IFB Earpiece Latency Ms Budget Calculator

Compute IFB latency budget over explicit caller acyclic stage dependencies using max predecessor critical path, not incorrectly summing parallel stages; fixed latency model, no network jitter, clocks, measured equipment latency or hearing-safety assurance.

Description

Latency through parallel stages follows a critical path.

Latency through parallel stages follows a critical path. Adding every stage would overcount branches that operate concurrently.^[1]

Enter nonempty nonnegative latencies, aligned square binary matrix where row i names predecessor columns, and nonnegative budget. Topologically evaluate; cycles including self-dependencies fail. Return arrivals, maximum and inclusive gate.

When to use IFB Earpiece Latency Ms Budget Calculator

Use IFB Earpiece Latency Ms Budget Calculator when you need to evaluate the supplied records under the calculation and evidence rules below. No jitter, clocks, equipment measurement or hearing-safety assurance is provided.

Prepare the actual editorial, source, layout, timing or audience records requested. Supply explicit house-policy limits and preserve missing evidence.

How to use IFB Earpiece Latency Ms Budget Calculator and understand its results

Prepare the actual editorial, source, layout, timing or audience records requested. Supply explicit house-policy limits and preserve missing evidence.
Enter stageLatenciesMs, predecessorDependencyFlags, callerMaximumEndToEndLatencyMs using the field table and calculation rules, then run the tool.
Read criticalArrivalLatenciesMs, modeledCriticalPathLatencyMs, withinCallerLatencyBudget. The explanation below defines the units, signs, ordering and any flags or placeholder values.
If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.

Input field	Meaning	Value type; see rules below	Requirement
stageLatenciesMs	Stage latencies ms	list of number	Required
predecessorDependencyFlags	Predecessor dependency flags	list of list of number	Required
callerMaximumEndToEndLatencyMs	Caller maximum end to end latency ms	number	Required

arrival[i]=latency[i]+max(arrival of required predecessors), default0

Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.

Output field	Meaning	Value type
criticalArrivalLatenciesMs	Critical arrival latencies ms	list of number
modeledCriticalPathLatencyMs	Modeled critical path latency ms	number
withinCallerLatencyBudget	Within caller latency budget	boolean

json

{
  "input": {
    "stageLatenciesMs": [
      10,
      20,
      30
    ],
    "predecessorDependencyFlags": [
      [
        0,
        0,
        0
      ],
      [
        1,
        0,
        0
      ],
      [
        1,
        0,
        0
      ]
    ],
    "callerMaximumEndToEndLatencyMs": 35
  },
  "output": {
    "criticalArrivalLatenciesMs": [
      10,
      30,
      40
    ],
    "modeledCriticalPathLatencyMs": 40,
    "withinCallerLatencyBudget": false
  }
}

Limitations and assumptions

No jitter, clocks, equipment measurement or hearing-safety assurance is provided.

Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Matrices are limited to 128 rows and 128 entries per row. Numeric lists are limited to 10,000 entries; string lists to 128 strings of at most 128 characters each. The rules above may impose smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors. A successfully returned false flag is an evaluated outcome; its meaning is explained above.

Alternative or Complementary methods

Use Delay Tower Time Alignment MS Distance Calculator: Delay alignment compares acoustic paths and electronic latencies at each seat. One delay value may not align every location. For a complementary task, use IFB Comms Beltpack Channel Tree Lookup: A directed communications graph describes routing reachability. Return-to-root paths differ from general reachable cycles.

References

IFB Earpiece Latency Ms Budget Calculator — tool.io

Similar or alternative tools

Delay Tower Time Alignment MS Distance Calculator
Delay alignment compares acoustic paths and electronic latencies at each seat. One delay value may not align every location.
IFB Comms Beltpack Channel Tree Lookup
A directed communications graph describes routing reachability. Return-to-root paths differ from general reachable cycles.