Descript is purpose-built for exactly this workflow, letting you remove silences automatically with its Studio Sound feature for noise reduction, and edit out stutters by simply deleting words in the transcript view. It processes the audio non-destructively so you can fine-tune results before exporting a clean episode. ElevenLabs is worth considering if your main concern is noise cleanup and voice enhancement rather than full editing. ChatGPT can help if you want step-by-step guidance on using free tools like Audacity or FFmpeg to accomplish the same tasks manually.