The Domesday Duplicator (DdD) is a USB 3.0 hardware solution originally built for capturing LaserDiscs RF at 40msps 10-bit.
Caution
The DdD is also suitable for use capturing many other single channel FM RF based formats, such as Video8/Hi8 & Betamax NTSC.
However VHS, Betamax PAL and other formats require multible ADC channels for Video RF & HiFi audio (Also Baseband or Linear audio) please look at the Clockgen Mod & the new MISRC for this as the DdD only has a single ADC channel.
The DdD documentation originally lived on Domesday86.com project pages but is now moved entirely onto GitHub.
0000 is 1-2-3-4 dips, In orientation to bottom numbers.
up is 1 and down is 0
All selected in this up position is 1111 or 2.02 Minimum Gain When dip’s 2-3-4 are down it's 1000 this is the maximum gain of 8.5, the table below shows all possible positions.
Configuration Switch Position Gain 15 1111 2.02 7 0111 2.17 11 1011 2.27 13 1101 2.45 3 0011 2.54 14 1110 2.59 5 0101 2.79 6 0110 3.02 9 1001 3.04 10 1010 3.34 1 0001 3.8 12 1100 4 2 0010 4.4 4 0100 6 8 1000 8.5The software is a GUI based capture tool, with a serial control interface for LaserDisc players.
Windows Build / Ubuntu 22.04 Build
Tip
Enable RMS Measurement to have a live readout.
Enable stop captures on sequence mistmach if your seeing dropped samples with your setup.
Dark mode on windows can be done via:
DomesdayDuplicator.exe --style fusion
For Ubuntu 20.2 & Linux Mint 22.3
Install Dependency's
sudo apt install --no-install-recommends git cmake libgl-dev qt6-base-dev libqt6serialport6-dev libusb-1.0-0-dev qt6-multimedia-dev build-essential
&
sudo apt install libqt5serialport5-dev
Download The Software
mkdir ~/github
cd ~/github
git clone https://github.com/simoninns/DomesdayDuplicator
Build The Software
cd ~/github/DomesdayDuplicator/Linux-Application
sudo cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo .
sudo make -j8
sudo make install
USB Permissions
Make a file called called 40-domesdayduplicator.rules inside of /etc/udev/rules.d directory after opening it as a root user.
# 1d50:603b - Domesday Duplicator
SUBSYSTEM=="usb", ATTRS{idVendor}=="1d50", ATTRS{idProduct}=="603b", MODE="0666"
Reload Rules
sudo udevadm control --reload-rules
Lastly take ownership of the files directly as a user
Replace USER with your local username.
sudo chown -R USER ~/github/DomesdayDuplicator
Then run the DdD App
If you get Segmentation fault (core dumped) try using:
sudo strace DomesdayDuplicator
sudo xdg-icon-resource install --size 256 --novendor ~/github/DomesdayDuplicator/Linux-Application/DomesdayDuplicator/Graphics/ApplicationIcon/DomesdayDuplicator_256x256.png
Desktop File (App Icon Fix)
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