How to Repurpose a Podcast Episode Into Audiograms and Quote Cards

Turn a long audio episode into short captioned audiograms and shareable quote graphics for social feeds.

8 minIntermediate

Podcasts are hard to discover because feeds do not autoplay in a social scroll. The fix is to extract the strongest 30 to 60 second moments and wrap them in something visual: a waveform audiogram with captions, plus still quote cards for the lines that work even without sound. One episode can produce a week of feed posts.

The episode audio file (MP3 or WAV)
A transcript (Whisper, Descript or your host's auto-transcript)
An audiogram tool (Headliner or Descript)
A simple graphics tool (Canva) for quote cards

Step 1: Transcribe the episode

You need text to find the good lines fast. If your host does not auto-transcribe, run the audio through Whisper locally. The transcript also becomes your show notes and caption source later, so this step pays for itself several times.

zsh - podcast

Transcribe with OpenAI Whisper (open source)

$pip install -U openai-whisper

$whisper episode-42.mp3 --model small --output_format txt srt

Writing episode-42.txt

Writing episode-42.srt

Step 2: Mark the three best moments

Scan the transcript for lines that are surprising, contrarian, or emotionally clear. Mark the timestamp of each. Look for self-contained quotes that do not require the question that prompted them.

Step 3: Build the audiogram

In Headliner, upload the clip, choose a waveform style, add your show artwork, and import the SRT so captions sync automatically. Export at 1:1 for feed posts and 9:16 for Stories and Reels. The animated waveform gives the eye something to follow while the audio plays.

Headliner - audiogram

Clip: episode-42 00:14:32 -> 00:15:18

~~~~ animated waveform ~~~~

Caption: "You do not need a bigger audience.

You need a clearer offer."

Export: ( ) 16:9 (x) 1:1 ( ) 9:16

Waveform on top, synced captions below, show art in the corner.

Step 4: Make quote cards for the silent scroll

Some lines do not need audio at all. Drop the quote into a Canva template with the guest's name and your show handle. These load instantly and get saved and shared more than video, so they spread the episode to people who would never press play.

Canva - quote card

"You do not need a bigger audience.

You need a clearer offer."

- Jordan Lee, guest on Ep. 42

@yourpodcast

One strong line, attribution, and your handle.

Always caption the audiogram

Feeds autoplay muted. Without burned-in captions an audiogram is just a moving waveform with no message. The SRT from step one makes this automatic.

Result: from one episode you get three captioned audiograms and three quote cards, enough to post something every day for a week while pointing each one back to the full episode.