[Eeglablist] Down Sampling Issue

[Arnaud Delorme]

Hi Jazmin,

Would you mind creating an issue on Gibhub?

https://urldefense.com/v3/__https://github.com/sccn/eeglab/issues__;!!Mih3wA!CwXJDMKtmolk9XuWm2X8XxM-sl1xpi34urVHYYCBzKgPBPJe-sowG6Xd1d4lk1tbH0rAL6tYaJdVCr5UQxMiOyqT$ 

Arno

> On May 23, 2023, at 12:16 AM, Andreas Widmann via eeglablist <eeglablist at sccn.ucsd.edu> wrote:
> 
> Hi Jazmin,
> 
>> Error using upfirdn>validateinput (line 129)
>> The product of the downsample factor Q and the upsample factor P must be less than 2^31.
> This is unexpected for downsampling from 512 to 128 Hz. p and q should be 1 and 4. Is the current sampling rate possibly non-integer for some reason?
> 
>> Although I have not faced any issues with this previously, I am currently receiving the following error on my present datasets:
> Do I understand correctly that the problem affects *all* your recent datasets? Does resampling still work on your older datasets (where you didn't perceive issues previously)?
> 
> Could you please provide:
> * EEGLAB and MATLAB versions
> * a short sample dataset demonstrating the problem
> * command line code in case you use CLI or script
> * confirm that you have MATLAB signal processing toolbox installed
> 
> Best,
> Andreas
> 
>> Am 22.05.2023 um 23:33 schrieb Jazmin Morrone via eeglablist <eeglablist at sccn.ucsd.edu>:
>> 
>> Hello,
>> 
>> 
>> I am currently preprocessing data in EEGLab, whereby I am resampling from 512 Hz to 128 Hz. Although I have not faced any issues with this previously, I am currently receiving the following error on my present datasets:
>> 
>> Error using upfirdn>validateinput (line 129)
>> The product of the downsample factor Q and the upsample factor P must be less than 2^31.
>> 
>> 
>> As I have attempted various methods to navigate this without any luck (e.g., up-sampling, filtering, then down-sampling), any assistance would be greatly appreciated!
>> 
>> Kind regards,
>> 
>> Jazmin Morrone
>> 
>> MRes - Cognitive Neuroscience
>> 
>> Lecturer and Technical Services
>> 
>> Faculty of Sports Allied Health and Performance Sciences
>> 
>> St Mary's University
>> 
>> Waldegrave Road
>> 
>> Twickenham
>> 
>> TW1 4SX
>> 
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