What needs to be clarified
Examine channel differences and mixing effects on speech preservation, identify usable listening passages and describe the limits of processing the original.
Materials to prepare
- Original stereo file without forwarding-related transcoding
- Mono copy associated with the audibility dispute
- Mixing software information and disputed time intervals
What to compare
Check channels, file parameters and corresponding intervals. Listen separately and examine waveform, levels, timing and phase relationships. Compare the mono copy for attenuation during summation, clipping and dropouts. Check every processed result against the unprocessed recording and document changes.
Possible outcome of the analysis
Results may include a technical loss assessment, usable-interval annotations and a listening version if processing helps, retaining the original and a record of operations.
Limits of the conclusions
Amplification cannot restore missing speech or guarantee intelligibility. Unclear words cannot be filled from expectation; equipment details may be needed to explain channel differences.