SPAN
by Voxengo
Free real-time FFT spectrum analyzer with RMS, true peak and EBU R128 loudness metering.
SPAN shows a real-time FFT spectrum of whatever you put it on, with adjustable block size, smoothing and slope so you can read a mix or a single track the way you want. It also covers level metering (EBU R128, K-system), stereo correlation and true peak clipping detection, and handles mono, stereo and surround channel setups.
In action
Video plays from YouTube when started.
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