Show HN: Subvocal – Talk to your computer without making noise

本文为原文前 6,000 字符的节选翻译，完整内容请查看原文。

Hi HN, we’re Aarush and Arnav from The Subvocal Company (YC F26) (https://subvocal.company/). We’re building smart glasses that let you talk to your computer without talking out loud. You can mouth words silently and discreetly and the glasses decode them to text at the speed of speech.

大家好，我们是来自 The Subvocal Company (YC F26) 的 Aarush 和 Arnav。我们正在开发一种智能眼镜，让你无需出声就能与电脑交流。你可以静默且隐蔽地进行口型动作，眼镜会以说话的速度将其解码为文字。

(Edit: you don’t actually have to move your lips or even open your mouth for this to work! Since the RF can see inside your mouth the system can be fine tuned on “internal speech”. This isn’t the automatic tongue movements that occur when “thinking” words to yourself, but more like mouthing with your lips closed. It’s a bit weird to do, but with practice, we have been able to get it down pretty well.)

（编辑：实际上你并不需要移动嘴唇甚至张开嘴巴就能实现！由于射频信号可以探测到你的口腔内部，系统可以针对“内心语言”进行微调。这并非你在“默想”词汇时产生的自动舌头运动，而更像是闭着嘴做口型。虽然操作起来有点奇怪，但经过练习，我们已经能够掌握得相当不错了。）

Arnav and I were studying CS at Georgia Tech at the beginning of the year, with no experience in silent speech or sensing. We were both AI-native builders and power users of Wispr Flow. What bugged us was not being able to use these tools in the library (or an office) or in public. At Stanford’s TreeHacks in February, we decided to build the most technically ridiculous thing we could think of. We’d read about AlterEgo, a silent speech system out of MIT’s Media Lab, and wanted to recreate it in 36 hours.

今年年初，我和 Arnav 还在佐治亚理工学院攻读计算机科学，在静默语音或传感领域没有任何经验。我们都是 AI 原生开发者，也是 Wispr Flow 的重度用户。困扰我们的是，无法在图书馆（或办公室）或公共场合使用这些工具。二月份在斯坦福大学的 TreeHacks 黑客马拉松上，我们决定打造一个在技术上最不可思议的东西。我们曾读过麻省理工学院媒体实验室的静默语音系统 AlterEgo，并想在 36 小时内将其重现。

We quickly realized EMG (reading muscle electrical signals) wouldn’t work: Signal changes due to sweat, electrical interference, placement variability, and most importantly, no one wants to stick electrodes onto their face!! So we switched to RF and built the glasses you see now. They emit radio waves, similar to Bluetooth, that pass through your face. As they cross the tongue, lips and soft palate, they’re modulated by silent mouthing. We train foundation models on this data to decode these perturbations to text.

我们很快意识到肌电图（读取肌肉电信号）行不通：汗水会导致信号变化、存在电气干扰、放置位置不一致，最重要的是，没人愿意在脸上贴电极！！因此，我们转向了射频技术，并制造了你们现在看到的眼镜。它们会发射类似于蓝牙的无线电波，穿过你的脸部。当这些波穿过舌头、嘴唇和软腭时，会被静默的口型动作所调制。我们利用这些数据训练基础模型，将这些扰动解码为文字。

Over the next few months we’re continuing R&D to turn our prototype glasses into the slick product on our website and ship in Q1 2027. We’re also scaling up our dataset to improve performance on edge cases. For anyone who loves voice dictation but hates using it around people, we’ve opened preorders for our first batch of 500 units, with a $200 discount off the final price.

在接下来的几个月里，我们将继续进行研发，将原型眼镜打造成网站上展示的那种精致产品，并于 2027 年第一季度发货。我们也在扩大数据集，以提高在边缘情况下的性能。对于那些喜欢语音听写但讨厌在他人面前使用的人，我们已经开启了首批 500 台设备的预购，最终价格可享受 200 美元的折扣。