Audio spectrum analyzer plug-in for professional music and audio production

Voxengo Span

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Voxengo Span

  -  8.4 MB  -  Freeware
Free Download

Security Status

  • Latest Version

    Voxengo Span 3.22 LATEST

  • Review by

    Sophia Jones

  • Operating System

    Windows XP / Vista / Windows 7 / Windows 8 / Windows 10 / Windows 11

  • User Rating

    Click to vote

  • Author / Product

    Aleksey Vaneev / External Link

  • Filename

    VoxengoSPAN_322_Win32_64_VST_VST3_AAX_setup.exe

Voxengo SPAN is a free real-time FFT (Fast Fourier Transform) spectrum analyzer designed for professional audio engineers, producers, and musicians.

Developed by Voxengo, a well-known developer of high-quality audio plugins, SPAN for PC provides detailed frequency analysis to help users make informed mixing and mastering decisions.

It integrates seamlessly with Digital Audio Workstations (DAWs) as a VST/AU plugin, making it an essential tool for music production and post-production environments.

Main Features

Real-Time Spectrum Analysis: Displays a detailed, accurate visualization of the frequency spectrum of an audio signal.

Configurable Spectrum Display: Users can adjust the FFT size, block overlap percentage, and window function for optimal performance.

Multiple Channel Analysis: Supports multi-channel processing, allowing left/right and mid/side spectrum monitoring.

Peak and RMS Metering: Offers precise peak and root mean square (RMS) metering for gain structuring.

Clipping Detector: Alerts users to potential audio clipping issues to prevent distortion.

Correlation Meter: Helps monitor phase relationships between stereo signals to avoid phase cancellation issues.

Customizable GUI: Adjustable colors, window resizing, and other user preferences to match workflow needs.

Presets and User Profiles: Save and load different analysis settings to optimize workflow efficiency.

User Interface

Voxengo SPAN features a clean, well-organized interface with customizable graph colors and display settings. The spectrum graph is clear, with grid lines that make frequency and amplitude levels easy to read.

Tooltips and numerical displays provide precise information, and the layout ensures quick navigation. While the interface might look overwhelming to beginners, it becomes intuitive with use.

Installation and Setup
  • Download this software from the official website or FileHorse.
  • Install the plugin by running the setup file and following the on-screen instructions.
  • Load the plugin into a compatible DAW (such as Ableton Live, Pro Tools, or Cubase).
  • Insert SPAN on the master or individual tracks to begin spectrum analysis.
  • Adjust settings according to preference for optimized performance.
How to Use

Load the Plugin: Open your DAW and insert SPAN on a track or the master bus.

Adjust Settings: Configure FFT size, overlap percentage, and color themes to suit your needs.

Monitor the Frequency Spectrum: Observe frequency peaks and valleys to identify problem areas in the mix.

Utilize the Metering Tools: Use peak and RMS meters to adjust volume levels effectively.

Check Stereo and Mid-Side Analysis: Monitor phase relationships and stereo imaging to maintain balance in the mix.

FAQ

Is Voxengo SPAN completely free?
Yes, SPAN is a free plugin with no hidden costs or trial limitations.

Which DAWs support Voxengo SPAN?
SPAN is compatible with most DAWs that support VST, AU, and AAX formats, including Ableton Live, FL Studio, Cubase, Pro Tools, and Reaper.

Can SPAN be used for mastering?
Yes, it is commonly used in mastering to visualize frequency balance and optimize the final mix.

Does SPAN affect the sound of my mix?
No, SPAN is a visual analysis tool and does not alter the audio signal.

How does SPAN compare to paid spectrum analyzers?
While SPAN is feature-rich, paid alternatives like FabFilter Pro-Q 3 and iZotope Insight offer more advanced metering and visualization tools.

System Requirements
  • OS: Windows 7, 8, 10, 11 (64-bit recommended)
  • Processor: Intel/AMD dual-core or higher
  • RAM: 4GB minimum (8GB recommended)
  • Disk Space: Less than 100MB
DAW Compatibility: VST, AU, AAX host software required

Compatible Windows and macOS plugin software: Cubase, Logic Pro, Pro Tools, Ableton Live, Reaper, Presonus Studio One, FL Studio, Cakewalk, Nuendo, WaveLab, GarageBand, Vegas, SoundForge, Audition, Samplitude, Digital Performer, Mixcraft, Bitwig Studio, Edius, others.

PROS
  • Free to use with no limitations
  • Accurate and customizable spectrum analysis
  • Multi-channel and mid/side analysis support
  • Low CPU usage for efficient performance
  • Works with all major DAWs
CONS
  • Basic user interface compared to premium analyzers
  • Lacks some advanced features found in paid alternatives
  • Learning curve for complete beginners
Conclusion

Voxengo SPAN is a powerful, free spectrum analyzer that provides professional-level frequency visualization and metering tools. Its accurate real-time analysis, low CPU footprint, and extensive customization options make it an invaluable tool for mixing and mastering engineers.

While it lacks some advanced features found in premium spectrum analyzers, its zero-cost entry makes it a must-have plugin for any producer looking to improve their audio analysis workflow.

Also Available: Download Voxengo Span for Mac

Download Voxengo Span Latest Version

  • Voxengo Span 3.22 Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

    Voxengo Span 3.22 Screenshot 1
  • Voxengo Span 3.22 Screenshot 2
  • Voxengo Span 3.22 Screenshot 3
  • Voxengo Span 3.22 Screenshot 4
  • Voxengo Span 3.22 Screenshot 5

What's new in this version:

Voxengo Span 3.22
- Change log not available for this version


Voxengo Span 3.21
- Change log not available for this version


Voxengo Span 3.20
- Change log not available for this version


Voxengo Span 3.19
- Change log not available for this version


Voxengo Span 3.18
- Change log not available for this version


Voxengo Span 3.17
- Change log not available for this version


Voxengo Span 3.16
- Change log not available for this version


Voxengo Span 3.15
- Changed spectrum's "Freq Lo" maximum to 500 Hz (down from 1000 Hz), and "Freq Hi" minimum to 600 (down from 2000 Hz), to permit finer low- and mid-frequency range selections
- Added the "Spectrum, meter border" palette modifier. Updated palettes.
- Made a small speed-up of GUI loading and drawing
- Fixed an issue with popup-menus not functioning in Logic Pro on Apple M1 native
- Implemented "Portable Setups" support (portable settings), read more in the Primary User Guide


Voxengo Span 3.14
- Change log not available for this version


Voxengo Span 3.13
- Added the "Large Cursor Readouts" plug-in setting which enables larger mouse position readouts, useful when the plug-in is placed on a distant dedicated monitor
- Fixed a drawing bug with the "Flat Panels" global switch disabled
- By frequent user request, the "Solo" switch's state is now saved together with the preset (a part of the routing parameters). While this opens up a possibility of leaving the "Solo" switch enabled and forgotten, this provides more flexibility, e.g. when mid/side processing is used.

Improved:
- overall graphics drawing performance
- anti-aliased line rendering of the secondary spectrum
- knob's renderings


Voxengo Span 3.12
- Added the "Panel border" palette modifier
- Updated all palettes, to reduce "border" contrast. An existing palette may need to be reloaded for the change to be visible
- Modified spectrum window's sliders to look less contrasted


Voxengo Span 3.11
- Added Apple Silicon native compatibility
- Added 1/48 octave spectrum smoothing option
- Improved spectrum smoothing precision
- Enabled the "asynchronous drawing" window mode on macOS; may fix the user interface "lagging"
- The "Copy to" button is now called the "Copy": this button now copies parameters FROM the selected group, NOT TO the selected group. This should improve the workflow
- Improved font rendering slightly


Voxengo Span 3.10
- Internal channel letters were changed to numbers
- Level meters can now display input channel names instead of internal channel indices
- Added "Stereo Swap" and "Stereo To Mono" routing presets
- Added AudioComponents interface to AudioUnit as the ".rsrc" interface may be deprecated in the future


Voxengo Span 3.9
- Change log not available for this version


Voxengo Span 3.8
- Added the preset list sorting function to the preset manager
- Redesigned the knob image
- Extended the "Color Editor" with color modifiers
- Added the "Gray Blue" and "Navy" color schemes
- Implemented "anti-aliased" line drawing optimization
- Fixed a bug where the "Hold" switch was not holding statistics


Voxengo Span 3.7
- Version 3.7 adds the "True Peak/Sample Peak" switch which can be used to switch between true peak and sample peak indication


Voxengo Span 3.6
- Added the "Align 0 dB" spectrum display mode. This mode enables alignment of stationary 1 kHz sinewave of 0 dBFS peak level to 0 dB visual level, irrespective of the “Block Size” setting. This mode may be useful for precise technical analysis of signals. When this mode is enabled, you may also need to set the “Slope” to 0, and adjust the “Range Low” and “Range High” values


Voxengo Span 3.6
- Fixed a minor frequency drift on deep zoom-in
- Fixed a minor spectrum power shift in non-Hann window modes


Voxengo Span 3.5
- Improved responsiveness during window resizing
- Improved visual quality at different visual interface scales
- Windows: implemented (switchable) higher-precision user interface update timer, for smoother display

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