Question 110Asked in BEL PE Computer Science, 20 Dec 2025 (5:00 PM)

A multimedia production team is developing an educational documentary that integrates narration, ambient sound, synchronised animations and live-action…

A multimedia production team is developing an educational documentary that integrates narration, ambient sound, synchronised animations and live-action footage. The final output must maintain lip synchronisation, balanced audio mixing and seamless video transitions for both web streaming and broadcast-quality formats. Which of the following production workflows ensures maximum synchronisation accuracy, audiovisual consistency and cross-platform compatibility?
  1. AUse only compressed streaming formats (like FLV or WMV) during editing to ensure real-time playback, and later convert to broadcast formats through transcoding.
  2. BRecord video and audio separately, use a clapperboard or timecode for synchronisation, perform multi-track audio mixing and colour grading, then export using broadcast-safe codecs (e.g., MXF or ProRes) and adaptive web formats (e.g., MP4/H.264).
  3. CFocus on editing audio first, then align video clips visually using waveform approximation; export all content in uncompressed AVI format for highest fidelity.
  4. DCapture all audio and video simultaneously using a single camera microphone, then edit directly on the timeline to minimise post-production steps.
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Correct answer: (B) Record video and audio separately, use a clapperboard or timecode for synchronisation, perform multi-track audio mixing and colour grading, then export using broadcast-safe codecs (e.g., MXF or ProRes) and adaptive web formats (e.g., MP4/H.264).

From BEL PE Computer Science PYQ, 20 Dec 2025 (5:00 PM)

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