Pyle PRJ3D99TU Manual page 37

Selecting the
Selecting Selecting Selecting the the aspect the
The "aspect ratio" is the ratio of the image width to the image height.
Most analog TV signals and computers are in 4:3 ratio and DVDs are
usually in 16:9 ratio.
With the advent of digital signal processing, digital display devices like
this projector can dynamically stretch and scale the image output to a
different aspect than that of the image input source. Images can be
stretched in a linear manner so the whole of the image is stretched
equally, or non-linearly, which distorts the image.
You can change the projected image ratio (according to your source
signal) by using the Img Adj > Image size OSD menu. Select an aspect
ratio to suit the format of the video signal and your display
aspect ratio
aspect ratio aspect ratio ratio
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