Audio to SRT Converter
Transcribes YOUR actual audio → generates real SRT, LRC & ASS subtitles
Get your FREE key at assemblyai.com → Sign Up → Dashboard → Copy API Key
✅ Free tier: 100 hours/month · No credit card required
Free Audio to SRT, LRC & ASS Converter
Convert your audio files into subtitle formats like SRT, LRC, and ASS instantly.
Upload your audio and download subtitle files in seconds.
How to Use – Audio to SRT Converter
Step 1 – Get Your Free AssemblyAI API Key
Visit assemblyai.com and click on the Sign Up button. You can create a free account using your email address without adding any credit card details.
After logging in, open your dashboard and copy your API key.
Step 2 – Enter Your API Key in the Tool
Open the Audio to SRT Converter tool and paste your API key into the API key input field.
You can enable the “Remember my API key” option so you don’t need to enter it again in the future.
Step 3 – Upload Your Audio File
Drag and drop your audio file into the upload area or click on the “Browse File” button to select your file manually.
Supported formats include MP3, WAV, M4A, AAC, OGG, FLAC, and WEBM. The maximum allowed file size is 20 MB.
Once uploaded, an audio player will appear so you can preview your file.
Step 4 – Convert Audio to Subtitles
Click the “Convert to Subtitles” button to start the process.
The tool will securely upload your audio to AssemblyAI and begin transcription.
Please wait for the progress bar to complete. This usually takes around 30 to 60 seconds depending on the audio length.
Step 5 – Review Your Transcript
After processing, the transcript of your audio will be displayed on the screen.
You can review the text to ensure accuracy and make any necessary adjustments.
Click the “Copy Transcript” button to copy the text easily.
Step 6 – Download Subtitle Files
You can download your subtitles in different formats based on your needs:
- Download SRT – Suitable for YouTube, VLC, and most video players
- Download LRC – Ideal for music players and karaoke subtitles
- Download ASS – Best for advanced subtitle styling
Important Notes
- Your API key is stored only in your browser and is never shared with any server except AssemblyAI.
- The AssemblyAI free plan provides up to 100 hours of transcription per month at no cost.
- The tool supports multiple languages, but the best results come from clear audio quality.
Features
- Supports multiple audio formats
- Converts to SRT, LRC, and ASS
- Instant subtitle generation
- Easy download options
- Works directly in browser
Benefits
This tool helps content creators generate subtitles quickly without installing software.
Perfect for YouTube videos, podcasts, and online content creation.
FAQ
What is an SRT file?
SRT is a subtitle format used in videos.
Can I convert any audio file?
Yes, most audio formats are supported.
Is this tool free?
Yes, it is completely free.
Does it work offline?
Yes, it works in your browser.
Is transcription accurate?
Accuracy depends on browser capabilities.
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Start Using the Tool
Convert audio into subtitles instantly using our free Audio to SRT Converter.