Speed Up Transcriptions: Save Time & Money with AI

Host

Welcome back to Tech Talk Today! I'm your host, and today we have a special episode where we're diving into a clever trick for speeding up video transcription using OpenAI. Joining me is George Mandis, an expert in audio processing and transcription technologies. George, thanks for being here!

Expert

Thanks for having me! I'm excited to share this little hack that can save both time and money when working with audio transcriptions.

Host

Absolutely! So, to get started, could you explain what inspired you to look for a faster way to transcribe audio?

Expert

Of course! I was faced with a 40-minute talk by Andrej Karpathy about AI and its impact on software. It felt daunting, and I just wanted to get the main points quickly. I thought, 'Why not use AI to summarize this for me?'

Host

That makes total sense! AI can definitely help with that. So, what was your initial approach to this problem?

Expert

Initially, I tried to extract the auto-generated subtitles from YouTube. However, I ran into some errors and realized my software was outdated. Instead of fixing that, I went down a different path.

Host

Ah, the classic troubleshooting detour! So what did you figure out instead?

Expert

I discovered that by using a tool called ffmpeg, I could speed up the audio before sending it for transcription. For instance, if I sped it up to 3x, I could save time and reduce costs associated with the API calls.

Host

That's brilliant! So, just to clarify for our listeners, how does speeding up audio actually help with the transcription process?

Expert

When you speed up the audio, you effectively reduce the duration that the transcription service needs to listen to and process. Since many services charge by the minute, this can lead to significant savings.

Host

Got it! Can you walk us through the steps you took to implement this?

Expert

Sure! First, I used a tool called yt-dlp to extract audio from the video. Then, I applied the ffmpeg command to double or triple the speed of that audio, and finally, I sent it to OpenAI for transcription.

Host

Sounds straightforward! Were there any challenges you faced while doing this?

Expert

Definitely! One challenge was figuring out the right commands and making sure everything was updated. But once I got the hang of it, it was smooth sailing.

Host

That's great to hear! So, for someone looking to try this out, what tools would they need?

Expert

They would need yt-dlp, ffmpeg, and access to OpenAI's API. It's a simple setup, and there are plenty of online resources to help with installation.

Host

Perfect! Any final tips for our listeners who want to summarize their videos more efficiently?

Expert

Just remember to experiment with the speed settings! You can find a balance that maintains transcription quality while saving you time and costs.

Host

Excellent advice! George, thank you so much for sharing your insights today. This has been really enlightening!

Expert

Thank you for having me! I hope everyone finds these tips helpful.

Host

And to our listeners, thanks for tuning in to Tech Talk Today! We’ll catch you next time with more tech tips and tricks!