NTi Audio Acoustilyzer AL1 - Manual (Page 31)

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X-Axis: Logarithmic scale fixed to 20 Hz - 20kHz
Y-Axis: The scaling of the spectrum’s Y-axis (sensitivity) can be adjusted
manually.
• Select the displayed upper value of Y-axis and press the enter key.
• Use the up/down keys to scroll the displayed level along the Y-axis
and the left/right keys zoom in/out the Y-axis, e.g. to alter the display
resolution.