Where can I find a dancing lights control module?

Question

I drive a taxi with a few extras. I have a video entertainment system that doubles as a communication system for the hearing impaired. Using voice-to-text, when I say appears on one of the 15" screens, and passenger who cannot hear me, can then respond using a wireless keyboard. In this manner, I can talk to hearing impaired passenger in much the same way as those who can hear me.

On the video screens, I also play music videos, and would like to add dancing lights, with specific colored LED lights assigned to specific tone ranges in the music. In this manner, these passengers can enjoy, if only in a limited way, the music, also. But, I'm having trouble finding one. Back in the 60s and early 70s, they were fairly common in home stereos, but they fell out of favor. Can anyone recommend a company that still makes them, especially for a 12-volt system?

Answer 1

You're talking about a spectrum analyzer, and I haven't seen one that's really portable and cheap. But this kit from Jameco would also provide some visual stimuli by displaying the output voltage to a speaker. It would probably even appear more active than an analyzer, because so much music keeps the same tones (chords) throughout the selection so a spectrum analyzer's output wouldn't move much at all.

Answer 2

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