"read_openephys"with onebox ADC stream Error

[jialeren2024]

Spikeinterface 0.102.3. failed to load the timestamps use "read_openephys" with the OneBox-ADC stream, a Error occurred, that didn't happen in the old version: might be due to a mismatch between the stream name: 'OneBox-ADC_ADC' and the folder name:'OneBox-ADC'

a sample data for test:

2025-06-03_14-42-36.zip

[samuelgarcia]

Oups we have a missing import I guess.
Thanks for reporting this.
Lets fix this before the release.

[chrishalcrow]

Hello, there are two errors going on here:

1. The error in the error trace "cannot access local variable 'warnings' where it is not associated with a value"

This is very weird: there's an import of the warnings package at the top of the file, and that's been there for 3 years... I have no idea what's going on

2. (more important!) You can't open the timestamps.

As you rightly figured out, we currently assume that the oe_stream folder (where timestamps are kept) is named "whatever-comes-after-#-in-the-steam-name". In this case, OneBox-100.OneBox-ADC_ADC. But the sample data shows that it's equal to OneBox-100.OneBox-ADC. To fix this problem generally, we need more info on how OneBox is naming folders. Anyone know who to contact??

[alejoe91]

The warning issue has been fixed here already: #3980

Let's open an issue on the Open Ephys repo

[alejoe91]

Actually, this is an issue in NEO: https://github.com/NeuralEnsemble/python-neo/blob/master/neo/rawio/openephysbinaryrawio.py#L205-L217

We basically add the _ADC to the stream if the channel name has ADC in it. This is incompatible with OneBox, since the ADC has its own stream already.