I've been working with EDF recordings for EEG and neuroscience projects and kept running into the same problem: most mature EDF tooling assumes Python or native software, while there are comparatively

Sorry for my confusion regarding your app language. When you said 'browser-app' I assumed you were using javascript or typescript. I now see your app is entirely Python based, so obviously those are t

Yes using Brainflow and your language of choice (Python, Java, etc.)

at brainflow.BoardShim.prepare_session(BoardShim.java:1347) at OpenBCI_GUI$BoardBrainFlow.initializeInternal(OpenBCI_GUI.java:2719) at OpenBCI_GUI$BoardGanglion.initializeInternal(OpenBCI_GUI

* Java environment has been updated.

Ok, I've identified an issue with the GUI OSC output for FFT. I've put in a fix along with some Javascript code that can run in a Max js object.

# # A fatal error has been detected by the Java Runtime Environment: # # EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007ffcc2bfc56c, pid=4916, tid=11172 # # JRE version: OpenJDK Runtime Environ

java.lang.NullPointerException

the java server is connected and the python window opens for a second but gives the following error:

OpenBCI GUI is written in the 'Processing' language, which is a superset of Java.

Have you some suggestion? (Is Openbci gui developed in Java?)

JavaScript, HTML, PHP for frontend and backend

java.lang.NullPointerException

java.lang.NullPointerException

java.lang.NullPointerException

at brainflow.BoardShim.start_stream(BoardShim.java:1437) at OpenBCI_GUI$BoardBrainFlow.startStreaming(OpenBCI_GUI.java:2764) at OpenBCI_GUI.startRunning(OpenBCI_GUI.java:934) at OpenBC

Java version also should not be the problem here.

What Java version do you have? When you go to Electrode Quality do you see that all electrodes have value 0.5 that doesnt change?

What Java version do you have? When you go to Electrode Quality do you see that all electrodes have value 0.5 that doesnt change?

https://brainflow.readthedocs.io/en/stable/Examples.html#java-eeg-metrics