How to generate audio wave form programmatically while recording Voice in iOS?

Question

How to generate audio wave form programmatically while recording Voice in iOS?

Answer 1

I was searching the same thing. (Making wave from the data of the audio recorder). I found some library that might be helpful and worth to check the code to understand the logic behind this.

The calculation is all based with sin and mathematic formula. This is much simple if you take a look to the code!

https://github.com/stefanceriu/SCSiriWaveformView

or

https://github.com/raffael/SISinusWaveView

This is only few examples that you can find on the web.