Exporting sound recording after post Nyquist prompt

Dear Audacity team,

I hope you are well.

My name is Mr. Patel and I am a project student in my masters year at The University of Hertfordshire.

I am pleased to inform you that the programme has given me great success, however, I am struggling to export some needed data from Audacity.

Specifically, after audio recording and applying an Nyquist prompt to filter the sound, I need to export the remaining audio as a CSV file or ASCII file with DB vs Time so I can plot this data onto excel.

Please can you advise me on exactly how I would go about doing this, as my data representation is dependant on it.

Thanks very much

Akshay Patel

Have you tried Sample Data Export ?