FIR module does not respond to length changes

6 posts / 0 new

Thu, 03/10/2022
1:14pm

PabloFH

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FIR module does not respond to length changes

Hi,

In implementing a 256-taps FIR filter I set an FIR module that initiates with 31 taps by default.

When I tried to change the length to 256 taps, the number of taps is updated but not the array of coefficients. That is, if after setting the number of taps to 256 coeffs I try to load coefficients from a csv file AWE keeps truncating the filter to 31 taps. Please note that I also tried to load the awd file and update the coeffs using the MATLAB API and while the procedure did not throw any error I could still see that the FIR filters contains only the first 31 taps.

I have enclosed a picture below.

Am i missing something?

Thanks.

Pablo

Thu, 03/10/2022
1:52pm

DSPC Michael

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Hi Pablo,

Which version of Designer are you using?

This bug was recently reported on the forum for Designer 8.C.1.3.D: https://dspconcepts.com/forums/feature-requests-and-bug-reports/3911-can...

Our platform development team has already been notified and has prepared a bug fix for the next release of Designer.

Thanks,

Michael

Thu, 03/10/2022
3:06pm

PabloFH

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(Reply to #2) #3

Hey Michael,

That answers my question. I am using 8.C.1.3.D. When should we expect the next release?

Thanks.

Pablo

Thu, 03/10/2022
6:08pm

DSPC Michael

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Hi Pablo,

Our platform development team is currently targeting to make a new public release no later than end of March.

Thanks,

Michael

Fri, 03/11/2022
12:44pm

PabloFH

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Hi Michael,

It looks like there are multiple issues with 8.C.1.3.D. When trying to use the biquadCascade module I run into similar issues. I update the number of stages by the coefficient array does not update accordingly.

Thanks.

Pablo

Fri, 03/11/2022
7:54pm

DSPC Michael

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Hi Pablo,

Let me email you on the side about this.

Thanks,

Michael