A handy tool for DIY audio enthusiasts. It generates any desired audio frequency and analyzes your audio system’s frequency response.
Cost / License
- Free
- Open Source (MIT)
Platforms
- Windows
- Linux



iSpectrum is described as 'Easy to use audio spectrum analyzer that allows you to view live audio in a standard frequency plot, a stereo oscilloscope view and a waterfall display' and is an app. There are more than 10 alternatives to iSpectrum for a variety of platforms, including Windows, Linux, Mac, Android and Flathub apps. The best iSpectrum alternative is Simple Audio Sweeper, which is both free and Open Source. Other great apps like iSpectrum are Friture, SignalView, Audio Spectrum Analyzer and WaveSpectra.
A handy tool for DIY audio enthusiasts. It generates any desired audio frequency and analyzes your audio system’s frequency response.



Friture is a program designed to analyze audio input in real-time.
Friture displays audio data in several widgets, such as a scope, a spectrum analyzer, or a rolling 2D spectrogram.

SignalView is a stereo sound visualization VST3 plugin. It has a time domain view and a frequency domain view with optional linear or logarithmic display. There is also a sonogram(waterfall) view to see trends in the spectrum.


Spectrum Spectogram Analyzer was designed with accuracy and easy of use in mind. It can be used for monitoring or measuring environmental sound or noise; help tuning instruments; timing short sound events; and educational purpose.


WaveSpectra is a tool that (FFT fast Fourier transform) an audio signal as input and sound card, the Wave file, and displays the frequency components (spectrum) in real time.

Real-time audio spectrum analyzer with reasonable frequency resolution across the the entire frequency spectrum.


Signalizer is a all-in-one signal visualizing package with a bunch of unique focus-points; real-time audio visualization with optimized 3D GPU graphics, everything being scalable and zoomable gridlessly as well as being arbitrarily precise in both settings and display.




A powerful software implementing a Spectrum Analyzer, Oscilloscope, Frequency meter, Distorsiometer, Volt meter and more... plus complete D/A conversion, ZRLC, Impedance meter

Multi-instrument, audio analysis and metering software for Post and Broadcast Engineers, Music Engineers, Video Editors, Sound Designers and Composers and everyone else that works with audio.




Xoscope uses the input of your Sound Card, EsounD and/or a ProbeScope/osziFOX and Bitscope-Hardware. It supports 8 channels and a variable timeline, math, storage, measurements, and load/save data.

Collection of programs for audio measurements and analysis in acoustical and communication systems. Uses standard and professional PC sound cards for audio signal acquisition and generation.




MiniMeters is a small persistent & standalone metering app for macOS/Windows. It accepts audio input from any input device on macOS/Windows, the default output device on Windows, as well as an included VST3/AU plugin to insert into your DAW which transmits audio to the...


