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---
title: Buildup Plan
---
See <https://github.com/voc/checklists/blob/main/source/buildup.pdf>

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---
title: Overview
order: 0
---
See <https://c3voc.de/wiki/hardware:room-case-2.0>

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---
title: Tips and Tricks
order: 99
---
Something's not working and you want to know how to fix it? Hopefully this page got you covered.
## Preface
As a general rule: **don't disassemble any of the modules, ever!** This also applies to experienced VOC people!
Everything which needs to be accessed can be reached without violence, especially in the lectern module.
## Lecture Module
### No Signal at Projector
- Try another HDMI cable
- Try to use the projector without the lectern module
- If nothing helps, you can extend the tray all the way and use different ports
### No Audio from the Speaker Laptop
- Turn on the correct audio source on the ATEM mini:
* 3.5mm jack: Turn on "MIC 1"
* HDMI audio: Turn on input 1 ("ON" button is shining red or "AFV" is enabled)
- Other inputs should be off when not needed
![](img/lectern-audio-comp.jpeg)
### Noise/ Humming from the Speaker Laptop/ Lectern Module
- Turn off the 3.5mm jack input "MIC 1" on the ATEM mini ![](img/lectern-audio-comp.jpeg)
### Fully Extend the Tray
The lectern module's tray has some cable ties as stoppers which prevent it to be fully extended.
If the tray is pulled out too much, the cables to the I/O panel will probably get dislodged and **will cram up between rack tray and network switch**!
So do not pull out the tray more than needed!
In case you need to reach the additional ports (HDMI and secondary SDI) of the UpDownCross, you can get over the stoppers with these steps:
- Pull tray out until stoppers are reached
- Place your hands with 4 fingers below the tray and the thumb on top ![](img/lectern-tray-stoppers_hands-comp.jpeg)
- Press up next to the cable tie stopper until it goes past the I/O panel below ![](img/lectern-tray-stoppers-comp.jpeg)

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title: "A/V-Tech: Daily Stage Bootup"
---
See: <https://github.com/voc/checklists/blob/main/source/stage_bootup.pdf>

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title: "A/V-Tech: Talk Checklist"
---
See: <https://github.com/voc/checklists/blob/main/source/talk.pdf>

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title: Camera Angel
---
See

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title: Video Mixer Angel
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TODO:

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title: FAQ
---
## I want to be a Camera/ Video Mixer Operator
TODO: Come to the introduction meeting which will be announced in the Engelsystem of the event.
## I Want to Help With Buildup
TODO: Just come to an event and talk to us.

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# Home
Welcome to the [c3voc](https://c3voc.de) lecture hall operations handbook.
This site is intended for our volunteers (angels) during daily operations, as well as people building up our lecture hall setup.
## For A/V Angels
TODO: We have checklists with the most important items from the [angel introduction](https://github.com/voc/angel-introduction) lecture.
## For A/V Technicians
TODO: Checklists
## For Buildup
TODO: Hall setup

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title: "Tracker: Checking"
order: 2
---
Please refer to [the wiki](https://c3voc.de/wiki/c3tracker:checking) (for now).

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title: "Tracker: Cutting"
order: 1
---
Please refer to [the wiki](https://c3voc.de/wiki/c3tracker:cutting) (for now).

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---
title: "Tracker: Overview"
order: 0
---
The [CRS Ticket Trakcer](https://github.com/crs-tools/tracker) is the main tool which enables the c3voc to process so many videos during the duration of an event.
It's a web-application at https://tracker.c3voc.de which is managing all tasks to record, cut, encode and release a talk based on the event's schedule in the [schedule.xml](https://c3voc.de/wiki/schedule) format.
All automation at the c3voc is based on the schedule!
## How to Help Us
During an event, we may need help cutting and checking talks.
How urgently help is needed depends on how many people from the team are present and how much help we get for operating the halls.
There are two main kinds of help needed:
- Help with normal cutting and checking: You need a laptop and some headphones
- Help with broken talks: You need to know your way around in a video editor of your choice and ideally have experience in piecing together audio and video from different sources
Usually only 0-10% of the recordings need manual editing becuase of a broken recording or becuase something was shown which shouldn't be released.
As you may have guessed this work is quite labor-intensive and can take up to a few hours per talk to reach an state which can be released.
## Tasks
As mentioned before, we have a highly automated standard cutting workflow, but also a way to manually edit videos if needed.
### Normal Cutting
The normal process is mostly automated, but needs manual intervention to set the actual start and end of the talk.
See the [cutting](cutting.md) and [checking](checking.md) pages for a detailed descrption what needs to be done.
### Reparing Talks
To repair a recording, you need to fetch the source files from where they are stored (depends on the event's specific setup) and do your magic in the video editor of your choice.
Just make sure to render the output as 1920x1080px with 25 fps and no timecode track.
Remove a timecode track with ffmpeg using:
```shell
ffmpeg -i inputfile.ext -c:a copy -c:v copy -write_tmcd 0 outfile.ext
```

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title: "Tracker: Setup"
---
Please refer to [the wiki](https://c3voc.de/wiki/c3tracker:setup) (for now).