FAQ

Let’s Clear Up Some Things About FFT…

Part 1 of 2: The basics

The "Fast Fourier Transformation" (FFT) is an important measurement method in science of audio and acoustics measurement. It converts a signal into individual spectral components and thereby provides frequency information about the signal. FFTs are used for fault analysis, quality control, and condition monitoring of machines or systems. This article explains how an FFT works, the relevant parameters and their effects on the measurement result.

時間重み付け特性Fast, Slow, Impulse について

「歪み」測定に関する考察

サウンドレベル測定の周波数重み付け特性

How are Percentile Statistics measured?

Can I perform type-approved measurements with the XL2 and an attached microphone?

XL2は音圧レベル測定後、他の演算値をレポート出力できることをご存知ですか?

Operate the measurement microphones with 24V phantom power?

Is the XL2 a type approved sound level meter?

How can I convert my XL2 into a Type Approved XL2-TA?

12