# Beginner Frequency Problem

**URL:** <https://discourse.processing.org/t/beginner-frequency-problem/12400>\
**Category:** Libraries\
**Created:** [June 30, 2019, 7:51am UTC](https://discourse.processing.org/t/beginner-frequency-problem/12400 "2019-06-30T07:51:56Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Sugallat](https://avatars.discourse-cdn.com/v4/letter/s/9fc29f/32.png) [@Sugallat](https://discourse.processing.org/u/Sugallat)\
**Post date:** [June 30, 2019, 7:51am UTC](https://discourse.processing.org/t/beginner-frequency-problem/12400/1 "2019-06-30T07:51:56Z")

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Hello! 🙂

This is my first post. I’m working on a Frequency analyzer.  
The problem is that, when I sing **G#4** , it writes _G#5 with wrong Herz_.

How should I fix this code?  
[https://codepen.io/asinger/pen/pXWxZB](https://codepen.io/asinger/pen/pXWxZB)

Thank you very much!