Fixing/balancing out levels in (mono) recording?

[Trebor]

@KMG365

… the interviewer is many times as loud as the interviewee. This makes it almost unlistenable … Just thought I’d check here to see if there was an easy way to make this interview a bit more tolerable to get through …

Steve made a plugin for that called “levelspeech.ny”… Improved "leveling" for speech