Spectrum Analyzer

Spectrum Analyzer is a professional real-time FFT spectrum analyzer with comprehensive metering, completely free.

Insert Spectrum Analyzer on any track or bus to see a detailed frequency spectrum, loudness readings, true peak levels, and stereo correlation at a glance. All settings are accessible via the gear icon, keeping the main display clean and maximized.

Features

• FFT Spectrum Display: Real-time frequency analysis with selectable resolution (2048, 4096, or 8192 samples). Adjustable smoothing, slope compensation, and display range. Optional peak hold overlay with configurable decay rate.
• LUFS Loudness Metering: EBU R128 compliant loudness metering with Momentary (400ms), Short-term (3s), Integrated (gated), and Loudness Range (LRA) readings. Integrated LUFS is highlighted for quick reference.
• True Peak Detection: ITU-R BS.1770-4 compliant true peak detection with 4x oversampling. Visual clip indicator shows red when levels exceed 0 dBTP.
• Stereo Correlation: Visual correlation meter ranging from -1 (out of phase) to +1 (mono). Color-coded bar (green/yellow/red) for instant stereo field assessment.
• Channel Routing: Analyze in Stereo, Mono, Mid, or Side modes directly from the header dropdown.