As Didier should be able to play song and speak load enough to able to play in the street
HF system
There is shure audio recever, so I can speak for the robot, it is wired with an octaver pitch so I can make a more robotic voice
Speaker system
I first took the audio part from a LD system :
A small audio mixer
https://www.thomann.de/fr/the_t.mix_micromix_2_usb.htm
Alpine amplifier
https://www.feuvert.fr/amplificateur/alpine-amplificateur-alpine-pdx-m12/p762249.html
Noise problems
i currently have a lot of noise problem, it seems to come from the raspberry.
It is probably to ground problems from power or usb inputs
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