Professional-grade spectrum analysis meets beautiful visualization. Live Hz display, mic input, 25+ views. For engineers, musicians & sound enthusiasts.
Muzz is a professional-grade real-time spectrum analyzer built for audio technicians, acoustic engineers, musicians, and sound enthusiasts. Whether you're diagnosing room acoustics, analyzing live microphone input, inspecting harmonics and feedback, or studying the frequency characteristics of any audio signal — Muzz gives you the tools to see exactly what you're hearing.
21 spectrum graph types, from standard linear analyzers to advanced harmonic alignment and octave-aligned displays, give you flexibility no single visualization tool can match.
NEW IN 1.0.8
— Live frequency axis: Hz markers (100–8kHz) displayed permanently along the bottom of every visualization
— Long press anywhere on the visualization to pin the exact frequency at that point for 2 seconds
— Continuous background audio: Muzz now keeps analyzing when your screen locks or you switch apps — critical for live monitoring sessions
— CarPlay compatible: enabling the microphone no longer interrupts audio playing through your car system
— Frequency labels adapt automatically to dark and light mode
Core Features
— Load any audio file and visualize its full spectrum in real time
— Live analysis mode via device microphone — ideal for room acoustics, stage monitoring, and field work
— Persistent Hz frequency axis on every visualization
— Long press to inspect exact frequencies at any point on the spectrum
— Peak enhancer: isolates spectral lines (harmonics, fundamentals) and suppresses percussive noise
— Toggle visualization variants to explore alternative display modes
— Gain and treble controls to calibrate the display to your signal level
— Dark and light mode with automatic label color adaptation
— Runs continuously in the background — no interruptions during live sessions
21 Spectrum Graph Types
Bars Extended
Bars Short
Line Spectrum
Music Spectrum
Linear OAS
Overlapped Octaves
Octave Aligned Spectrum
Elliptical OAS
Spiral OAS
Harmonic Alignment
TriOct Spectrum
Overlapped Harmonics
Harmonograph
Cymbal
Rainbow Spectrum
Waterfall
Rainbow OAS
Rainbow Ellipse
Spinning Ellipse
Out of the Rabbit Hole
Down the Rabbit Hole
For in-depth theory on each spectrum type, tap the info icon to access the full Visualizations Guide.
Questions, bug reports, or feature ideas — we want to hear from you:
amitnadir@gmail.com
what good is a bar graph with out labels?I have no clue the db. range nor the frequincies that are displayed... how can i analyze anything if i dont know what im looking at. Yes there is a brief discription in the info section 32h to 8k so i have to figure out the freq layout to scale, serioulsy! Pointless without db levels and the frequencies labeled across the bottom. and side like a normal graph. I would like a refund.
BIG Help!
Anandamudita
Thank you so much for the development of this app. I purchased this app to assess the quality of my 🎶 files used for djing Conscious Dances, in the San Francisco Bay Area. I started out years ago with lots of MP3's but have since been buying higher quality files. It’s been super helpful to sort out the good the bad and the ugly songs in terms of their qualtiy, etc. ;o). This app would be far more useful if the song scroll slider could be manually moved (like in all music players, etc.). Sometimes I need to skip to the more firey part of the song for assessment, for example. Thank you for considering this request!
Laggy.
Acelakid94
I was hoping this was going to be like the visualizer that came with Windows Media Player back in the day, but It's doesn't respond to the music like you'd expect. The app itself also keeps freezing and I have to restart it to get it to play anything. Dont waste your time or money
Microphone doesn’t work when using car play
Taco was
Is there a way to allow the sound to be analyzed while using car play? It just pauses the sound when the microphone is unmuted.
Developer Response
Fixed in version 1.0.7 which is released soon.The issue was that activating the microphone was taking exclusive control of the audio session and cutting off CarPlay. We've updated the audio session to use mix mode, so CarPlay keeps playing while the mic captures and analyzes the live sound simultaneously. Give it a try on your next drive.
Version 1.0.8
Live frequency display
A frequency axis (100 Hz – 8 kHz) now appears along the bottom of every visualization. Long press anywhere on the screen (iOS) or click anywhere on the window (Mac) to see the exact frequency at that point - displayed for 2 seconds, then fades. Toggle the axis labels on or off from the side menu.
Background audio fixed (iOS)
Muzz now keeps running when your screen locks or you switch to another app. The audio engine also automatically recovers after phone calls, Siri interruptions, or headphone changes.
CarPlay compatibility fixed
Enabling the microphone no longer pauses CarPlay audio. Music playing through your car now continues uninterrupted while Muzz analyzes the live sound.
Frequency label colors
Labels adapt to dark and light mode - white on dark backgrounds, black on light.
Version 1.0.8
The developer, Amit Nadir, 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.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
