kitari said:
Ok, so as most of you know, when you plug your battery up to your phantom, you get a nice little startup sound that comes from the motors. I was just wondering if it was possible to give it a custom startup sound or even better, if you could play music with them as you fly?
Yes and No!
The start up sound you hear is generated by the esc's and comes from the bell housing of the motors being driven at low frequency.
It is possible to have your own custom sound/tune but you would need to get into the firmware of the esc's and rewrite this section of the code.
It is not possible to have a tune play whilst flying as the esc's need to be synchronized with the motors and be able to accelerate and decelerate very rapidly. Any additional low frequency signal would not be possible to 'play' whilst the motors were receiving their rotational pulses.