Visualize Your Mixes
SPL HawkEye includes a versatile set of audio measurement instruments. Access a Level Meter, Loudness Meter, Bit Monitor, Vector Scope, and Spectrum Analyzer. Unique features like bit-depth analysis and high-frequency monitoring offer a new window into the world of high-resolution audio recordings.

Hit Target Levels and Fix Mix Issues
Monitor your mixes with the Level Meter to ensure you leave enough headroom; avoid distortion when your music is uploaded to Spotify, iTunes, and TIDAL. Target specific integrated loudness levels using the Loudness Meter to prevent your tracks from being reduced in level or increased in level—and limited—by streaming services. Reveal problems in digital signals related to bit usage, depth, distribution, and DC offset. Identify phase-related issues that suck the life out of your mixes using the Vector Scope and pinpoint problematic resonances with the Spectrum Analyzer.

Clean and Flexible GUI
The graphical user interface (GUI) follows aviation industry guidelines for designing cockpit instruments. HawkEye presents all information uncluttered, minimizing eye strain over extended periods of use. HawkEye’s main view shows all measurement instruments within a single window. Any instrument can also be undocked and used within its own resizable window by double-clicking on it, allowing you to reposition the instrument to best fit your screen.


  • Left, Right, Mid, and Side True Peak and RMS Metering.
  • dB full scale and Katz-Scales.
  • dBTP Hold and falling numeric displays.
  • A Loudness Meter that can display Peak to Loudness Ratio (PLR), Peak to Momentary Loudness Ratio (PMR), Peak to Short-Term Loudness Ratio (PSR), Integrated Loudness (IL), Momentary Loudness (ML), and Short-Term Loudness (SL).
  • Timeline loudness display.
  • LU target selection.
  • Loudness range histogram.
  • 64-bit Bit Monitor.
  • Real bit-depth display.
  • Bit pattern and distribution timeline.
  • Direct current (DC) offset meter up to -40 dB.
  • Vector Scope that reveals stereo balance, stereo width, and mono compatibility details.
  • Luminescence slider that defines how long the Vector Scope signal stays on the screen.
  • Balance meter to help you identify if your mix pulls too much to the left or right.
  • Phase correlation meter to help you maximize punchiness.
  • Spectrum Analyzer with Spectrogram, Pano/Phase, and 1/3 Octave view.

Customer Reviews

  • Metering at its finest

    by Swisha G
    After years of using free meters, I decided to invest in Hawkeye and it has been well worth it. The information is clear and helpful to get your mix exactly where you want it.
  • Awesome!

    by AORUA
    Excellent how precise the spectrum display actually is. It tells you everything you need to really find an issue in the frequency range. This plugin is beautifully designed and useful in so many… Read More
  • hawk eye

    by erv
    extrem usefull
  • groundbreaking

    by Alex Hepting
    Already at first iteration packed with features essential for detecting imbalances, targeting dynamics, inaudible frequencies which could draw energy and therefore more dynamic range, testing new… Read More
  • Fails as Spectrum Analyzer

    by klasus
    I bought SPL HawkEye on sale, becasue I needed a single window Metering tool since the one I was using before was 32 bit only so I could no longer use it.
    Although it's a useful single screen… Read More


Supported Plugin Formats
AAX Native, AU, AAX AudioSuite, VST2, VST3

Supported Plugin Formats:
AAX Native, AU, AAX AudioSuite, VST2, VST3
SPL HawkEye is also available as a standalone app.
SPL HawkEye standalone version (Win)
SPL HawkEye standalone version (Mac)

Supported Operating Systems:
macOS 13 down to macOS 10.11
Windows 11 down to Windows 8

Intel only

x64-compatible CPU

System Requirements

Display resolution: 1440 × 900px or 1280 × 960px or higher

Memory: 2 GB RAM


With the Installation Manager you can select, download & install all the Plugin Alliance products. Select any and all formats you need for your system! Mac & PC.



SPL HawkEye - Changelog

Version 1.0 (Jan 9, 2019)
- Initial release