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.
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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.