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Old Oct 28, 2012, 12:01 PM
MrRCFlying is offline
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Originally Posted by lassehellsten View Post
Hi Andrew and the rest of you.

One problem we encounter (me at least) is the sound from the BL motors and propellers
Propeller sound is ok and can be adressed with balancing and changing prop
Motor is harder.
A question to Andrew:
Can you put a small mic close to the motor, reverse signal 180° and feed it to the amp?? Would maybe give noise cancelling following RPM to make your units stand out more.
Med vänliga hälsningar
That is something to look at. I am not sure, but playing both sounds on the same speaker may reduce the volume of the wanted engine sound. There are just some high KV motors that are just too noisy. Due to the laws of physics, it can only go so loud, and still be small, light, and energy effecient.

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