Minilyzer ML1 User Manual
Minilyzer ML1 User Manual
Minilyzer ML1 User Manual
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Sound Pressure Level<br />
In the LEVEL SPL mode the <strong>Minilyzer</strong> measures the integratedaveraging<br />
level over time, the actual, minimum and maximum sound<br />
pressure level.<br />
NOTES • For this function a self powered microphone is<br />
required. NTi Audio does recommend to use the<br />
accessory MiniSPL (for details see Accessories).<br />
• Prior the first measurement the <strong>Minilyzer</strong> has to<br />
be calibrated to the microphone specifications.<br />
As default the <strong>ML1</strong> is calibrated according the<br />
Minispl.<br />
• No phantom power is available on the XLR-input.<br />
a. Sound Pressure Level Panel<br />
Calibration<br />
Minimum,<br />
Maximum or<br />
Actual SPL<br />
Measurement Functions<br />
Pause Clock<br />
SPL Bargraph with manual ranging<br />
Fig 3.3 Sound Pressure Level Panel<br />
20<br />
Equivalent<br />
Continious<br />
Sound<br />
Pressure<br />
Level<br />
Time<br />
Weighting<br />
To enter the LEVEL SPL mode (Fig 3.3), select LEVEL -> SPL in the<br />
measurement functions submenu.<br />
For most of the <strong>ML1</strong> applications, the sound pressure level<br />
measurements require the use of the A-weighting filter. To prevent<br />
wrong filter settings, causing wrong non-usable test results, the default<br />
filter setting of the “LEVEL->SPL” mode is A-weighting (A-WTD).<br />
Note: Each time the LEVEL SPL mode is selected the<br />
A-weighting filter is pre-set by default.
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