Troubleshooting - Videos

The video Video icon does not show against events that I know have video

Remember that you need to wait for video to be copied from your recorders to your network (where required) and then the video needs to be parsed (see Parse Video).

Solution: Check whether NEXUS can see the video files under Tools ‣ Video… (see Video…) and whether the videos have been parsed successfully (see Parse Video).

Expected videos are not playing back for events with ROV

Note that if your event has a survey set that is associated with an ROV, only videos with that ROV will be played back (see Video Playback).

Solution: Ensure the following:

  • Check whether NEXUS can see the required video files under Tools ‣ Video… (see Video…) and whether the videos have been parsed successfully (see Parse Video).

  • Ensure that the filename of all the expected videos contains the name of the ROV that is associated with the survey set of the selected event.

A video does not play on my machine, but does on another machine

This is likely a codec issue. NEXUS asks Windows Media Player to play the video within NEXUS’ video frame. Windows Media Player will only play video it understands. Note that many video file extensions are envelopes that can contain videos of a variety of formats: just because your PC can play one .avi file does not necessarily mean it can play another.

Solution: Install appropriate codec. Use GSpot, which is a long-standing reliable tool for checking codec details for a particular file. Run it on both a machine where the video file does play and a machine where the video file doesn’t play, if possible. Drag the video file into GSpot in each case. Click the ‘1’ and ‘2’ buttons near the bottom and compare output. (There are more than one set of ‘1’ and ‘2’ buttons — they’re all worth trying and comparing.) This may help you figure out which codec is required. If not, the Shark Codec pack is worth a try.

I’m having issues with the audio

NEXUS lets you choose which channels to play audio for. This is handy if multiple channels have identical audio recorded, but are played back slightly out of sync. If the filename specifies start time only down to the nearest second, two files could easily play 0.9 seconds out of sync. But it also allows you to disable audio from all channels, or disable audio from all channels that have audio recorded on them.

Solution: Try the following:

  • If you have too many channels playing audio, turn off audio for all but one using the Channels toolbar menu options on the Video pane of the INSPECTION screen, or by clicking the speaker icon on each channel to mute/unmute.

  • If you have no audio, ensure that audio is turned on in the Video pane.

  • Try unplugging and replugging your headset or external speakers if appropriate, as sometimes this makes Windows to route audio more correctly.

  • Check volume controls under the Windows system tray at the bottom right of your screen. Play audio from some other piece of software (for example, Windows Media Player, YouTube) to verify whether the problem is with the PC or with NEXUS.

When I play video for an event, multiple copies of a single video channel appear

This is likely because you have multiple copies of that file in one or the other or both video paths. For example, if your Global Video Path contained Folder1\\Video1.wmv and Folder2\\Video1.wmv (that is, two copies of the same file), or there is one copy of Video1.wmv in the Global Video Path and another in the Temporary Inspection Video Path, NEXUS will identify “both” files as being appropriate for the time range covered by that event, and will therefore display both.

Solution: Find and remove duplicates. The Windows Explorer search feature might help.