Split the field and add the fields dynamically in ingest pipeline

Hi Team,
We have scenario like audio files field with the values as path1,path2,path3 ( the number of paths are dynamic),
In ingest pipeline need to split this field and create audio1 =path1, audio2=path2, audio3=path3,
by using split processor can be able to split, but using foreach not able to create dynamic field names

Can you please suggest.