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0009W - Audio Duration
published
0009W v4.0
Item image
AUDIO DURATION
Reported Audio Duration
SMTPE ST 377-1
Matches Value
Duration Value, Mismatch
https://qc.ebu.io/items/0009W/versions/4-0-0/
Check
Report
Summary
EBU QC Id
0009W
Name
Audio Duration
Status
published
Category
absolute
Lead editor
Friedrich Gierlinger
Aliases
duration container duration run time essence length
Tags
audio MXF
Versions
Version Status Edition date Saved by Note
Details
Description
Specifies the duration of the audio essence container which represents the duration of the wrapped essence.
Definition
Used in Checks, the system shall read out the audio duration indicated in the wrapper container duration metadata and check if it matches the expected one specified in the input. Optionally the system may report the value.

Used in Reports, the system shall read out the audio duration indicated in the wrapper container duration metadata and report it.
References
Examples

  • Input: "Audio Duration Expected" = 7200920 ms
    Input: "Audio Duration Tolerance" = 100 ms

    Output: "Check Result" = false
    Output: "Audio Duration" = 7200720 ms, "track" = 1
    Output: "Audio Duration Mismatch" = 200 ms

    Remark: Used as a Check

  • Input: none
    Output: "Audio Duration" = 7200720 ms

    Remark: Used as a Report

Input parameters
Name Default value Description Data model name Unit Locator
Output parameters
Name Alias Description Data model name Unit Locator
Test material
Title Version Download
Remarks
Remarks
This QC Test is about the duration of the essence container which means the total duration excluding any precharge/rollout.
To check the playout duration please use #0115W (Latest version)

The metadata element in MXF is optional and may not be set.

This Test is a readout only and includes no measurement. For measurements please use #0273W (Latest version)

In MXF the container duration is signalled in edit units. Please note that the output unit for this test is ms.

If the metadata appears more than one time in the file, the Track and WrapperLocator (implicit) attributes may be used.
User discussions
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