"Worksheet","Distinguish dual mono, stereo and a missing dialogue channel","Evidence status","Your configuration"
"Purpose","Inspect channel content and the recipient’s required routing. Two channels can contain a stereo scene, two independent microphones or one useful signal plus silence.","Proposed workflow",""
"Check","Question to record","Decision","Your observation"
"Stereo pair","Related left/right scene","Preserve intended image",""
"Dual mono","Independent microphones","Route deliberately",""
"One silent channel","Incomplete or intentional layout","Resolve against brief",""
"Example","A hypothetical interview has the presenter on the left channel and the guest on the right. Treating the file as a finished stereo mix can put each voice on only one side. The useful correction is an intentional dialogue routing and mix, followed by a level check, rather than a blind loudness gain.","Illustrative; not a measured product result",""
"Source","https://ffmpeg.org/ffprobe.html https://helpx.adobe.com/uk/premiere/desktop/render-and-export/export-files/overview-of-export-settings.html","Official references; scope in article",""
"Result","Accepted / unresolved / needs correction","Record date and configuration",""