Urgent.News

What's breaking now, across thousands of outlets.

More in Tech

I Built a Binaural Beat Generator — Then Proved It With a Live FFT Spectrum Analyzer

The "frequency healing" corner of the internet runs on faith. Apps ship MP3s labeled "40Hz gamma" and ask you to believe it. I'm a life scientist who builds web tools, and I couldn't ship that.

  • SereneSynth is a browser-based binaural beat generator with live spectrum analyzer
  • Binaural beats are perceived by brain, not detected by physical means
  • FFT size 16384 reveals 40 Hz carriers as distinct peaks at 200.0 and 240.0 Hz

More from Friday 4 September →