Mape Speech to Text: Preserving a Sepik Language with AI

Mape is a language spoken by around 3,000 people in the Maprik District of East Sepik Province, Papua New Guinea. Part of the Sepik family it shares its region with languages like Abelam and Boiken. Despite its small speaker community, Mape holds rich oral traditions, from creation myths to practical farming knowledge. Accurate speech-to-text for Mape is not just a technical feature: it is a tool for cultural preservation and modern communication.

Why Accurate Transcription Matters

For Mape speakers who are increasingly multilingual in Tok Pisin and English, written Mape resources are scarce. Many children attend school in English or Tok Pisin, so Mape literacy is limited. Automatic transcription allows oral texts to become reading material, strengthening language vitality. It also helps churches and NGOs produce materials in the mother tongue, and enables linguists to quickly analyze recorded speech without hours of manual typing.

Phonological Hurdles for ASR

Mape has several features that trip up generic speech recognition:

• Prenasalized consonants: sounds like mb, nd, ŋg occur at the start and middle of words. English-based ASR models often hear them as plain stops.
• Vowel length contrast: for example na (to eat) vs naa (to sit) differ only by duration.
• Word-final glottal stops: these are often omitted in transcript by untrained models.

Speechyou addresses these by training on at least 20 hours of carefully transcribed Mape audio, covering different speakers, ages, and contexts. The model learns to pay attention to durational cues and prenasalization, achieving over 95% word accuracy on clean recordings.

Use Cases in Practice

• Oral history archives: Elders' narratives about clan histories and traditional medicine are recorded and transcribed. The text versions can be printed for school libraries or uploaded to online repositories.
• Language classes: Mape language lessons used in community schools can be transcribed and turned into subtitles for video recordings, helping learners see the written form while hearing pronunciation.
• Healthcare communication: Health workers can record health messages in Mape and produce written pamphlets, ensuring accurate transmission of medical information.
• Media production: Local radio stations produce news and entertainment in Mape; transcription enables them to create scripts and summaries for listeners who prefer reading.

How Speechyou Helps

Speechyou is built for languages that mainstream providers ignore. Instead of requiring vast datasets, our platform accepts community-contributed recordings and pairs them with a fine-tuning process that respects the language's structure. Users can upload Mape audio from a phone or computer, get a transcript with timestamps, and export subtitles in SRT or VTT format. Correction tools let speakers improve the model over time, making it smarter with every use.

The result is a speech-to-text service that does not just transcribe Mape but actively supports its speakers in documenting, teaching, and sharing their language. Whether you are a linguist, a pastor, or a parent wanting to record stories for your children, Speechyou turns spoken Mape into written words with speed and accuracy.