muse-lsl uses time() as a timestamp, rather than LSL time?

[DominiqueMakowski]

Hi. I have a Muse-2 system and I am trying to record signals synchronized with BITalino physiological signals via LSL.

Unfortunately, despite ticking "synchronize" in LabRecorder, the timestamps are very different in the resulting xdf:

• Stream from muse-lsl:

{'info': defaultdict(list,
             {'first_timestamp': ['1688462154.307189'],
              'last_timestamp': ['1688462162.287789'],
              'sample_count': ['416'],
              'clock_offsets': [defaultdict(list,
                           {'offset': [defaultdict(list,
                                         {'time': ['71365.49933895'],
                                          'value': ['-4.249995981808752e-06']}),
                             defaultdict(list,
                                         {'time': ['71370.5003176'],
                                          'value': ['-8.900002285372466e-06']})]})]})}

• Stream from pylsl / LabRecorder:

{'info': defaultdict(list,
             {'first_timestamp': ['71359.94191930001'],
              'last_timestamp': ['71367.8835576'],
              'sample_count': ['8095'],
              'clock_offsets': [defaultdict(list,
                           {'offset': [defaultdict(list,
                                         {'time': ['71365.49836495001'],
                                          'value': ['-1.665000309003517e-05']}),
                             defaultdict(list,
                                         {'time': ['71370.49929815'],
                                          'value': ['-7.049995474517345e-06']})]})]})}

As far as I understood, muse-lsl provides unix time (number of seconds since 1970) and pylsl since the computer is on. How can we synchronize these two streams?

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