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6 articles for Audio Visualizers · Audio Analysis

Music Frequencies Explained: See Bass, Mids and Highs Live
Every band from 20 Hz to 20 kHz, where each instrument sits, and how to see bass, mids and highs on a free browser visualizer. Read EQ colors like a DJ.

How to Read a Loudness Meter: LUFS in Plain Language
What LUFS actually measures, why it replaced RMS, and what momentary, short-term, integrated, true peak and LRA mean — explained on a free browser meter.

Level Livestream Audio in the Browser: No Second PC
The classic livestream loudness workflow needs a second machine and a capture app. Here's the same LUFS speech leveling done free, in one browser tab.

PSR, PLR and LRA Explained: How Dynamic Is Your Master?
Three numbers describe how squashed a track is — LRA, PLR and PSR. What each one measures, the PSR 8 crush threshold, and how to watch them live for free.

Spotify Loudness Normalization: What −14 LUFS Really Does
Spotify normalizes to −14 LUFS, but the boost is capped by true peak and turning down never clips. The real behaviour, and how to preview it before upload.

Streaming Loudness Targets: Every Platform, Sourced
Spotify, Apple Music, YouTube, Tidal and the rest: every platform's real playback numbers with a source class on each — plus a live loudness calculator.