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This book discusses some of the analysis concepts associated with performing sound level measurements and how you can use the Sound Level VIs to perform sound level measurements. You can combine different sound level measurements and use them simultaneously to provide flexibility with acoustic measurements.

Use the Sound Level Express VI to develop and configure the following sound level measurements interactively:

• L_eq
• Running L_eq
• Peak
• Exponential average

You also can use the Sound Level Express VI to export the A-, B-, or C-weighted signal.

When combined with any National Instruments DSA device, the appropriate microphone, and proper signal conditioning, the Sound Level VIs are compliant with the IS0/IEC 61672-1:2002 standard.