Description
Measure a supplied broadcast item's signed pre-roll duration.
Communication measurements depend on clock alignment, content units and interval boundaries. Pause time divided by word time differs from pause share of the whole interval, and touching time intervals have no positive overlap. Character budgets must state whether they count code points, code units or another measure.
Measure a supplied broadcast item's signed pre-roll duration.
When to use this tool
Use Broadcast Item Pre Roll Duration when you already have preRollStartSeconds, itemStartSeconds and need to measure a supplied broadcast item's signed pre-roll duration.
How to use the tool and how it works
- Enter preRollStartSeconds, itemStartSeconds. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read signedGap. Use the output convention below.
Return itemStartSeconds-preRollStartSeconds.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| preRollStartSeconds | Pre Roll Start Seconds | Required. Finite number. |
| itemStartSeconds | Item Start Seconds | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| signedGap | Signed Gap | Required. Finite number. |
{
"input": {
"preRollStartSeconds": 12,
"itemStartSeconds": 17
},
"output": {
"signedGap": 5
}
}Limitations and assumptions
- No media, timing, actual pre-roll, rights, technical readiness or appropriate broadcast schedule is verified.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Inspect the original message, recording, transcript and timing or display specification. Use the complete analysis and audience context for communication outcomes; a local delay, overlap or length calculation does not measure comprehension, effectiveness or intent.
References
Similar or alternative tools
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