A week ago, Microsoft released the open-source VibeVoice Model, and today Google updated Gemini Audio. In the intervening days, I developed MeetLingo: a real-time speech-to-speech tool focused on PC online meetings. The motivation was simple: when VibeVoice announced a 300ms latency, I realized that TTS latency had become low enough to be truly used in time-sensitive scenarios like "real-time meetings." So, I spent a day using Vibe Coding to create the MVP. The entire system uses a streaming architecture: speech is recognized and translated simultaneously, translation tokens are sent to the TTS system as they are spoken, and finally, the output is directly as speech, rather than waiting for a sentence to finish before processing begins. Because of this, currently, with a local + open-source model, the TTFA (Time-to-Average Translation) is around 1000-1500ms. In the open-source world where code can be customized, modified, and embedded, latency is generally over 2000ms. Our speed is already quite competitive (approaching the translation speed in Google Video). Frankly, when I saw Google announce the Gemini Audio update today, I felt for a moment that "this idea and narrative were completely overshadowed." When a big company makes a move, it's easy to suppress creativity, timing, and even the presence of a startup. Therefore, in this era, what truly matters is not hiding ideas and slowly refining them, but the ability to quickly build an MVP and validate it in the real world. But then I thought, since we've already started, let's continue. MeetLingo was never limited to meetings from the beginning; it's essentially a low-latency speech-to-speech pipeline. In the future, it will support more languages and can be used in any real-time voice scenario. The difference is that I chose to make it open-source and local-first, not a feature locked within a platform. Now that it's running, let's gradually optimize it to be faster, more stable, and easier to use. My GitHub and website are in the comments section. Feel free to check them out, and please give it a ⭐ if you'd like!

Github: github.com/0x0funky/MeetLingo… Website: meetlingo.vercel.app