Modulating audio signal with Euterpea

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I seem to have a problem with choosing library for my project. I have to write an application in Haskell to modulate, filter etc. audio. Let's say I want to read an audio file and apply low-pass filter to it.

Is it possible to write the low-pass filter with Euterpea? The project should be done using reactive programming but I know that Euterpea uses Arrows and FRP.

I would really appreciate some information :)

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