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67Compressor User Guide
• Best (Motion Compensated): Uses optical flow to interpolate using areas of
movement between neighboring frames to produce high-quality output.
• Reverse Telecine: Removes the extra fields added during the telecine process to
convert the film’s 24 fps to NTSC’s 29.97 fps. Choosing this item disables all the
other Quality controls. See Use reverse telecine in Compressor.
• Adaptive details: Select this checkbox to use advanced image analysis to distinguish
between noise and edge areas during output.
• Anti-aliasing level: Sets the softness level in the output image. To increase softness,
double-click the value and then manually enter a new value, or drag the slider to the
right. This property improves the quality of conversions when you’re scaling media up.
For example, when transcoding SD video to HD, anti-aliasing smooths jagged edges
that might appear in the image.
• Details level: Sets the sharpness of detail in the output image. You can use this
control to add detail back to an image being enlarged. Double-click the value and then
manually enter a new value, or drag the slider to set the value. Unlike other sharpening
operations, the “Details level” property distinguishes between noise and feature details,
and generally doesn’t increase unwanted grain. Increasing this value may introduce
jagged edges, however, which can be eliminated by increasing the “Anti-aliasing
level” slider.
• Dithering: When selected, adds a certain type of noise to images to prevent large-scale
distracting patterns such as color banding. If your image has excessive noise after
rendering, deselect this checkbox.
Video effects
For a list of available video effects in Compressor, and instructions on how to add a video
effect to a setting, see Add and remove effects in Compressor.
Audio properties
• Channel layout: Use this pop-up menu to set the audio channel layout.
• Sample rate: The number of times per second that music waveforms (samples) are
captured digitally. The higher the sample rate, the higher the audio quality and the
larger the file size. For all MFX settings, this value is locked at 48 kHz.
• Sample size: Use this pop-up menu to set the sample size of the audio signal.
• Channels as: Use this pop-up menu to set the distribution of audio channels. There are
two options:
• Mono tracks: The exported file uses a separate track for each audio channel.
• Multitrack: The exported file combines all audio channels into a single track.
Note: Not all compression settings provide both options.
Audio effects
For a list of available audio effects in Compressor, and for instructions on how to add an
audio effect to a setting, see Add and remove effects in Compressor.