What Is A Notch Filter And How Do I Use It? Learn what a notch filter is, where to find it in Logic Pro, and how it's used. Posted on January 20, 2010January 7, 2022 by Graham English — Leave a comment Post navigationPrevious post: Trifonic: Creating Your Own Multi-Sample InstrumentsNext post: How To Open Logic Pro 9 In 64-Bit Mode Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Δ