Stream times are not synchronized

[Matthew910818]

Hi, I have tried to plot the channel data through EEGLAB, but however, the event markers are all at time = 0.
The data was EEG data from Muse2 Headband and the events were from python (pylsl) as a marker stream.
This is the python code :

import serial
from pylsl import StreamInfo, StreamOutlet, local_clock

serial_port = 'COM4'
baud_rate = 9600
ser = serial.Serial(serial_port, baud_rate)

info = StreamInfo('MyMarkerStream', 'Markers', 1, 0, 'string', 'myuid34234')
outlet = StreamOutlet(info)

while True:
    try:
        line = ser.readline().decode('utf-8').strip()
        timestamp = local_clock()
        print(type([line]))
        outlet.push_sample([line], timestamp)
        print(f"Sent data: {line} hz at time: {timestamp}")
    except KeyboardInterrupt:
        print("Exiting...")
        ser.close()
        break
    except Exception as e:
        print(f"An error occurred: {e}")

[cboulay]

Please put triple-backticks before and after your code block so it is more legible.

But, as I mentioned in xdf-modules/xdf-Matlab#18, there's no problem with your Python code. The problem is either in how you're loading the data into EEGLAB or it's originating from the Muse source. I think the latter is more likely.

Can you please provide details about how you're getting an LSL stream from your Muse device?

[Matthew910818]

Hi, I installed Muse LSL from this website ( https://github.com/alexandrebarachant/muse-lsl ), and type "muselsl stream" in the command line to start streaming.