Sound pressure meter running on STM32L476-DISCOVERY board
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Updated
Jan 12, 2025 - C
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spl-meter
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Free, private online sound level meter — measure noise in decibels (dBA, LAeq, A/C/Z) right in your browser. 8 languages, keyboard-first, no app.
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Updated
Jun 16, 2026 - TypeScript
A web-based interface for the Tondaj SL-814 sound level meter. Connects via USB-to-serial adapter and displays real-time decibel readings with a smooth animated VU meter visualization.
microphone acoustics decibel noise-monitoring sound-level-meter spl-meter audio-measurement db-meter
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Updated
Apr 19, 2026 - HTML
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