57 Etere Basic QC

Etere Basic QC is an integrated module for performing file-based Quality Controls (QC) via T-workflow; it automatically detects and marks audio/video issues (e.g. freeze frames, black frames, scene changes, audio loss) on assets' EDL according to their quality, setting a default quality rating at the end of the process. Etere Basic QC supports major low-resolution formats, including WMV and MP4.
Basic_QC

As shown in the figure above, Etere Basic QC can speed, automate and streamline the operational efficiency of file-based quality controls performed via T-workflow across the entire content life cycle. Etere Basic QC is the best solution for checking audio/video either prior (e.g. playout, re-purpose, archiving) or after (e.g. encoding, ingest, editing, transcoding, archiving) a media operation.

 Audio/video Checks Available

The Etere Basic QC is available only with a valid license; it is based on a T-workflow action which, once included into a T-workflow and attached to all the assets for which a QC is required, will automatically analyse the assets' proxy video to detect and write into its Edit Decision List the following audio/video issues: 

Scene changes: Video stream segment containing brightness differences between consecutive frames.

Black frames: Video stream segment containing black frames and an audio volume lower than a reference level.

Freeze frames: Video stream segment containing a single frame image repeated (as frozen like a snapshot) for a period of time.

Audio silence: Video stream segment containing silent frames (i.e. frames matching a certain quiet audio level and a black video level).

Audio level: Video stream segment presenting "noisy audio signals" which is more significant than a maximum threshold.

Anti-phase audio: Video stream segment containing audio waves with "anti-phase signals", opposite channels which mutually cancel each other out.

Audio loudness: Measurement performed based on the ITU-R BS.1770-1 and ITU-R BS.1770-s2 loudness metering algorithm widely used as a loudness-compliant standard.