I copied the MP3 created by Boldbeast and used an audio editor to increase the volume.
Within Boldbeast, is it possible to make the recording level more sensitive to give a louder playback?
I am using Android 10 on a Moto G7 and the Boldbeast sampling rate is set to "Auto". Bold beast recording mode is "12" as recommended. The Tune Audo Route is unchanged at "Group2".