Signal Processing & DSP

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Quantisation SNR

Best possible SNR (dB) of an ideal b-bit converter.

Formula

SNR \approx 6.02 b + 1.76

Variables

SNRSNR (dB)

bBit depth

Example

16-bit: SNR ≈ 98 dB

Did You Know?

This is why 16-bit CD audio hits ~96 dB dynamic range — the theoretical ceiling of the format.

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