How do I record the audio in a mp3 file

Hi, I have this app on Googleplay. It´s my best app with much more downloads than my others.

https://play.google.com/store/apps/details?id=com.ekdu.hiphopbeatmaker

It´s a beatmaker which you can make beat on live mode.

Many users are asking to me to add the option of recording the beat and download it to theirs devices.

So, I would like to add a bottom to start recording of all audio playing, and another bottom to spot it.

When you press strop i want to ask the user if he like to download the audio to his device on a mp3.

Any one could point me to a tutorial or give me some advice.

Thanks.

I don't think you can do that with construct 2.

Ok, even Ashey have said its not possible in this post.

https://www.scirra.com/forum/how-do-i-get-the-recorded-audio_t179450