Services / Speech & Language Data

Build AI that understands how people really speak.

End-to-end speech and text datasets that help your models understand real people.

◉

Speech & Language Data

Why teams choose Langigs

Models trained only on standard, high-resource language struggle with real users. We design and deliver speech and text datasets — recordings, transcripts, translations, and parallel corpora — that reflect the languages, accents, and everyday speech of the people your product serves.

One partner, full pipeline

Collection, transcription, translation, and annotation handled together.

Representative data

Coverage planned across speakers, dialects, topics, and recording conditions.

Model-ready output

Consistent formats, schemas, and metadata that drop straight into your pipeline.

Documented datasets

Clear documentation of sources, consent, and conventions for responsible AI.

Use cases

Where we can help

  • Automatic speech recognition (ASR)
  • Machine translation and parallel corpora
  • Conversational AI and chatbots
  • Text-to-speech voices
  • Large language model fine-tuning and evaluation
  • Language identification and dialect models

How it works

A clear process, start to finish.

  1. 01

    Scope the dataset

    Define languages, hours or volume, domains, and target formats.

  2. 02

    Design the specification

    Agree conventions for transcription, labels, and metadata.

  3. 03

    Produce the data

    Our network collects, transcribes, translates, and annotates the data.

  4. 04

    Validate and hand over

    Data is reviewed, documented, and delivered in batches.

Quality assurance

Quality built into every step

  • Layered human review on every batch
  • Inter-annotator agreement checks where relevant
  • Format and schema validation before delivery
  • Dataset documentation and acceptance criteria agreed up front

FAQ

Common questions

Can you build a dataset from scratch?

Yes. We can plan the full dataset with you, from speaker recruitment and prompts to transcription, translation, and delivery.

Do you deliver in batches?

Yes. Batch delivery lets your team test early data and refine the guidelines before full production.

Who owns the final dataset?

Ownership and usage rights are agreed in writing before the project begins.

Start your project

Ready to talk about Speech & Language Data?

Share your goals, languages, and timeline. We will reply with next steps and a plan that fits.

More services

Explore other ways we can help