发布 HN：Issen（YC F24）– 个人 AI 语言导师
大家好，我们是来自ISSEN的Mariano和Anton（<a href="https://issen.com">https://issen.com</a>），一款根据您的兴趣、目标和需求调整的外语语音辅导应用。
<p>演示：<a href="https://www.loom.com/share/a78e713d46934857a2dc88aed1bb100d?sid=ec4dc1f3-1a4f-4d75-8e87-efbb3d2b2e90" rel="nofollow">https://www.loom.com/share/a78e713d46934857a2dc88aed1bb100d?...</a>
<p>我们创办这家公司是因为在寻找有效的日语和法语口语练习工具时遇到了困难。拥有一位辅导老师固然不错，但也有一些缺点：费用高（因为按小时收费）、安排时间困难，以及高昂的前期成本（找到合适的老师往往需要经历几位不合适的老师）。
<p>我们希望找到一种能与我们对话的工具——真实地进行完整的对话——并且能够真正帮助我们提高。因此，我们自己动手开发了这个应用。
该应用依赖于一个自定义的语音AI管道，结合了语音转文本（STT）、文本转语音（TTS）、大语言模型（LLMs）、长期记忆、打断、轮流发言等功能。让语音转文本在学习者中表现良好是最具挑战性的部分之一——尤其是在口音、多语言句子和嘈杂环境中。我们现在结合了Gemini Flash、Whisper、Scribe和GPT-4进行转录，以最小化错误并保持对话流畅。
<p>我们不想过于关注游戏化。在我们的经验中，这往往导致用户在应用中表现良好，取得长时间的连胜，但实际上并没有真正掌握他们想要学习的语言。
<p>使用ISSEN，您可以立即开始说话并沉浸在语言环境中，虽然这并不容易，但却是更高效的学习方式。
<p>我们将此与词汇库和SRS闪卡结合，帮助用户在AI语音聊天中快速学习新单词，从而迅速提高词汇量和口语能力。我们还根据每位学生的目标、兴趣和偏好创建定制课程，并提供完全可自定义的设置，如语速、轮流发言、正式程度等。
<p>应用程序：<a href="https://issen.com">https://issen.com</a>（支持网页、iOS和Android）
定价：20分钟免费试用，$20–29/月（具体取决于使用时长和地区）
<p>我们非常希望听到您的反馈——无论是关于技术、用户体验，还是您希望从这种工具中获得的功能。谢谢！
查看原文
Hey HN, we're Mariano and Anton from ISSEN (<a href="https://issen.com">https://issen.com</a>), a foreign language voice tutor app that adapts to your interests, goals, and needs.<p>Demo: <a href="https://www.loom.com/share/a78e713d46934857a2dc88aed1bb100d?sid=ec4dc1f3-1a4f-4d75-8e87-efbb3d2b2e90" rel="nofollow">https://www.loom.com/share/a78e713d46934857a2dc88aed1bb100d?...</a><p>We started this company after struggling to find great tools to practice speaking Japanese and French. Having a tutor can be awesome, but there are downsides: they can be expensive (since you pay by the hour), difficult to schedule, and have a high upfront cost (finding a tutor you like often forces you to cycle through a few that you don’t).<p>We wanted something that would talk with us — realistically, in full conversations — and actually help us improve. So we built it ourselves.
The app relies on a custom voice AI pipeline combining STT (speech-to-text), TTS (text-to-speech), LLMs, long term memory, interruptions, turn-taking, etc. Getting speech-to-text to work well for learners was one of the hardest parts — especially with accents, multi-lingual sentences, and noisy environments. We now combine Gemini Flash, Whisper, Scribe, and GPT-4o-transcribe to minimize errors and keep the conversation flowing.<p>We didn’t want to focus too much on gamification. In our experience, that leads to users performing well in the app, achieving long streaks and so on, without actually getting fluent in the language you're wanting to learn.<p>With ISSEN you instantly speak and immerse yourself in the language, which, while not easy, is a much more efficient way to learn.<p>We combine this with a word bank and SRS flashcards for new words learned in the AI voice chats, which allows very rapid improvement in both vocabulary and speaking skills. We also create custom curriculums for each student based on goals, interests, and preferences, and fully customizable settings like speed, turn taking, formality, etc.<p>App: <a href="https://issen.com">https://issen.com</a> (works on web, iOS, Android)
Pricing: 20 min free trial, $20–29/month (depending on duration and specific geography)<p>We’d love your feedback — on the tech, the UX, or what you’d wish from a tool like this. Thanks!