SpectrumViz: LED Audio Meter
Retro hi-fi music visualizer
Only for Mac
$5.99
Mac
A retro LED spectrum display for everything your Mac plays. Runs from the menu bar, sits in a corner of your screen or fills it, with four color schemes to choose from.
SpectrumViz shows your Mac's audio as columns of LEDs, in the style of the spectrum display on an 80s hi-fi amplifier.
It runs from the menu bar, without a Dock icon. The display is a small window you can park in a corner of the screen and keep above your other windows, or run full screen.
There are four LED color schemes, 80s Hi-Fi, Plasma Red, Amber and Rainbow, 16 to 32 frequency bands, and a stereo or mono layout. A peak indicator and frequency labels can be switched on or off.
SpectrumViz only needs permission to record system audio, not the screen. The audio is processed on your Mac and never leaves it, and the app collects no data.
macOS asks for that permission the first time you open the display. If you declined it, you can turn it on later in System Settings.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The LEDs no longer freeze when your Mac's audio briefly drops out. The frequency bands now always span 40 Hz to 16 kHz, matching their labels.
The developer, Jan P. Barnholt, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Jan P. Barnholt
- Size
- 2.1 MB
- Category
- Music
- Compatibility
Requires macOS 14.6 or later.
- Mac
Requires macOS 14.6 or later.
- Mac
- Languages
English and 4 more
- English, French, German, Japanese, Spanish
- Age Rating
4+
- 4+
- Copyright
- © 2026 Isle of the Kakapo
