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Old 15th Jun 2018, 17:26
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pineteam
 
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Why cockpit noise reduces with altitude?
Hello guys,

I noticed on the A320 family that if you keep the same IAS during climb, it seems that the cockpit noise is much less at 35000 feet vs 10 000 feet. But I really don’t know why. Also I noticed, the wind noise starts to build more and more the higher you go but overall cockpit noise is definitely quieter at high altitude versus low altitude for a constant IAS. Could someone provides a logical explanation?
Bonus question: Sometimes during climb, you hear like a « bang » or cracking sound on the side but I have no clue also what it is...
Thank you in advance.
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