Select a region of a media file for playback and preview it before it goes live.

The playback range selection allows the definition of a region of a media file which will be played back when its source goes live in a layer.

The playback range can be previewed which allows for playback of a media file outside of mimoLive’s video and audio pipelines. Previewing is also helpful when screening unknown source material in a live situation such as a live event.

Accessing the Media File Source Settings

Open the Media File Source settings popover by clicking the action button in the preview image of the Media File Source. The popover looks different for video files and audio files:

  • For video files the popover offers a preview that can be clicked on to preview the current playback selection. Beneath the preview is the thumbnail strip that contains a series of video frames taken from the media file at periodic intervals to make selection and playhead positioning easier.
  • For audio files the popover contains a waveform preview preceded by a button to start and pause playback.

Selecting the Playback Range

The playback range selection can be set in different ways:

  • Dragging of the left and right selection handles
  • Click-and-dragging the center of the jog wheels
  • Clicking the left or right side of the jog wheels (allows selection with frame-precision)
  • Entering a time code into the number boxes
  • For video files, ***hh:mm:ss:ff*** where frames run from 0 to the media file’s frame rate. For example, at a frame rate of 30 FPS, time code frames would run from 0 to 29. The frame rate can be found in the popover title.
  • For audio files, *hh:mm:ss.mss*** where milliseconds run from 0 to 999. **Note the “.” instead of”:” between seconds and milliseconds.

Previewing the Playback Range

Video files can be previewed by clicking the preview. Clicking the preview again pauses the preview playback.

Audio files can be previewed by clicking the Play button in front of the waveform display.

During playback the playhead can be moved freely around in the thumbnail strip or waveform preview to change the current playback position. The playhead can also be moved when playback is paused. Playback will then resume from the playhead position.

Audio Monitoring

If the media file –like most movie files and virtually all audio files– contains an audio track, audio can be monitored through the Preview Audio Device. If “No Device” is selected or if the volume is turned down, no audio will be played out.

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