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Upsampling

 

I read files sampled at 1KHz, i would like to add some impulse read from a file sampled at 40 KHz. 
So i want to resample signals from  1 KHz to 40 KHz, add impulses and then generate the result.
The VI its attached.
 
Thanks in advance
 

Hi,

I read files sampled at 1KHz, i would like to add some impulse read from a file sampled at 40 KHz. So i want to resample signals from 1 KHz to 40 KHz, then add impulses and then generate the result.

 

The VI its attached. 

 

Thanks in advance for all the suggestions

 

Wasabi

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Message 1 of 4
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Hi,

Can you explain what is your problem with your application and/or VI??

thanks

Luca Gallo
Sales Engineer
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My problem is how to resample the signal at 40kHz. Then adding the impulse, and generate the sum at 40 kHz. 
In this operation i would like to avoid that "memory is full" because i have some file much longer than file 
i have attached. With this files (about 150 MB) I got the message "Not enough memory to complete this operation". 
Indeed I had thought of using the binary files and then resample them, but i don't find the way to read this
binary file.

 

My problem is how to resample the signal at 40kHz. Then adding the impulse, and generate the sum at 40 kHz. In this operation i would like to avoid that "memory is full" because i have some file much longer than file i have attached. With these files (about 150 MB) I got the message "Not enough memory to complete this operation".

I have these file also in binary format(.dat, .bin, .raw), but i don't find the way to read this binary file. Is a better way read binary files and then resample them?

 

thanks

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if I understood well, you should talk about interpolating the data rather than resampling.

I so, you should add your impulses to your original signal then interpolate the signal so you can get more samples.

 

 

Luca Gallo
Sales Engineer
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