Inibuilds A350 Sound Inaccuracy

[HimMonster27]

Hello. This is a minor inaccuracy with the A350 regarding the engine sounds. At 25% thrust, the sound is inaccurate. I am a person with perfect pitch (I can identify musical notes just by hearing the sound) so I can identify the inaccuracy. At 25% the sound should be of roughly a C natural. The current model has the sound of an lower E natural. I have compared this with cockpit takeoff videos from real world takeoffs. If you don't believe me, compare the current takeoff sounds to a cockpit sound recordings below and see if it sounds different at 25%. If need be try to find someone else with perfect pitch so they can compare the sounds to cockpit recordings. This is just a suggestion to make the aircraft better. It is not the most off, but I think it is off enough that it should be mentioned.

Simulator:

Real: 

 

[drpfthick]

There are a few other factors apart from the thrust % that might affect the fan's speed, and therefore perceived pitch:

• Engine variant - the Trent XWB comes in the XWB-75, XWB-84 and XWB-97 variants, and the thrust % is relative to the maximum thrust for that variant.
• Engine wear - older engines might have to spin faster to produce a given thrust %.
• Packs ON/OFF - packs ON introduce engine inefficiency, so a higher rotational speed is needed for a given thrust %.

Not sure if these factors are enough to account for the pitch change that you hear. In any case, you can try to compare N1 vs pitch, since N1 is directly proportional to the pitch, and is a better test of simulation accuracy.