Simply replicate her voice done by Adrienne Barbeau from the DCAU: https://youtu.be/-y4yEnxsjMA?si=5cL1gZ1btSn66cMV ,

If must do a different voice, try

Gina Gershon from The Batman (2004):

https://youtu.be/M97B8ICmjg4?si=0R6OF_WpvRjcl77S ,

Nika Futterman from Batman: The Brave and the Bold -https://youtu.be/4FvUAKpDqJ0?si=xYyoRTdUdQy8SM0V ,

Laura Bailey from Telltale's Batman:

https://youtu.be/O4wkcEF89nY?si=JClR1g9K5czYDKiL ,

Jennifer Carpenter from Batman: Gotham By Gaslight - https://youtu.be/CmGLIQY9a-s?si=KbA5C-Tdlg2MayQJ ,

Jennifer Morrison from Batman: Hush:

https://youtu.be/QvMRqX7TiMM?si=JcmPpLTrlrlZTUrW ,

Naya Rivera from Batman: The Long Halloween -

https://youtu.be/qmAfpe7fEjc?si=iDrYyGNp4lAxmsm9 ,

Christina Ricci from Batman: The Caped Crusader - https://youtu.be/28WTMelomuE?si=kETD9fhlOyXeEMkr.