ISDN
- name:
- ISDN
- git-url:
- https://github.com/voc/voctomix/tree/isdn
- project-description:
- Internet Streaming Digital Node
- project-owner:
- derpeter, lukas
- project-member:
- danimo, derchris, derpeter, lukas
- project-statu:
- running
Concept
Internet Streaming Digital Node
The idea is to build a “as low cost as possible” device a speaker can use to remotely present. While there would be cheaper options for some of the components we also want to use off the shelf components that are world wide available or at least interchangeable. The idea of this project was born after first test with the RPI HQ Camera which provides a great quality / price ratio. The basic features, anticipated for the first revision are:
Camera to record the presenter
HDMI Input to capture slides / audio from a PC / Laptop
Headset for audio recording and intercom
Display to show the current image
Touchscreen for minima user interface
USB Storage to record locally
Stream via RTMP or SRT
Nice to have
-> Software
Reconfiguration using qr-codes (e.g. using gst zbar plugin)
Tiny customizable / distributable firmware images
Integrated back-channel for audio and video
Using the back-channel to implement talks with multiple speakers
Integration into existing conference tools to allow audience participation (maybe serverside, to reduce locally required bandwidth and computing power)
Whiteboard and/or Pointer functionality
Quick-“Screen blanking / Audio muting” functionality for instant privacy
Allow for PDF-slides instead of using HDMI-Input (premium: store all information so it could automatically be re-rendered with the original pdf later on, for higher quality)
-> Hardware
More stable and overall better case with less loose wires (especially the camera-flex…)
Integrating camera into a ring-light
Decouple camera+display to reduce camera wiggle when using the touchscreen
Solve power delivery issues for ring-light
Reduce desk-footprint
Better solution for audio (very cheap headsets are not the yellow from the egg)
Better options for wireless networking (integrated wifi on the pi4 is not-that-great and useless if bluetooth is also used)
Bluetooth remote for quick scene switches
Easier to build
beta 1
beta 2
Pre-Final
Resources
Research
BOM
angekommen
Raspberry Pi 4 (4GB)
Raspberry Pi HQ Kamera 6mm Objektiv
Raspberry Pi HQ Kamera
Raspberry Pi USB-C Netzteil
Raspberry Pi microHDMI Adapter (für Fallback-Setup als reine Kamera)
Mini-Kühlkörper (ohne Lüfter)
Micso SD (SanDisk Ultra 16GB)
HDMI Kabel (2m)
Offizielles Raspberry Pi 7“ Touchscreen Dingsie
Komisches Plastikgehäuse für Pi+Touchscreen
USB HDMI Capture Nubsies
3/8” auf 1/4“ adapter nubsies zum stativ-montieren des display-gehäuses
bestellt (warte auf lieferung)
Stativ + Ringlicht
Kugelkopf für Kamera
1/4” muttern (fehlkauf…)
USB Headset
sonstiges
brauchen wir noch
brauchen wir eventuell
Hardware
(copy from BOM when final)
Werkzeug
Das ist eine Packliste an Dingen, die wir zum zusammenbauen vermutlich benötigen werden.
Software
Voctomix2 + minimal gui (TBD)
mumble client headless (stb)
raspiOS 32bit (64bit muss man mal testen ob cam und encoder tut)
openvpn client (ggf 2. openvpn VM oder aber auch wireguard aufsetzen das die nciht in unserm management netz hängen)
ssh
Planning Board
Packliste
Paketmaße: 30x27x20 (min. LxBxH in cm)
Raspberry Pi
Audio
Externer Anschluss
HDMI-Kabel
Netzwerk-Kabel
Licht
Anderes
Naming Scheme
Helium
Lithium
Beryllium
Boron
Carbon
Nitrogen
Oxygen
Fluorine
Neon
Sodium
Magnesium
Aluminum
Silicon
Phosphorus
Sulfur
Chlorine
Argon
Potassium
Calcium
Hydrogen
Titanium
Vanadium
Chromium
Manganese
Iron
Cobalt
Nickel
Copper
Zinc
Gallium