Alternatives to Voxengo SPAN
Inspect an audio signal with a real-time spectrum analyzer plug-in. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Voxengo SPAN
Inspect an audio signal with a real-time spectrum analyzer plug-in.
Replacements
Listings that take over the same core job as Voxengo SPAN.
Blue Cat's FreqAnalyst
View an audio signal's frequency spectrum in a production host.
Blue Cat's FreqAnalyst is another free spectrum analyzer plugin for Windows and macOS, without SPAN's correlation and loudness metering.
iZotope Insight 2
Professional metering suite for loudness, true peak and spectral analysis.
iZotope Insight 2 is a paid professional metering suite covering loudness standards, true peak and spectral analysis for streaming and broadcast delivery.
Friture
Visualize live audio with scopes, spectra and spectrograms.
Friture is an open-source standalone app for Windows, macOS and Linux that shows scopes, spectra and spectrograms of live input rather than running as a plugin.
Similar software
Related functionality, not a direct replacement.
Spek
Drops an audio file on the window and draws its spectrogram, so you can see where the quality really stops.
Sonic Visualiser
Inspect the contents of audio files through waveform and analysis displays.
FabFilter Pro-Q
Equalize audio in a production host with FabFilter's Pro-Q plug-in.
Toneboosters Equalizer
Affordable analog-modeled parametric EQ plugin with a spectrum view.
HOFA IQ-Series EQ V3
Dynamic equalizer plugin with per-band compression and spectrum analysis.
Steinberg WaveLab
Mastering suite with phase scope, multimeter and loudness analysis tools.