The HP8903 is a remote controllable audio analyser. The device is old but thus available for sane prices. The scripts mentioned here currently allow you to obtain a frequency/level measurement and create a plot like the following.
The scripts are not yet cleaned up and this is the first version that is more of a proof-of-concept. I will try to add other measurement types.
Integrated webserver to do remote measurements (very basic but functional UI) - allowing CSV download.
Do the measurement witha Prologix GPIB interface, configured to provide the connection with a serial port.
Depending on the condition of your device, it may be sensible to do a loop-back measurement and
use this as a calibration reference while plotting. See option --calibration-file to
use this feature.
You need Python 3, pyserial, pyyaml, matplotlib, argparse, math and csv libraries.
pip3 install pyserial pyyaml matplotlib argparse math csv pyserial cherrypy fasteners
measure.py is statically configured through config.yml (Serial port, BAUD rate). Measurement configuration is done via command line arguments.
graph.py has no internal configuration, customize it using command line arguments.
webserver.py can simply be called and will start a publicly available webserver on Port 8080. This component uses
the other two python files, so be sure that config.yml contains sensible settings.
The parameter --help will give you details about the command line arguments.