SpikeInterface / SpikeInterface/spikeinterface

`TdtRecordingExtractor` not reading signal streams correctly for multi-block experiment

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Description

This experiment from @JBFord has 3 signal streams with mult-block (10 blocks) setup, the reader TdtRawIO can parse the header but TdtRecordingExtractor returns empty list of times and traces, sampling frequency is 1, the data type is int.
The data for one of the blocks look like https://gin.g-node.org/NeuralEnsemble/ephy_testing_data/src/master/tdt/aep_05/Block-1 but also have multiple SEV files like in https://gin.g-node.org/NeuralEnsemble/ephy_testing_data/src/master/tdt/dataset_1_single_block.

@JuliaSprenger have you seen similar before with multiple data streams and multiple block example?

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Research direction

Start with the TdtRecordingExtractor and TdtRawIO entry points, then reproduce the issue using the linked multi-block experiment and SEV-file examples. Check why a three-stream, ten-block recording produces empty times and traces while reporting sampling frequency 1 and integer data. Done means the extractor returns the expected times and traces for the multi-block, multi-stream data.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
data
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
38/100

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