WaveShaper CM

WaveShaper CM free multi-fx | oscilloscope | waveshaper by Cableguys

WaveShaper CM is a free multi fx and oscilloscope and waveshaper VST, Audio Unit plugin developed by Cableguys. Compatible OS(s): Windows 64b, macOS.

Free with Computer Music magazine, WaveShaper CM is a plugin effect that lets you design your own distortion curves and analyse signals with a built-in multi-function oscilloscope.

This is an original plugin designed just for CM by Cableguys. Here’s what you get in WaveShaper CM:

  • Design your own waveshaping curves using soft, hard and sharp points.
  • Oscilloscope with Stereo, Left or Right view and Waveform zoom and freeze, syncable by tempo, frequency or MIDI note.
  • Online preset sharing system with tons of ready-to-go presets.

Get Computer Music magazine online and you can download WaveShaper CM right away. Find out more.

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Spectral Eye

Spectral Eye free oscilloscope by Secret Base Design

Spectral Eye is a free oscilloscope plugin developed by Secret Base Design. Compatible OS(s): iOS.

Spectral Eye analyzes incoming audio signals to extract the underlying frequencies. Most sounds are built up from a variety of sine waves; a simple whistle might be a single wave, while a guitar, piano, or the human voice have many waves added together.

By using a Fast Fourier Transform, sound can be decomposed into each frequency. Normally, this information is displayed on a chart, and there are number of excellent apps that do exactly this. Spectral Eye rearranges the FFT into a spiral, so that frequencies that are an octave apart are lined up as rays from the center of the display. The strength of each frequency is represented by the size of a red circle.

Play music, and Spectral Eye will reveal the frequencies. For a guitar, it’s easy to see that in addition to the root frequency of a note, there are also a number of harmonic frequencies — and these change based on the strings used, the pickups, and the amplification system. It’s the frequencies present in the notes that make a Telecaster sound different from a Les Paul, and a piano different from a trumpet. Play an instrument, music from your iTunes library, or have it listen to whatever sounds are nearby — the display is fun to watch.

If you’re interested in understanding the nature of sound, use Spectral Eye to get a better view. The app was created as a utility used in the development in other Secret Base Design apps; we’re making it freely available, because we found it to be useful, and thought others might like it too.

The app will remain free, and will not have ads. If you find it useful, we would very much appreciate a review in the app store, and you can get in touch with us through our support site, our Facebook page, or Twitter.

Have fun with the app, and we hope you enjoy opening your Spectral Eye!


Signal Analyzer

Signal Analyzer free spectrum-analyzer | oscilloscope by rs-met

Signal Analyzer is a free spectrum analyzer and oscilloscope VST plugin developed by rs-met. Compatible OS(s): Windows.

Signal Analyzer is a combined oscilloscope / spectrum-analyzer plugin for inspecting signals in real-time in the time- and frequency domain.



s(M)exoscope free oscilloscope by Smart Electronix

s(M)exoscope is a free oscilloscope VST, Audio Unit plugin developed by Smart Electronix. Compatible OS(s): Windows 64b, macOS.

By Bram @ Smart Electronix.

s(M)exoscope is an oscilloscope VST plugin. You can use it to visually monitor audio wave forms.


  • Available as a Standard insert effect or as a special Modular version optimized especially for modular VST hosts like Plogue Bidule or AudioMulch.
  • Display controls – Time (number of pixels per sample) & Amp (amplitude of the waveform in the display).
  • Retrigger modes – Free, Internal, Rising & Falling – with Retrigger Threshold. External mode also available in the modular version.
  • Options – Sync Redraw, Freeze, DC-Kill & Channel.

The s(M)exoscope also contains a tool that can be used to analyze the waveform currently in the display. Based on where you place a marker, the tool analyzes the x and y dimensions of the waveform to calculate the following:

  • Selection amplitude (linear).
  • Selection amplitude (decibels).
  • Selection length (in samples).
  • Selection length (in seconds).
  • Selection length (in milliseconds).
  • Selection frequency (assuming that the selection is one cycle in length).



ProgOsc free oscilloscope by Progress Audio

ProgOsc is a free oscilloscope VST plugin developed by Progress Audio. Compatible OS(s): Windows.


  • X & Y scale knobs adjust the zoom on the screen.
  • Update control allows you to set how quickly the screen redraws.
  • Slide switch lets you monitor just the left channel, just the right, or both at the same time (each channel is drawn using a different colour on the graph).



Oscope free oscilloscope by Sound-Base Audio

Oscope is a free oscilloscope plugin developed by Sound-Base Audio. Compatible OS(s): Android.

•  Scope, Meter, & FFT displays
•  FFT peak tracking with readout
•  Quickly take screenshots
•  High contrast colors for view-ability.

This app requires minimal permissions, but must have permission to access and record audio from the device’s microphone, as well as permission to write screenshots to the device’s storage.



Oscilloscope free oscilloscope by SocaLabs

Oscilloscope is a free oscilloscope VST, Audio Unit plugin developed by SocaLabs. Compatible OS(s): Windows 64b, macOS.

Product Description:

  • Stereo Oscilloscope.
  • Negative or positive edge trigger.
  • Adjustable trigger level.
  • Y Offset per channel.



Gonio free correlation-meter | oscilloscope by UKM

Gonio is a free correlation meter and oscilloscope VST plugin developed by UKM. Compatible OS(s): Windows.

Gonio3 is a simple vector oscilloscope with correlation graph for evaluation of the stereo image of your audio signal.