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Encoder Settings

The Encoder Settings section let users specify the settings to be applied on an encodelist item. It is accesible by left clicking the Sub Menu icon next to the encodelist item name and then clicking on Settings. The results of these settings will be applied to the file once you press Back to the Encoder area and then transcode the item.

File settings#

File name#

Is the name assigned to the encoded item after transcoding. It can be modified either by double-clicking in the name box or by clicking the Edit icon.

File output folder#

Is the destination folder of the transcoded file. It can be modified by clicking the Folder icon. The default value of the destination folder is the one selected in the general settings encoder tab.

Video settings#

Match Source#

Match Source Button

This button will adjust both the video and audio settings to match those of the original file. Any user changes to the audio and video settings will be discarded when pressing th button.

AiM SubCodec#

Selection of the AiM SubCodec:

  • Super Stream - Highest quality image and best playback performance
  • Performance โ€“ Produces the smallest files but can suffer on complex imagery
  • Quality - Medium quality image, variable file size depending on content

Resolution Preset#

It is possible to choose the video resolution from a selection of standard formats. Selecting a preset will override any user width and height values.

Output Width#

User definable horizontal size in pixels.

Output Height#

User definable vertical size in pixels.

Width and Height values can be linked / unlinked by clicking on the Lock / Unlock icon.

  • When Lock icon is shown, Width and Height will always maintain relative size according to the aspect ratio of the Width and Height set as the lock is pressed - if one value is adjusted, the other will change accordingly.
  • When Unlock icon is shown, Width and Height can be individually set regardless of the resulting aspect ratio of the cropped area.

Frame Rate#

User definable frame rate in frames per second.

Preserve Alpha#

Ticking the box will include an Alpha Channel in the render. Adding an alpha channel will increase the file size by approximately 33%. An Alpha Channel may only be included in the exported file if the source file contains Alpha data.

Audio settings#

Encode Audio#

Ticking the box will include the specified number of audio channels in the exported file.

Sample Rate#

Sample rate can be set to either:

  • 44.1 kHz
  • 44.8 kHz

Channels#

The following channel configurations are supported:

  • Mono
  • Stereo
  • 5.1
  • 7.1

Note: Prism can only convert existing audio channels, it cannot alter the amount of channels in the source file.

Bit Depth#

Bit depth can be set between:

  • 8
  • 16
  • 24
  • 32

Note: The higher the bit rate, the greater the detail and dynamic range of the audio.

Trim Media#

To adjust trim points press the Trim Media button at the bottom of the section.

Trim Button

Trim values can be manually entered into both the Trim IN Point and Trim OUT Point boxes either by typing the value or using the arrow keys in the current fields.

The total duration of the exported clip will be calculated as the difference between Trim OUT Point and Trim IN Point.

*Note: The new duration may not exceed the duration of the source media and the Out Point will always have a higher millisecond value than the In Point.

Crop Video#

To set a crop area press the the Crop Video button at the bottom.

Crop Button

  • X and Y specifies the starting pixel for the top left corner of the cropping area to be drawn from.
  • Width and Height sets the size of the area to be cropped, starting from the specified X and Y values.

Note: It is not possible to crop the exported file beyond the width and height of the source file.

Width and Height values can be linked / unlinked by clicking on the lock / unlock icon.

  • When lock icon is shown Width and Height will always maintain relative size according to the current aspect ratio of the Width and Height. If one value is adjusted, the other will change accordingly.
  • When unlock icon is shown Width and Height can be individually set regardless of the resulting aspect ratio of the cropped area.
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