Preserving the Hän Language with AI Speech-to-Text

Introduction to Hän

Hän (also spelled Han) is a Northern Athabaskan language spoken in the region of the Yukon River, primarily in the communities of Eagle, Alaska, and Dawson City, Yukon. The language is also known as Hän Hwëch'in, meaning "river people." It is critically endangered, with an estimated 20–50 fluent speakers remaining, most of whom are elders. Efforts to revitalize Hän include language classes, documentation projects, and the use of technology to record and transcribe spoken materials.

Why Speech-to-Text Matters for Hän

Accurate speech-to-text for Hän is essential for several reasons:

• Language preservation: Transcribing oral histories and stories creates a written record that can be studied by future generations.
• Accessibility: Deaf or hard-of-hearing community members can access Hän-language events through captioning.
• Education: Learners can see the written form of words while listening to correct pronunciation, accelerating acquisition.
• Research: Linguists can analyze tone patterns, syntax, and discourse features using searchable text.

Challenges in Transcribing Hän

Hän presents unique challenges for ASR systems:

Tonal and Phonological Complexity

Hän is a tonal language with high and low tones, nasal vowels (e.g., ą, ę), and glottalized consonants (e.g., tʼ, kʼ). These sounds are not found in most languages and require specialized acoustic models. Generic ASR often confuses tone or nasalization, leading to incorrect transcriptions.

Limited Training Data

Most ASR tools require hundreds of hours of transcribed speech. Hän has only a few hours of studio-quality recordings. Speechyou overcomes this by allowing users to upload their own recordings and use custom vocabulary to fine-tune the model. Even with 10–20 minutes of data, accuracy can reach over 90% for clean audio.

Dialect Variation

As mentioned, there are two main dialects (Alaska and Yukon), which differ in vowel nasalization and some lexical items. Speechyou supports dialect-specific models, so you can choose the one that matches your audio.

Use Cases for Hän Speech-to-Text

Oral History Preservation

Many Hän elders have recorded stories about traditional life, hunting, and the impact of colonization. These recordings are invaluable but often sit on tapes without transcripts. With Speechyou, you can upload audio and immediately get a text file in Hän, along with English translations if needed. Time-stamped output allows indexing by topic.

Subtitling Community Videos

Documentaries, language lessons, and cultural events can be subtitled in Hän using Speechyou's SRT/VTT export. This makes content accessible to a wider audience, including learners who are not yet fluent speakers.

Language Revitalization Classes

Teachers can use Speechyou to generate classroom materials. For example, a short dialogue can be transcribed and turned into a reading exercise. The real-time transcription feature also allows for interactive captioning during live classes.

Academic Research

Linguists studying Athabaskan languages can use Speechyou to quickly transcribe field recordings, saving hours of manual work. The tool's accuracy on tonal features is a major advantage over generic ASR.

How Speechyou Helps

Speechyou is designed to handle low-resource languages like Hän. Key features:

• Custom vocabulary: Add Hän words, place names, and personal names to improve recognition.
• Dialect selection: Choose Alaska or Yukon dialect for better accuracy.
• Real-time transcription: Perfect for live captioning at community events.
• Unlimited transcription: The Solo plan includes unlimited minutes, so you can transcribe hours of recordings without worrying about costs.

Conclusion

Hän is a precious cultural heritage that deserves to be preserved. Speechyou provides a practical, affordable way to convert spoken Hän into text, enabling documentation, education, and accessibility. By using AI, we can help ensure that the voice of the Hän Hwëch'in people continues to be heard for generations to come.