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CineChat Blog
Sound Design•October 2, 2026•4 min read

On-Screen Dialogue Sound Design: Why Audio Engineers Need 48kHz 24-bit WAV Stems

Why mobile keyboard clicks, whooshes, and chime notifications should never be baked permanently into video files in professional film and television mixing.

Broadcast & Theatrical Delivery Standards (EBU R128 / Dolby Atmos)

In film, streaming, and episodic television workflows, audio married directly to an MP4 video file is never used directly in the final mix. Supervising sound editors mix actor dialogue, Foley effects, ambient soundscapes, and score into surround 5.1 or Dolby Atmos configurations with rigorous integrated loudness targets (-24 LUFS / -23 LUFS).

If phone clicks and notification bells are baked directly into a video track, sound designers cannot:

Exporting Dedicated Stems in CineChat Studio

To meet high-end post-production requirements, CineChat Studio features broadcast-grade 24-bit 48kHz WAV stem export:

Clicking "WAV 48kHz (Stems)" generates an uncompressed Broadcast Wave file containing every key click, message send whoosh, and incoming delivery chime, sample-accurately aligned with the video timeline. Audio engineers simply drop the stem into Pro Tools, Nuendo, Reaper, or Fairlight without tedious manual Foley syncing.

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