Using other applications to booI have a number of audio recording applications which will give me a good quality voice recording and the one that I prefer to use is called Audio Evolution Mobile which is a multitrack digital audio workstation for Android. I also have Easy Voice Recorder which is not bad, but doesn't let me do any editing of the recording. Then there is Pocket WavePad which is easy-to-use and gives a fairly good recording. With this one I also get a decent level meter and it seems to work reasonably well. I do prefer to have an audio recorder that will let me see the audio wave of my voice recordings. This makes it so much easier to edit the sound when I can see the sounds on the timeline as well as hear them.
As I was inclined to buy the Audio Evolution Mobile application as with it I didn't want to have any annoying advertising taking up valuable screen space. Sometimes I find that I have to be careful with the distance of the audio source, my mouth, to the microphone on the telephone as it is very sensitive and I can easily find that the audio is clipping. When the tops of the waves are cut with this clipping, it totally destroys the sound and I have to do a new recording of the audio.