Oscope Frequently Asked Questions

This issue occurs when calibration sound pressure levels without a function to set a 0 dB reference during unit calibration.

The data represents the magnitude obtained by dividing the amplitude of the time waveform by 2.0 E-5.
The 0dB reference value for sound pressure level, 20 μPa (2.0 E-5), is reflected in the waveform itself.

In Oscope, if the waveform signal type is sound, the 0 dB reference value is automatically set to 2.0E-5.
As a result, the sound pressure level becomes 93.98 dB higher than the original value.

The procedure for handling this is as follows:
You can change it in the "Channel Settings" under "Data Editing" in the menu.

Unit name: Pa
Signal type: Sound pressure level
Calculate and reset the EU/1 value by multiplying it by 2.0E-5.