Soft-db I-Track User guide Uživatelský manuál stáhnout pdf (Strana 21)

6.2.4 Advanced

The advanced parameters can be adjusted in this interface.

Delta t

The Delta t value sets the time interval between each acquired point. Therefore, the time signal

equivalent for this measurement point will be averaged over this time interval. As an example, a

0,125 s time interval means that 8 points per seconds will be acquired and each of them will

integrate the time signal on a 1/8 s duration.

When FFT is selected, an overlap of 66.6% is applied as a result of the Hanning windowing.

Therefore, a time interval of 0,125 s means that 24 points per second will be acquired and each of

them will integrate the time signal on a 1/8 s duration. Each point averaging period will overlap the

previous and next averaging period by 33.3%.

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Soft-db I-Track User guide Uživatelský manuál Strana 21