Speech Data Collection


Build better natural language processing, understanding, and automatic speech recognition solutions with human-annotated speech data in over 180 languages and dialects


Use case

When training your automatic speech recognition (ASR) system, data quality and quantity are both critical. You need high-quality language data to ensure your system can understand and respond to human speech in a variety of environments and contexts. You also need large volumes of data to train your machine learning model effectively and produce the right degree of situation diversity and solution accuracy. It’s important to collect natural language utterances (NLUs), which help train and test applications to recognize the nuances of human speech.

Our approach

Appen’s end-to-end speech data collection service delivers efficiency and quality, even when running multiple large-scale speech collection programs in parallel. Our services include natural language utterance collection through our smartphone app, as well as centralized on-site recordings in a wide range of acoustic environments. Our speech collection services cover a variety of types, including telephony, embedded device, single/multi-speaker, prompt variation, speech modality, text corpora, and other resources.

Our speech data collection services offer you:

  • Detailed linguistic and cultural research
  • Script preparation and localization
  • Crowdsourcing of native speakers
  • Local and remote speech recording
  • Transcription and annotation of collected data
  • Transcription and annotation of collected data
  • Quality assurance and project management
  • Lexicon entries matching database contents

Text Data Collection

Collect millions of high-quality text data samples to scale your solutions globally

Use case

Companies developing technology for new geographic markets require experts with the ability to collect data specific to both language and locale. To expand to new markets, you need a partner that’s experienced in accelerating text data collection projects in a wide variety of settings, all while maintaining the highest levels of quality.

Our approach

Our experts deliver text data collection in any field, including business listings, music titles, artist names, abbreviations and acronyms, food, transportation, computing, or geographical locations. We can collect a wide variety of natural language text data from a range of user demographics and domains. Common use cases for this type of data include the development of software user interfaces, prompts and grammar specifications for voice-interactive devices and automated phone systems, domain-specific lexica, and specialty word lists.

Why Appen?

Appen understands the complex needs of today’s organizations. For more than 20 years, we’ve delivered the highest-quality linguistic data and services, in over 180 languages and dialects, to government agencies and the world’s largest corporations. Our deep linguistic expertise sets us apart in the market, helping ensure accurate data to effectively train your machine learning-based products. Work with Appen to access an experienced crowd of over 1 million people worldwide to help rapidly scale your image, video, speech, and text data collection projects.

Contact us today

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