LabVIEW Signal Processing- A quick redesign

I have been practicing to use LabVIEW ( Laboratory Virtual Instrument Engineering Workbench) since my sophomore year. This systems engineering software has helped me to test, measure, control and simulate many of the hardware and data designs. I have attached some easy models of the signal and audio processing below, please feel free to use them!

And also don't forget to check my other project on MEMS based APAP device virtual simulation model on LabVIEW here.