right engines, then places them left and right in the stereo field. But this is not stereo, and is more like two mono signals placed in a left and right field, and they are in fact the same waveforms. When you do this you are in effect cancelling the stereo out, due to the "phasing" effect of two waveforms which are so similar that they overlap or coincide in a slow rhythmical pulse. This phasing has the effect of nullifying or exaggerating the signal and increasing/decreasing the perceived amplitude of the waves as they move slowly in and out of sync. This also sets up another waveform which is the positive or negative harmonic sum of the two wave forms in and out of phase. The perceived effect is one of a randomly phasing sound which appears to be permanently moving around the stereo image, and also sets up a subsidiary pitch which goes slowly up and down in concert with the phasing of the two signals.The solution is to design a proper stereo pair of sound sets which are sufficiently different in waveform to avoid phasing.Regards,Rob Young - RealAir Simulations

That does sound like what I am talking about.

If you turn your (virtual) head a bit, it should give you a stereo-ish sound. I use TrackIR and notice the phenomenon when I

If you turn your (virtual) head a bit, it should give you a stereo-ish sound. I use TrackIR and notice the phenomenon when I

Hello,I am experiencing an odd, and frustrating sound issue. Seems to apply mostly to turbine powered aircraft (any), and happens mostly when I am taxiing or advancing the throttle for takeoff. I'll try to describe it as best as I can...You know how on a surround sound system you can hear the sound go "around" the room. Well the engine sound is like that. I know that probably makes no sense, but is the best way I can describe it. If anyone else has experienced the same issue and can shed some light, it would be appreciated!Thanks :)Win 7 64bitquad 9550fsx w/ accel.

What sound system are you using? I ask, because had a similar problem after moving to W7, and it turned out that the Creative Labs SoundBlaster Audio Console EAX had somehow switched itself to select "Cathedral", or one of the "echo-ey" built-in sound enhancements. Clicked on "No Effects", and it was fixed!

That is kind of what is sounds like - a effect - but it only happens with some aircraft.I am using onboard sound and from what I can see there are no other settings except the default windows ones. I think the guy that build the system didn't install the control panel for the sound driver. He probably did this because I put the fear of G-d in to him about installing anything that was not completely necessary.

Thank you for the replies gents! I have been playing with my sound card settings, and have found some improvement.-Dighost