Audio transcription would mean speech to text. Once I get the json I need to do some modifications on it and store it in cloud as a json file. However to do that, I need to load it entirely in memory, make my changes and then write it to file.

The problem here I am facing is, when the object is loaded a lot of memory is used and the memory used is not freed fully, so the difference in this accumulates gradually. So I was looking for formats which can be processed without keeping the entire text in memory.