Altivio

Audio Transcription & Subtitling for Sports Broadcast

Audio Transcription & Subtitling for Sports Broadcast

Overview:

A large crowdsourcing platform partnered with us to deliver high-accuracy transcription and subtitling for a premier league sports broadcaster in India. The project required precise timestamp alignment, linguistic accuracy, and effective handling of high-noise, multi-speaker audio.

Approach:
  • Designed workflows for high-volume audio transcription and subtitling
  • Focused on noise reduction and speaker isolation in complex audio environments
  • Implemented a two-level quality control framework for accuracy and consistency
Execution:
  • L1 Teams: Subtitle creation, transcription, and initial validation
  • L2 Teams: Segment-level review with timestamp-based corrections
  • Iterative feedback loops to minimize errors and improve consistency
  • Managed challenges including crowd noise, overlapping speakers, and long-duration files
Impact:
  • Processed 9,000+ audio files (10–16 minutes each)
  • Delivered accurate English subtitles with precise timestamp synchronization
  • Maintained consistent quality and daily production targets at scale
  • Produced broadcast-ready outputs for seamless viewer experience