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



Visual Analyser is described as 'A powerful software implementing a Spectrum Analyzer, Oscilloscope, Frequency meter, Distorsiometer, Volt meter and more... plus complete D/A conversion, ZRLC, Impedance meter' and is an app. There are more than 10 alternatives to Visual Analyser for a variety of platforms, including Windows, Linux, Android, Mac and Flathub apps. The best Visual Analyser alternative is Simple Audio Sweeper, which is both free and Open Source. Other great apps like Visual Analyser 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.

Waveform and spectrum analysis view of incoming audio, very fast


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.




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


Spetralissime is a standalone Spectrum Analyzer application based on high precision band pass filter bank, more adapted to the human audition.

The PC based Soundcard Oscilloscope receives its data from the Soundcard with 44.1kHz and 16 Bit resolution. The data source can be selected in the Windows mixer (Microphone, Line-In or Wave). The frequency range depends on the sound card, but 20-20000Hz should be possible with...



iSpectrum is an 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.
You can adjust the display resolution, center frequency and save images to disk.

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.




Both show real-time oscilloscope waveforms and spectrum analysis of incoming audio