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Bug in MuReNNDirect.to_conv1d #64

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xir4n opened this issue Dec 2, 2024 · 1 comment
Closed

Bug in MuReNNDirect.to_conv1d #64

xir4n opened this issue Dec 2, 2024 · 1 comment
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@xir4n
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xir4n commented Dec 2, 2024

There is a bug when getting murenn the filters. (ref: Matlab official documentation)

Here's an explanation thanks to @lostanlen
Given the frame analysis operation:
y [ k ] = Ψ x [ k ] =< x | Ψ k > ,
and the frame synthesis operation:
Ψ y =< y | Ψ >= y [ k ] Ψ k ,
the synthesis operator satisfies
< Ψ a | x >=< a | Ψ x >=< a | y >
for all a in the DTCWT coefficient space.
Thus, setting a = δ j w j helps to visualize the filters.

If there are any inaccuracies in this explanation, please feel free to correct them.

@xir4n xir4n added this to the 0.3 milestone Dec 2, 2024
@lostanlen
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Closed by #62

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