Length of recorded data [ms]

Select the block size from the list, or type in the desired value in milliseconds.

The values available in the list utilize the fastest FFT algorithm. If you are using FFT for post-processing, it is therefore recommended that you select a predefined block size from the list and don’t type your own value.

Note: The block size also determines the frequency resolution of the frequency slider. It also determines the update speed when the frequency slider is moved. For more information, see the Frequency section above.