Time frequency analysis, morlet wavelet error message

Bugs
1

Hi there, I'm trying to do a time-frequency analysis using morlet wavelet option and it keeps generating error messages. The same dataset was used in a time-frequency analysis a month ago and everything was fine then. I'm not sure if the error was due to mistakes on my part or is it a bug, but I attached a screenshot here.

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Thanks!

Best,
Victoria

2

Hi Victoria,

I have run some tests here and everything seems to be working fine.
Which are Morlet wavelet options you're using for the analysis?

Best,
Raymundo

3

Hi there,

I used the Frequency ->Time-Frequency(Morlet wavelets). I apply this step to a minimum-norm source data, and the error appeared.

Best,
Victoria

4

I meant the parameters that are shown when you click the [Edit...] button in Process options.
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5

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Sorry I misunderstood earlier, it is like this.

6

Thanks
What's your version of Brainstorm?
Does the error occur for every file?

7

Yes, it occurs to all my source files.
And my version is brainstorm_210202, I believe it's Brainstorm 3, but not sure.
Thanks!

Best,
Victoria

8

Can you update Brainstorm to the most recent version (17-Jul-2021)?

9

Hi there,
The problem persists after update to the latest version.

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10

Can you generate simulated signals, and do the TF analysis?

  1. With no files in Process1, click on Run, then Simulate > Simulate generic signals, and these parameters.
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11

yes, I can simulate the signals. But I still cannot run TF morlet wavelet, although if I change the frequency definition parameter to Log, it can generate result, but not the linear function.

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12

Got it!
It's a typo in the Morlet wavelet options, the second colon (:) is missing

It says: 1:1 55
It should say 1:1:55

13

That must be it! Thank you so much for your help!