# 1 what
A simple XY-scope using JACK for audio input and OpenGL for video output.
Now also an XY control surface: the mouse cursor position is output to JACK. Note: loud, low frequency, with strong DC offsets: not for audio device.
# 2 but
There are other software oscilloscopes supporting JACK, but I couldn’t find one with XY mode.
# 3 get
git clone https://code.mathr.co.uk/exwhyscope.git
# 4 build
# 5 run
./exwhyscope jack_connect system:capture_1 exwhyscope:in_1_x jack_connect system:capture_2 exwhyscope:in_1_y jack_connect exwhyscope:out_x synth:in_cv_1 jack_connect exwhyscope:out_y synth:in_cv_2
# 6 how
You can use it as a regular oscilloscope by putting a timebase signal in to an X input. All inputs are assumed to be normalized in the range -1 to +1.
# 7 config
The window size, JACK client name, and input channels (8 XY pairs in different programmer colours) are hardcoded for now. Edit the source code and recompile to change them.
# 8 legal
Copyright (C) 2019,2023 Claude Heiland-Allen