SpectrumViz for Mac

SpectrumViz turns your Mac's audio into columns of glowing LEDs, like the display on a hi-fi amplifier. Music, video, games: if your Mac plays it, SpectrumViz shows it. Park it in a corner of the screen, float it above your other windows, or run it full screen.

Features:

• Four LED color schemes: 80s Hi-Fi, Plasma Red, Amber and Rainbow
• 16, 24 or 32 bands, in Stereo or Mono
• Peak indicator and frequency labels, each one on or off
• Position the display in any corner, at 10 to 50 percent of the screen width
• Float on Top keeps the display above other windows
• Full screen in its own Space
• Lives in the menu bar, no Dock icon
• Asks only for audio capture permission. It never records the screen, and no audio leaves your Mac.