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Kim Therkelsen (@KimT)


Re: Linear convolution using oversampled filterbank

Reply posted 2 months ago (08/16/2024)
Hello and thank you for your suggestions and comments.Regarding line 104, I will take another look at the theory and why it is needed to align polyphase components...
I am trying to understand how to obtain linear convolution when using a filterbank (FB) with frequency decimation. According to https://en.wikipedia.org/wiki/Discrete-time_Fourie... such...

Re: Guaranteed stable sliding Goertzel implementation

Reply posted 5 years ago (12/08/2019)
Hi Rick.Thank you for the list of papers with stable realizations. I have briefly looked at all the methods and decided to stick to the mSDFT.I will use that for...

Re: Guaranteed stable sliding Goertzel implementation

Reply posted 5 years ago (12/06/2019)
We are talking about the SDFT which can be realized as:For me, the goal is obtaining the exact same output as using a SDFT but without stability issues.I have accepted...

Re: Guaranteed stable sliding Goertzel implementation

Reply posted 5 years ago (12/05/2019)
Hi kaz.I might be wrong but what you are describing seems like the basic SDFT. Then you suggest substracting mean of the previous frame from the accumulator. Does...

Re: Guaranteed stable sliding Goertzel implementation

Reply posted 5 years ago (12/04/2019)
I want a sliding algorithm as it is not necessarily each block but could be any time I want the output. Also, the length N will be much greater than the block size,...

Re: Guaranteed stable sliding Goertzel implementation

Reply posted 5 years ago (12/03/2019)
Thank you for the inputs.As I wrote, it was also my thought that non-integer coefficients would lead to instability. However, in the "Musical applications of microprocessors"...
Is it possible that a Chamberlin state variable implementation of the Sliding Goertzel (SG) resonator provides a stable implementation without introducing a dampening...

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