This device transmits sound wirelessly by giving any sound input, first sound amplifies through the power amplifier using LM386 Op-Amp then the sound will transmit through laser by transmitter and solar panel receive the intensity of laser on receiver side which is somewhat noisy and that is filtered using digital filters (LabVIEW Software) and gives sound to speakers. The big advantage of this device we can again reflect laser to another receiver which again gives sound on other speakers but then we have to use a better filter means a higher-order filter because the noise will increase as we receive the reflection from the laser so by this device we can set up & transmit any type of sound system to avoid wiring.
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