Transcript Format Converter

Category: General Content Use Case: Format Conversion and Compatibility Complexity: Intermediate Output: Transcript converted to specified format (TXT, SRT, VTT, JSON)

Overview

This AI prompt converts transcripts between formats: TXT, SRT, VTT, and JSON. Useful when you need a different format than what you have, or when converting for specific platforms.

The Prompt

Convert this transcript to a different format.

SOURCE FORMAT: [TXT/SRT/VTT/JSON]
TARGET FORMAT: [TXT/SRT/VTT/JSON]

CONVERSION REQUIREMENTS:

**TXT to SRT/VTT:**
- Estimate timestamps based on ~150 words per minute speaking rate
- Split into 2-3 second segments
- Keep segments under 42 characters wide

**SRT to VTT:**
- Add WEBVTT header
- Change comma to period in timestamps (00:00:00,000 → 00:00:00.000)
- Add speaker tags if speakers are identified

**VTT to SRT:**
- Remove WEBVTT header
- Change period to comma in timestamps
- Strip styling tags, keep text only
- Add sequence numbers

**Any to TXT:**
- Remove timestamps and formatting
- Add paragraph breaks at natural pauses
- Keep speaker labels

**Any to JSON:**
- Structure as segments array
- Include start/end times
- Add speaker attribution
- Include metadata (duration, speaker count)

OUTPUT:
- Full converted transcript
- Note any information lost in conversion
- Flag any segments needing manual review

TRANSCRIPT TO CONVERT:
[PASTE YOUR TRANSCRIPT HERE]

---
Prompt by BrassTranscripts (brasstranscripts.com)
---

How to Use This Prompt

Step 1: Identify Your Formats

Note what format you have and what format you need.

Step 2: Specify Conversion Direction

Fill in SOURCE FORMAT and TARGET FORMAT.

Step 3: Paste Your Transcript

Include the full transcript in its current format.

Step 4: Review Output

Check for any information loss or segments flagged for review.

Pro Tips for Best Results

Use BrassTranscripts for all formats: We provide TXT, SRT, VTT, and JSON with every transcription—no conversion needed.

Preserve original: Keep your source file; conversion can lose information.

Test a sample first: Convert a short section before processing long transcripts.

Verify timing: AI-estimated timestamps may need manual adjustment.

Conversion Matrix

From → To TXT SRT VTT JSON
TXT — Estimated timing Estimated timing Estimated timing
SRT Loses timing — Simple conversion Structured data
VTT Loses timing/styling Loses styling — Structured data
JSON Loses structure Full conversion Full conversion —

What’s Lost in Conversion

Example Conversions

TXT to SRT

Input (TXT):

Speaker 1: Welcome to the podcast. Today we're talking about AI.

Speaker 2: Thanks for having me. I've worked in AI for five years.

Output (SRT):

1
00:00:00,000 --> 00:00:04,000
Speaker 1: Welcome to the podcast.
Today we're talking about AI.

2
00:00:04,000 --> 00:00:08,000
Speaker 2: Thanks for having me.
I've worked in AI for five years.

SRT to VTT

Input (SRT):

1
00:00:00,000 --> 00:00:04,000
Welcome to the podcast.

Output (VTT):

WEBVTT

00:00:00.000 --> 00:00:04.000
Welcome to the podcast.

Example Use Cases

Expected Output Format

The AI will return:

  1. Fully converted transcript in target format
  2. Proper formatting for the target format
  3. Notes about any information lost
  4. Flags for segments needing manual review

Better Alternative: Download All Formats

BrassTranscripts includes all four formats (TXT, SRT, VTT, JSON) with every transcription. No conversion needed—download the format you need.

Upload audio and get all formats →

Source: BrassTranscripts Transcription File Formats Guide

Last Updated: January 2026 Version: 1.0 Compatibility: ChatGPT, Claude, Gemini, and all major AI chat systems