Substack audio post to quotes with timestamps in English
Substack audio post to quotes with timestamps in English: send the file and get the text with the timecodes. One file may be up to 30 minutes on the free plan, no minute limit on Pro.
What the Substack stores is what the engine needs. The English speech becomes the list of quotations in the sections Who spoke, Quotes with timestamps, Themes; one file may be up to 30 minutes, and 3 files a day are free.
How to get the file and turn it into quotes with timestamps
- 1
Open the transcript
The transcript icon is pressed, and the transcript can be corrected or replaced by the file of the author
- 2
Send the recording to the bot
The engine takes the Substack audio post from the widget of the page; the speech is in English, and the list of quotations comes back with the timecodes.
- 3
Apply the instruction of the task
The transcript of the Substack audio post goes to the instruction that is written for the list of quotations, and the sections of the answer are Who spoke, Quotes with timestamps, Themes.
- 4
Tell the engine what it hears
The engine reads 99+ languages; the speech of this Substack audio post is in English, and the widget carries that setting for the list of quotations.
- 5
Check the file before the upload
The audio file of a post is an MP3, a WAV or an ACC file
What comes back from the engine
- TXT
One segment per line, the way a person wrote it down. It is the format to paste into a ticket, a chat or a document.
- TXT, CSV
The start and the end time of every segment, and the speakers named separately when you ask for it.
- SRT, VTT
SRT and VTT with the time of every line, so the recording can carry its own subtitles.
- Markdown, DOCX
The transcript is edited through the API and exported as Markdown for a wiki, or as DOCX for a review.
What Substack keeps, and what it says about it
- Where the file is
An audio post is made in the web version of the publication: Create and then Podcast.
- What the file is
The audio file is recorded in the app or uploaded, and the transcript is opened with the transcript icon when the file has been processed.
- What can go wrong
A video post is recorded in the browser with the Recording Studio of Substack or uploaded with Select file.
- What the platform says
The audio file of a post is an MP3, a WAV or an ACC file.
- What the platform says
The transcript of a post can be edited, and a transcript file of the author can be uploaded as a .txt, .srt or .vtt file.
- Length of one file
up to 30 minutes on the free plan, no minute limit on Pro
- Free plan
$0: 3 files a day, up to 30 minutes per file, no card
- Pro plan
$10 a month when you pay yearly ($120 a year), or $20 a month
What the recording does not give you
Before the list of quotations there is the file of the Substack audio post. A video post is recorded in the browser with the Recording Studio of Substack or uploaded with Select file. The English speech is read once, and the sections Who spoke, Quotes with timestamps, Themes are written from it.
Tips
Read the sections of the list of quotations before you send it on.
Mark the language of the speech of the Substack audio post.
Take the file of the Substack audio post as soon as you have it.
Questions about Substack audio post and quotes with timestamps
Which problems can come with the Substack audio post?
An audio post is made in the web version of the publication: Create and then Podcast. The engine does not change the file of the Substack audio post; it reads it as it is and writes the list of quotations.
What does the Substack keep for the Substack audio post?
The recommended maximum size of a video upload is 20 GB, with a H.264 codec and an AAC audio codec. The file of the Substack audio post is the input of the engine, and the list of quotations is written from it.
Who reads the list of quotations after the Substack audio post is sent?
the editor of the interview. The transcript of the Substack audio post is read first, and the list of quotations comes out of it in the sections Who spoke, Quotes with timestamps, Themes.
What do I get without a card?
3 files a day of up to 30 minutes every day, and the export of the text in the formats of the service, so the list of quotations comes back in every one of them.
Do I need an account for the Substack audio post?
The file of the Substack audio post and the widget are enough: the engine reads the English speech and writes the list of quotations.
Related pages
The same task on another recording, with the same steps and the same sections.
Interview to quotes with timestampsThe page of the task: the instruction that is written for it and an example of the answer.
Transcribe audio to textWhat the service does with a file: the formats of the export, the limits and the plans.
Sources
- SSubstack help: how can I generate a transcript of an audio post (read 2026-10-25)support.substack.com · checked
- SSubstack help: guide to video posts on Substack (read 2026-10-25)support.substack.com · checked
- TTranscription service page (read 2026-10-25)transcrib.si · checked
- TPricing page (read 2026-10-25)transcrib.si · checked
Reading: 4 minutesUpdated Transcribsi editorial team
Drop a recording — the text arrives in a minute
Speakers by name, a time on every line, export to TXT, SRT, VTT, CSV and Markdown.