An Audio Spectrum Analyzer, Spectrograph, Decibel Meter, and Music Player for macOS

Professional Audio Visualization & Analysis for macOS. Elevate your audio workflow with high-precision frequency data, real-time signal feedback, and a built-in local music player.


Requires macOS Big Sur or newer. Universal App (Intel & Apple Silicon Native).

Waveform View

Display the raw input signal as a continuous wavy line. Monitor real-time input gain, adjustable display widths, freeze capabilities, and precise decibel levels (dB FS and dB SPL).


Sonance Waveform View

Spectrum Analyzer

View frequency distributions as vertical bars with custom vertical magnification (vMag) and horizontal zoom (hZoom). Switch between custom and macOS Accelerate FFT algorithms.


Sonance Spectrum View

Spectrogram View

Examine a 2D map of audio frequencies over time. Customize color ranges, sensitivity, logarithmic scales, and record extended sessions directly to high-resolution JPEGs.


Sonance Spectrograph View

What is Sonance for macOS?

Sonance is an advanced Audio Spectrum Analyzer, Spectrograph, Decibel Meter, and Music Player developed by Rare Works, LLC for macOS. It analyzes live audio feeds from internal microphones, line-in inputs, and USB hardware, or plays tracks directly from your local Apple Music library with native Apple Silicon support.

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Important Note Regarding Music File Compatibility & Storage

Sonance is an audio analyzer and local library player, not a universal media player. Due to strict Apple Mac App Store sandboxing limitations, song files must be located within your local user directory and imported directly into your Apple Music library:

/Users/"username"/Music/
  • External Drives & NAS: Music stored on external hard drives, USB sticks, or network shares are not supported.
  • Streaming & DRM Tracks: Apple Music streaming-only or DRM-protected files cannot be loaded directly into the built-in player. Tip: You can easily analyze these tracks by playing them through your Mac speakers and using Sonance's live microphone input mode!
  • Library Import Required: Files dropped into the folder won't appear automatically; they must be fully imported into the macOS Music app library so Sonance can index them.

Experience the Spectrum of Sound.

Sonance bridges the gap between precision hardware telemetry and rich audio entertainment. Whether you are troubleshooting acoustic environments or enjoying your local catalog, get crystal-clear real-time feedback.

Integrated Local Music Player

Play tracks directly from your local Apple Music or iTunes library. Choose between horizontal and vertical player orientations, complete with full shuffle, repeat, and playlist management controls.


Sonance Vertical Music Player View   Sonance Horizontal Music Player View

Music Library

Select individual songs, multiple songs, or playlists to play. Search or filter through Albums, Artists, Compilations, Composers, and Genres.

Sonance Music Library View

Comprehensive Preferences & Customization

Fine-tune every aspect of your analysis pipeline. Adjust FFT windowing functions (Rectangular, Hanning, Hamming, Blackman, Blackman-Harris), bar counts, frame rates, and custom color gradients for Spectral Flames.

Sonance Music Player Preferences Sonance Waveform Preferences Sonance Spectrum Preferences Sonance Spectrograph Preferences

Recent Release Highlights

Version 2.6 (9/6/2026)

  • Performance improvements across all views.
  • More accurate decibel meter readings when using the microphone.
  • Update to meet current App Store requirements.

Version 2.5 (1/9/2026)

  • Liquid Glass, macOS style icon updates.
  • Fix for macOS where stop music button behavior is optimized.
  • Tweaked user interface elements for modern macOS versions.

Thank You George DeVore for permission to use your Artwork & Music for marketing.