Improve script output format

[Kostis-S-Z]

Is your feature request related to a problem? Please describe.
The output of the script is a non-valid JSON due to duplicate keys leading to a sub-optimal parsing code here.

Example:

{
  "Speaker 1": "Welcome to our podcast! Today, we're exploring...",
  "Speaker 2": "Hi Laura! I'm excited to hear about this. Can you explain...",
  "Speaker 1": ...
}

Describe the solution you'd like
The output of the script should be a valid JSON. Either like this

[
   {"Speaker 1": "Welcome to our podcast, where we ...."},
   {"Speaker 2": "Hi, I'm excited to be here, so what is ..."},
]

or even like this? with the -1 indicating the round of the speaker.

{
  "Speaker 1-1": "Welcome to our podcast! Today, we're exploring...",
  "Speaker 2-1": "Hi Laura! I'm excited to hear about this. Can you explain...",
  "Speaker 1-2": ...
}

Describe alternatives you've considered
Leave it as it is ¯_(ツ)_/¯