Data annotation

Turn raw material into usable data through audio transcription and quality control, translation and linguistic consulting, alongside speech, text, visual and multimodal annotation.

Aligned audio waveforms and text segments, with a magnifying glass representing transcription, translation and quality review

Audio transcription & quality control

Audio transcription & pronunciation review; Speaker diarization & timestamps
Quality checks for noise, clipping, truncation & volume; Checks for misread or omitted words & audio-text consistency
Emotion, intent & entity labels; Sound event & scene labels
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TTS pronunciation & prosody annotation

Pronunciation lexicons & multilingual phoneme mapping; Phonemes, phonetic symbols & time boundaries
Prosody, intonation & emotion labels; Pronunciation quality & noise conditions
Speech-text alignment & segmentation; Text normalization & pronunciation review
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Translation & linguistic services

Multilingual translation, localization & translation review; Linguistic consulting, terminology & annotation guidelines
Entity, syntax & semantic role annotation; Intent, sentiment, question-answer & summary labels
Instruction & response annotation for SFT; Response preference ranking for RLHF
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Visual & multimodal annotation

Text detection & transcription (OCR); Object detection, keypoints & image classification
Semantic segmentation & scene understanding; Video labels & motion tracking
3D reconstruction & point-cloud annotation; Image-text alignment & multimodal understanding
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Let’s talk about
your data needs.

Share your data types, volume and expected timeline. We’ll discuss a specific plan with you.

Email: business@infinitydataai.com
Phone: +86 18217361038
WhatsApp ↗
Address: Room 3281, 2nd Floor, Building 2, No. 656-658 Wuyi Road, Changning District, Shanghai, China