P51 Sounds

[Charly_Owl]

Hi there, people,

 

I was wondering... has ED released any information about the sound engine of the game yet? Will there be features like that amazing "whistle" of a supercharged low-flying Mustang depending on your camera view? Will the engine sound exactly as the original? Many sims, such as the early versions of Il-2, had some flat/boring "bee-sounding" engine sounds (fortunately, mods corrected that eventually).

 

Whistle sound:

 

Fly-by sound:

 

Sound of pure awesomeness:

Edited April 13, 2012 by Charly_Owl

[digitaljjd]

I'll give it to you, that whistle sound is pretty sweet.

[Nate--IRL--]

BTW the whistle is from the gun ports @high AoA, not the super charger. A common misconception.

 

Nate

[cichlidfan]

Given the fact that ED has pretty much full access to a live, flying P-51D, I would expect the sounds to be as accurate as they can get them within the limitations of the sim.;)

[EvilBivol-1]

The model audio is based on actual P-51 sounds specifically recorded by our team for the sim. There is a whistle when appropriate and in general I personally think the audio is excellent.

[Charly_Owl]

This is some glorious news, then! Thank you for the heads up, EvilBivol!

 

@Nate: Really? I didn't know that. I often associated the whistle sound to the supercharger, like in cars.

 

Could you elaborate on that? I'm not totally convinced that it's just the guns @ high angle of attack.

[Phantom88]

From ED/TFC Facebook page,P-51 Soundtrack,You can hear Mustang in background,And yes to the Whistle:thumbup:

 

http://soundcloud.com/btd-1-1/soundtrack-for-dcs-p-51

[Charly_Owl]

I must say that this sound is IMPRESSIVE! I think this sim will definitely exceed my expectations!

[sobek]

Could you elaborate on that? I'm not totally convinced that it's just the guns @ high angle of attack.

 

It is.

 

Listen to merlins running at the ground, the sound from the unmuffled exhausts is way too loud to hear the supercharger. The exhaust gas speed is supersonic, and there's enough mass flow to contribute significantly to top speed, they even made special exhaust ports to gain maximum thrust. Needless to say that the exhausts emit a lot of sound energy.

 

If you don't believe me, look at some vids on

(and be sure to watch vids where the audio is actually compliant with what you see), the whistle is only pronounced when the airframe is loaded, i.e. when there is significant alpha or beta. Edited April 13, 2012 by sobek

[MTFDarkEagle]

BTW the whistle is from the gun ports @high AoA, not the super charger. A common misconception.

 

Nate

It's not actually, the whistle sound has got to do with the position of the oilcooler and/or water cooler door(s).

[sobek]

It's not actually, the whistle sound has got to do with the position of the oilcooler and/or water cooler door(s).

 

There's some dispute about that, but i remember reading about a model where they removed the guns and completely sealed the ports and the whistle was gone.

[Yo-Yo]

There's some dispute about that, but i remember reading about a model where they removed the guns and completely sealed the ports and the whistle was gone.

 

THe whistle itself is generally generated at the airflow splitted with the sharp edge. I mean LEADING edge.

 

 

The radiator doors have only trailing edges and I think they can not be the sources of whistle. Moreover, the coupled air volumes (radiator tunnels) have large sizes and being excitated as resonators would generate low pitch tones.

Edited April 13, 2012 by Yo-Yo

[Nate--IRL--]

It's not actually, the whistle sound has got to do with the position of the oilcooler and/or water cooler door(s).

 

I have a link somewhere of a discussion between P-51 owners hunting for the source of the whistle, it turned out that when they taped up the gun ports the whistle could not be produced under any flight regime. I'll have a look later for the link.

 

It is definitely the gun ports

 

Nate

[MTFDarkEagle]

Here's one ;)

 

http://a2asimulations.com/forum/viewtopic.php?f=23&t=14842

[Nate--IRL--]

Found it - A general discussion between owners.

 

I taped up the barrels and just went for a quick flight and guess what? ..............No whistle!!

 

Not all Mustangs have the same whistle as some do it at high speed or in a dive, but this one whistles at high angle of attack which is why I suspected the inner gun barrels. The most noticable was at around 4g pulls and on landing if you put all three on the ground at the same time. Just did both, and it was quiet. Before you could definitely hear it from the cockpit and that means it must really be loud from outside!

 

http://www.mustangsmustangs.us/thehangar/index.php?topic=958.msg4091#msg4091

 

Here's one ;)

 

http://a2asimulations.com/forum/viewtopic.php?f=23&t=14842

 

Yep the Coke bottle effect is discussed later in that thread as the cause of the Wailing/Whistle sound

 

Nate

Edited April 13, 2012 by Nate--IRL--

[MTFDarkEagle]

Our 51 had custom plugs in the gun ports. Whistled just fine )

:)

[Nate--IRL--]

:)

 

Who to believe then? The sources differ.

 

Nate

[MTFDarkEagle]

Given Dudley's reputation and what I know he's done and flown, I'm believing him. The company of the link I provided earlier are going to investigate this litterally. I don't know if they have already though.

 

I also thought it was the gunports untill I was "convinced" by DH.

[159th_Viper]

Who to believe then? The sources differ.

 

 

How much will it be to hire Ferocious Frankie for a day? I've got a roll of Duct tape :P

[Nate--IRL--]

Given Dudley's reputation and what I know he's done and flown, I'm believing him. The company of the link I provided earlier are going to investigate this litterally. I don't know if they have already though.

 

I also thought it was the gunports untill I was "convinced" by DH.

 

That's fine - I'll believe TFC/ED who own a P-51 and spent some time recording it.

 

Nate