How to read out decibels from default audio input device?

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  • cpal

    Cross-platform audio I/O library in pure Rust

    With https://github.com/RustAudio/cpal you can access the microphone in a cross platform way, but you’ll get values of range [-1,1] out only. To calculate absolute decibels you would need to calibrate for your specific microphone with a known source.

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