Voice is frequently used in Whats*App. Each voice is a separate file with Opus audio codec. This app is developed to convert Opus voice note to Mp3 file. It also can merge multiple voice notes to a single mp3 file. In this app, all voices are displayed and can be played or shared. User can select one voice or multiple voices and convert or merge to a mp3 file. The mp3 file can be played in music player or be saved in computer/cloud.
The free version can merge 3 voices at most. Please access the Pro version for unlimited voice merging: https://play.google.com/store/apps/details?id=com.playwfd.wsvoice_pro