Acousto-optical conversion device and conversion method thereof

The invention discloses an acousto-optical conversion device and a conversion method thereof. The conversion device includes a plurality of audio-intensity identifiers for receiving a sound-source signal. The audio-intensity identifiers all identify audio-frequency signals with different frequencies and volume intensities from the sound-source signal and then outputting the audio-frequency signals. The audio-intensity identifiers are each connected directly with a light-source driver respectively and the light-source drivers are for receiving corresponding audio-frequency signals and converting the audio-frequency signals into electric signals. The light-source drivers are each connected with a light-emitting element used for receiving corresponding electric signals so that corresponding light signals are generated respectively. Through the method, an acousto-optical stereo effect is achieved and people feel as if personally on the scene.