# DSP.jl how to use ZeroPoleGain with specifications in Hz?

**URL:** <https://discourse.julialang.org/t/dsp-jl-how-to-use-zeropolegain-with-specifications-in-hz/90772>\
**Category:** General Usage\
**Tags:** dsp\
**Created:** [November 24, 2022, 7:43pm UTC](https://discourse.julialang.org/t/dsp-jl-how-to-use-zeropolegain-with-specifications-in-hz/90772 "2022-11-24T19:43:56Z")\
**Posts on this page:** 1\
**Showing post:** 11

<div class="post-metadata">

**Author:** ![rafael.guerra](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/rafael.guerra/32/216610_2.png) [@rafael.guerra](https://discourse.julialang.org/u/rafael.guerra)\
**Post date:** [November 27, 2022, 7:14am UTC](https://discourse.julialang.org/t/dsp-jl-how-to-use-zeropolegain-with-specifications-in-hz/90772/11 "2022-11-27T07:14:06Z")

</div>

> [@dutille](#):
>
> Do you know of any Julia equivalent to the bilinear()

There is a `DSP.Filters.bilinear()` function that is not documented. See this [other post](https://discourse.julialang.org/t/not-sure-how-to-apply-a-filter/50265/7) and the [github source](https://github.com/JuliaDSP/DSP.jl/blob/master/src/Filters/design.jl) code.

---

_[View the full topic](https://discourse.julialang.org/t/dsp-jl-how-to-use-zeropolegain-with-specifications-in-hz/90772)._