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Doppler Effect Acoustic & Wave Frequency Shift Calculator

Calculate observed pitch and frequency shift for moving sound sources or observers approaching or receding at arbitrary velocities.

Inputs used by this tool

Enter values in the interactive controls when the page loads. The result depends on the assumptions and units shown for each field.

Input type: number
Input type: number
Input type: number
Input type: select

Data handling varies by tool. Review its notes and the Privacy Policy before entering sensitive information.