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Sound Level Unit Converter

分贝换算声压级噪声监测音频工程

Convert across 3 acoustic level units: decibels, nepers and bels with exact logarithmic factors — for noise monitoring, audio engineering and environmental reports, fully local.

All processing is done locally in your browser. No data is uploaded.

How to Use

  • Paste any valid JSON, supports nesting, arrays and escapes
  • Click Beautify to auto indent and format
  • Click Minify to remove whitespace into one line
  • All operations run locally for privacy

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FAQ

Decibels vs bels?

1 bel = 10 dB; everyday acoustics use dB exclusively while bels appear mostly in textbooks.

What is a neper?

The neper (Np) is a natural-logarithm level unit where 1 Np ≈ 8.686 dB, common in transmission line theory.

Will my data be uploaded?

No, all conversions run locally in your browser.