Scope AUv3 Visualizer3.2 - App Store

Get professional audio visualization with your AUv3 host or the standalone app. Scope transforms your audio into stunning visual displays using GPU-accelerated graphics with classic phosphor glow effects reminiscent of vintage CRT oscilloscopes and more.

Featuring Scope Linear, Scope Circular, Flurry particle, Spectrum, Spectrogram, Spectrum Equalizer, 3D Spectrum, Semaphore, Sliding Scope, Loudness and Polar Level visualization modes with single and multi-channel split view, plus an Overlap option that draws both channels on one canvas in Scope Linear. Multiple color schemes (including classic phosphor green, vibrant 80s Red and Rainbow) with smooth transitions. Flurry mode renders mesmerizing smoke-textured particles with audio-reactive dynamics, inspired by the classic screensaver. Loudness is an ITU-R BS.1770 / EBU R128 meter with integrated, short-term and momentary loudness, true peak per channel, loudness range and a three-minute history against streaming, podcast and broadcast targets. Polar Level is a stereo vectorscope that plots pan position against level in dB, shows out-of-phase content in red and includes a correlation meter. All visualization modes are fully automatable parameters in your DAW.

Optimized for HiDPI Retina displays with dynamic line width scaling, Scope delivers smooth 60fps+ performance for live performances, creative sound design and professional audio monitoring. Whether you are analyzing dynamics during mixing, assisting with sound synthesis or adding visual interest to your sessions, Scope provides the precision and aesthetic flexibility you need. Place it anywhere in your signal chain to visualize audio at any point, though it is typically used last to analyze the cumulative effects of your processing chain.

Version History New Loudness view: ITU-R BS.1770 / EBU R128 meter with integrated, short-term and momentary loudness, true peak per channel, loudness range and a three-minute history. Targets for streaming (-14 LUFS), podcast (-16 LUFS), EBU R128 (-23 LUFS) and ATSC A/85 (-24 LKFS), with pause and reset.
New Polar Level view: stereo vectorscope with pan position as angle and level in dB as radius. Out-of-phase content is drawn in red, with a correlation meter and freeze.
New Overlap option in Scope Linear: both channels on one canvas, each in its own color.
Views are now grouped into Scope, Display and Mastering menus. 3.2 Sep 20 Added iOS 27 compatibility. 3.1.1 Sep 17 New Sliding Scope view with OpenGL rendering and continuous scroll, plus Split View for per-channel rows across all pages. 3.1 Aug 9 Five new views join the oscilloscope. Spectrum and Spectrogram analyse the signal on a background thread, Spectrum Equalizer shows eight octave bands on a vintage LED-style display, 3D Spectrum draws an FFT waterfall you can rotate with a drag, and Semaphore lights three lamps from the lows, mids and highs.

A hamburger button now opens a native menu with every view, zoom preset and colour scheme at the top level, replacing the old drawn config panel.

All views share the vertical zoom parameter for input gain and the same colour schemes, including animated Rainbow. The 3D view's render style, auto-rotate and rotation speed are automatable, and its angles are saved with the project.

Fixed Flurry stuttering after long sessions, and fixed the menu button staying hidden after a menu selection. 3.0 Aug 1 Fixed jagged, step-like breaks in the waveform for a clean, continuous line.
Smoother animation that now adapts to your screen's refresh rate, taking full advantage of 120Hz ProMotion displays. 2.5.1 Jul 22 Stereo linear mode now overlays L/R on the full canvas for a clearer view.
Smoother waveform with frame-to-frame lerp and asymmetric transient response (linear and circular modes).
Thicker waveform core and beefier glow on hot signals.
Editor window size is now persisted between sessions.
Fixed a crash when the GL context wasn't ready yet. 2.5 May 3 Redesigned waveform rendering with smooth triangle-strip ribbons and tapered end caps.
Added frame-to-frame interpolation for fluid, jitter-free waveform animation.
Auto-detecting stereo mode with left/right channel split display.
Circular mode: animated zoom tunnel trails.
Flurry mode: improved audio responsiveness with asymmetric attack/decay and peak detection.
Optimized GPU rendering path across all visualization modes.
Fixed circular waveform seam alignment with amplitude changes.
Resolved cross-thread data race in waveform buffer updates.
Improved high-DPI rendering with wider, more visible waveform lines.
Reduced visual noise in glow ribbon width and opacity.
General rendering stability and performance improvements. 2.4 Feb 22 Fixed standalone app not capturing input after deep sleep. 2.3.4 Feb 12 The Flurry visualizer reactivity level now persists across sessions and stays consistent when switching between modes. 2.3.3 Feb 9 Fixed flurry mode stutter on app wake-up from suspend.
Disabled idle timer on standalone app to keep screen always on.
Bug fixes. 2.3.2 Feb 9 Fixed an issue where audio could be muted when running as an AUv3 plugin.
Resolved MIDI-related errors on iOS.
Improved stability with keyboard focus handling in AUv3. 2.3.1 Feb 8 Added Flurry, a mesmerizing particle visualization mode inspired by the classic screensaver. Features soft smoke-textured particles with trail persistence, audio-reactive star rotation and stream dynamics, and vibrant colorful rendering — all powered by OpenGL for smooth, real-time performance.

View Mode (Linear, Circular, Flurry) is now a fully automatable parameter in AUv3/AU hosts, allowing DAW automation of visualization modes. Existing presets are automatically migrated to the new system.

Config menu now scales 2x on larger displays (iPad and desktop windows 900px and wider) for improved readability and touch targets.

Fixed various visual glitches. 2.3 Feb 7 Added a vibrant new Rainbow color scheme with smooth, randomized color transitions. Colors smoothly fade between random hues over 6-12 second intervals, creating dynamic and engaging visualizations that complement your music.

Implemented ultra-smooth waveform display. Waveforms now render with more elegant curves, providing superior visual quality in both linear and circular modes.

Improved line thickness balance between linear and circular display modes, with anti-aliasing enabled for crisp, professional-looking waveforms at any zoom level. 2.2 Feb 4 Enhanced Zoom System:

• New horizontal zoom slider with dedicated controls
• Unified label positioning system for consistent UI
• Optimized zoom label rendering with proper cleanup
• Improved zoom controls that properly exit with config menu

Performance Improvements:

• Full OpenGL rendering pipeline for complete hardware acceleration
• Optimized rendering performance across all platforms
• Enhanced GPU efficiency for smoother operation

Platform Optimization:

• Disabled audio output for iOS standalone build
• Improved cross-platform compatibility

Bug Fixes:

• Fixed zoom labels persisting after config menu exit
• Resolved rendering pipeline issues for consistent acceleration
• Enhanced stability and reliability 2.1 12/24/2025 Complete Visual Overhaul:

• GPU-accelerated OpenGL rendering with classic phosphor glow and CRT-style persistence
• New circular oscilloscope mode with mesmerizing spiral trail effects
• Multiple color schemes with smooth transitions (phosphor green, 80s Red, and more)

iOS Touch Controls:

• Tap to toggle configuration menu with intelligent auto-hide
• Two-finger tap for instant pause/play control
• Horizontal swipe gestures to navigate color schemes
• Advanced pinch zoom with vertical, horizontal, and diagonal scaling

Enhanced Display:

• HiDPI optimization for Retina displays with dynamic line scaling
• Full automation support for all visual parameters
• Improved state persistence across sessions
• Smooth 60fps+ performance

Bug Fixes:

• Fixed mouse wheel zoom persistence in AUv3
• Modernized framework with improved stability
• Enhanced cross-platform compatibility 2.0 12/17/2025 Waveform rendering has been significantly optimized with advanced sampling algorithms and intelligent caching systems that deliver faster performance while preserving crisp visual quality.
The new zoom controls allow users to adjust vertical magnification from 0.1x to 10x using simple tap up/down gestures, with double-tap functionality to instantly reset to default view.
The app now features dynamic refresh rates that automatically scale up to 120Hz on compatible devices, providing ultra-smooth scrolling and interactions.
The minimum window size has been updated to 270x100 pixels to ensure better usability across all screen sizes and device types. 1.7 05/24/2025 We've upgraded our plugin to accommodate stereo inputs, fusing these signals into a singular, streamlined oscilloscope waveform, thereby enhancing the visualization process. 1.4 07/02/2023 Improved visualization of waveform.
Tapping the screen now displays volume indicator lines for -6dB and -3dB.
The AUv3 plug-in now retains its window size. 1.3 06/26/2023 Fixed the issue where the AUv3 extension was unavailable.
Implemented a default window size of 320x240 when loaded on the AUM app. 1.2.1 03/14/2023 Made minor enhancements to the scope drawing functionality.
Increased the refresh rate of the scope frame rate from 30 fps to 120 fps.
Performed a major update to the framework. 1.2 03/13/2023 iOS 15 compatibility.
Framework update.
Inter-App Audio compatibility. 1.1 09/24/2021 1.0 05/11/2020