Real-time visualization of musical pitches from live audio
About this app
PitchVis listens to your microphone and turns the musical pitches it hears into a colorful, real-time visualization.
Under the hood it runs a Variable-Q Transform (VQT) over the live audio signal, which gives high frequency resolution in the low registers where music lives, then detects the prominent pitches and maps each one to a color. The result is an animated picture of the harmony, melody and tuning of whatever you play or sing. It is displayed in a spiral, 12 pitches per octave, one octave per spiral rotation.
Features:
* Real-time pitch analysis of live microphone input * Variable-Q Transform tuned for musical signals (especially choir singing) * Pitch-to-color mapping in a perceptual color space * Several visual modes (Full, Zen, Performance, Galaxy) * Tuning drift display in cents * Runs fully offline
PitchVis is useful for musicians, singers, music students and anyone curious about the structure of the sounds around them. It works with any instrument or voice.
The app requires only the microphone permission and does not connect to the internet.
Licensed under MIT, by Felix Monninger.
What's New in v1.29
Imported from the F-Droid repository index.
- Ported the viewer to Bevy 0.19, which fixes the screen flickering seen on many
- Android devices (a missing-synchronization bug in the Vulkan renderer, now fixed
- upstream in wgpu). Lowered the minimum requirement to Android 9 (API 28).
Version history
Jul 13, 2026 · 40 MB · Android API 28–36 · code 29
Imported from the F-Droid repository index.
- Ported the viewer to Bevy 0.19, which fixes the screen flickering seen on many
- Android devices (a missing-synchronization bug in the Vulkan renderer, now fixed
- upstream in wgpu). Lowered the minimum requirement to Android 9 (API 28).
SHA-256 5bb3113030045790dbdc48b13beaa0445f438db3c24a1247388ca5c9cf166253
Jun 30, 2026 · 36 MB · Android API 29–36 · code 28
Imported from the F-Droid repository index.
- First F-Droid release: built reproducibly from source and signed with our own
- key, so the published APK can be verified against this repository. No functional
- changes from the previous version.
SHA-256 dbd36d5198b2dc72e366de0beb71fb29d5c5aa674f9debe609b601c2fc276b18
Will it run on your device?
60%
- Targets newer Android builds, so legacy devices may be excluded.
- ABI coverage is focused on newer 64-bit devices.
- Aligned with the latest Android target SDK expectations.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be org.p1graph.pitchvis is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 1.28 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall PitchVis first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of PitchVis, and a listing is removed when the evidence for it stops holding up.
Get PitchVis
Every source we list for org.p1graph.pitchvis is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
5bb3113030045790dbdc48b13beaa0445f438db3c24a1247388ca5c9cf166253
Signing certificate
0bc6a6264f97dd09fe46616daa0aea8a6bab013f12cfc4bccda54cc5b54c1a05
Permissions Required
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
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