Conversion of mp3 files to vm1 file format

It is likely that your  best option for making Panasonic voice files (.vm1) from .mp3 sources is to use some of the audio editors or converters with extensive format support which would allow for this type of mp3 to vm1 conversion. One of these programs is for example the popular Awave Studio, but it is likely that some alternatives that can also convert mp3 to vm1 exist.

Open MP3 file    Open VM1 file

Related software

Awave Studio icon

Awave Studio

Audio editting software with huge format support