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SNR and Noise Floor

How to Use

  • Set Signal Level (dBFS) to control signal strength
  • Set Noise Floor to control the background noise level
  • Adjust Signal Frequency to move the signal across the spectrum
  • Control the number of Harmonics to add distortion peaks

What to Observe

  • SNR (Signal-to-Noise Ratio) = Signal Level − Noise Floor in dB
  • Higher SNR (green) means cleaner audio; low SNR (red) means noise dominates
  • Harmonics appear at multiples of the signal frequency — they represent distortion
  • The noise floor is the lowest signal level the system can detect
  • A professional audio system typically targets SNR > 90 dB; consumer audio aims for > 60 dB