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Music Theory and Ravelights

Fancy marketing aside, here’s how Ravelights actually work.

Demo of HZ detection working (above)


There are two forms of beat detection used in sound activated designs. DB and HZ. DB is decibel detection which uses volume and HZ pulls frequency out of a song to understand what is a base note. DB is often used in cheap lights, HZ is very hard to get right.


Ravelights use HZ. It’s why it took us so long to perfect & why they are better than anything else on the market.


HZ uses an algorythm called an FFT. Running an FFT on a chip at a price point of Ravelights is a really difficult challenge. We use a custom mix of intense math cocktails and tricks to make it work. Ravelights heavily rely on clock speed of our chip to sample the correct frequency. Ravelights are clocked at 20Mhz. Your PC is around 4Ghz. (4000Mhz) We use lots of magic to get this to work. 🧙


Ravelights use similar technology to very expensive DMX equipment.
If you are familiar with audio gear, you will realize that having this technology in your pocket is a pretty impressive feat. Props to the engineers! Check out the demo video above of this working.


Get The Best Performance from Ravelights:


When Ravelights hear a low enough frequency, they trigger the LED. They love subwoofers and work best when one is present. Bluetooth speakers often lack subwoofers and genuine lower frequencies. Ravelights auto adapt to this using an algorythm called a ring buffer but you will find raising the volume and moving the speaker closer will produce a more accurate beat detection.


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