0004W - Audio Channel Count
v3.0
published
0004W
v3.0
AUDIO CHANNEL COUNT
Number of Audio Channels
Can be Applied to Each Track
Expected Number of Channels
Count Values, Mismatch
https://qc.ebu.io/items/0004W/versions/3-0-0/
Check
Report
Summary
- EBU QC Id
- 0004W
- Name
- Audio Channel Count
- Status
- published
- Category
- objective
- Lead editor
- Andy QUESTED
- Aliases
- number of channels channel count
- Tags
- audio MXF
Versions
| Version | Status | Edition date | Saved by | Note |
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Details
- Description
- Confirmation of the number of audio channels in a file and the number of audio channels in a service.
- Definition
- Used in Checks, the system shall check whether the number of audio channels (per service / in total) indicated in the wrapper matches the expected one specified in the input. Optionally it may report the number of audio channels.
Used in Reports, the system shall report the number of audio channels (per service / in total) indicated in the wrapper. - References
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- Examples
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Input: "Channel Count Expected" = 10
Input: "Channel Count Individual Service Expected" = 5
Output: "Check Result" = false
Output: "Channel Count" = 10
Output: "Channel Count Individual Service" = 2Remark: Used as a Check.
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Input: none
Output: "Channel Count" = 10
Output: "Channel Count Individual Service" = 2Remark: Used as a Report.
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Input parameters
| Name | Default value | Description | Data model name | Unit | Locator |
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Output parameters
| Name | Alias | Description | Data model name | Unit | Locator |
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Test material
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Remarks
- Remarks
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This Test combines the read out of "channel count" of all audio descriptors present. Note that the QC Test Item for "Channel count per track" is #0146W (Latest version) .
Note that for 5.1 audio, 6 channels are relevant.
This Test can be combined with checks on the number / use of audio tracks (see #0029W (Latest version)] and #0030W (Latest version)).
User discussions
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