Random Fictional Radio Drama Cue Sheet Generator

Description

Place supplied sound descriptions inside compatible dialogue intervals and return a timed synthetic rundown with stable simultaneous cues; audio playback remains app-owned.

A structured creative brief combines a supplied bank of fictional material with explicit sequencing, timing, or compatibility rules. IDs and tags make those constraints inspectable; they do not assess the artistic meaning or quality of a scene.

Place supplied sound descriptions inside compatible dialogue intervals and return a timed synthetic rundown with stable simultaneous cues; audio playback remains app-owned.

When to use this tool

Use this generator to create reproducible fictional radio drama cues cases from the supplied model or bank. Inspect the returned evidence before using cases in a test or exercise.

How to use the tool and how it works

Supply dialogue, sounds in the field shapes below. Set seed when you need an explicit replay.
Run the tool and correct any input error. For generated controls, distinguish a successful fixture containing an invalid case from failure to generate the fixture.
Read rundown, totalSeconds, cueGroups. Use the conventions below. Keep answer-bearing fields separate when presenting an exercise.

Place supplied dialogue beats consecutively in seconds. For each sound, select an eligible beat long enough for its offset and duration, then merge sound and dialogue cues by start time, placing dialogue first on equal starts.^[1]

Input field	Meaning and units	Accepted input
dialogue	Dialogue	Required. Array of Object; no unknown keys.; minimum items 1; maximum items 32.
dialogue[].id	Literal identifier used independently of display labels.	Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 64.
dialogue[].speaker	Speaker	Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 1024.
dialogue[].text	Text	Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 1024.
dialogue[].seconds	Seconds	Required. Safe integer; minimum 1; maximum 9007199254740991.
sounds	Sounds	Required. Array of Object; no unknown keys.; minimum items 1; maximum items 32.
sounds[].id	Literal identifier used independently of display labels.	Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 64.
sounds[].description	Description	Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 1024.
sounds[].eligibleBeatIds	Eligible Beat Ids	Required. Array of Text; minimum UTF-16 length 1; maximum UTF-16 length 64.; minimum items 1; maximum items 32.
sounds[].offsetSeconds	Offset Seconds	Required. Safe integer; minimum 0; maximum 9007199254740991.
sounds[].seconds	Seconds	Required. Safe integer; minimum 1; maximum 9007199254740991.
seed	Optional numeric seed; takes precedence over context randomness. Without either, use the fixed tool.io default seed.	Optional. Safe integer.

Output field	Interpretation	Returned shape
rundown	Rundown	Required. Array of Object; no unknown keys.; minimum items 2; maximum items 64.
rundown[].id	Literal identifier used independently of display labels.	Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 64.
rundown[].kind	Kind	Required. Text; one of "dialogue", "sound".
rundown[].beatId	Beat Id	Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 64.
rundown[].speaker	Speaker	Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 1024. or Null.
rundown[].text	Text	Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 1024.
rundown[].startSecond	Start Second	Required. Safe integer; minimum 0; maximum 9007199254740991.
rundown[].endSecond	End Second	Required. Safe integer; minimum 1; maximum 9007199254740991.
totalSeconds	Total Seconds	Required. Safe integer; minimum 1; maximum 9007199254740991.
cueGroups	Cue Groups	Required. Array of Array of Text; minimum UTF-16 length 1; maximum UTF-16 length 64.; minimum items 1; maximum items 4.; minimum items 1; maximum items 16.
randomness	Replay source and normalized 32-bit seed, or null seed for an advancing context source.	Required. Object; no unknown keys.
randomness.seed	Optional safe-integer replay seed; normalization and precedence are explained below.	Required. Safe integer. or Null.
randomness.source	Source	Required. Text; one of "context", "seed".

An explicit safe-integer seed takes precedence over injected context randomness and is normalized to an unsigned 32-bit integer. With no seed and no context source, replay uses the fixed tool.io default seed. A context source must return finite values from zero inclusive to one exclusive; its advancing state must be retained separately. randomness records the source and normalized seed, or null for context. These generators are not cryptographic random sources.

json

{
  "input": {
    "dialogue": [
      {
        "id": "a",
        "speaker": "Mara",
        "text": "Listen.",
        "seconds": 4
      },
      {
        "id": "b",
        "speaker": "Ivo",
        "text": "I hear it.",
        "seconds": 3
      }
    ],
    "sounds": [
      {
        "id": "bell",
        "description": "Bell",
        "eligibleBeatIds": [
          "a"
        ],
        "offsetSeconds": 1,
        "seconds": 2
      },
      {
        "id": "wind",
        "description": "Wind",
        "eligibleBeatIds": [
          "b"
        ],
        "offsetSeconds": 0,
        "seconds": 3
      }
    ],
    "seed": 42
  },
  "output": {
    "rundown": [
      {
        "id": "a",
        "kind": "dialogue",
        "beatId": "a",
        "speaker": "Mara",
        "text": "Listen.",
        "startSecond": 0,
        "endSecond": 4
      },
      {
        "id": "bell",
        "kind": "sound",
        "beatId": "a",
        "speaker": null,
        "text": "Bell",
        "startSecond": 1,
        "endSecond": 3
      },
      {
        "id": "b",
        "kind": "dialogue",
        "beatId": "b",
        "speaker": "Ivo",
        "text": "I hear it.",
        "startSecond": 4,
        "endSecond": 7
      },
      {
        "id": "wind",
        "kind": "sound",
        "beatId": "b",
        "speaker": null,
        "text": "Wind",
        "startSecond": 4,
        "endSecond": 7
      }
    ],
    "totalSeconds": 7,
    "cueGroups": [
      [
        "a",
        "bell",
        "b",
        "wind"
      ]
    ],
    "randomness": {
      "seed": 42,
      "source": "seed"
    }
  }
}

Limitations and assumptions

Sounds can overlap one another. Every sound must fit at least one declared beat, and total duration describes the dialogue span. No audio is synthesized or stage safety assessed.
A replay requires the same complete input and implementation. The stated sampling convention applies within its eligible space. A finite draw does not exhaust all possible outputs; repeats remain possible unless a distinct-selection rule is explicit.
The field tables state structural bounds; cross-field constraints and bounded search or output budgets also apply. Unknown keys are rejected where the object contract disallows them. Input errors are distinct from null fields and deliberate invalid controls in a successful output.

Alternative or Complementary methods

For a supplied example, inspect the returned construction or delegated check directly. To evaluate a consumer, also test cases chosen for its own boundaries; a generated finite corpus does not establish exhaustive coverage.

References

Tool behavior and example: Random Fictional Radio Drama Cue Sheet Generator — tool.io

Similar or alternative tools

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Random Dialogue Interruption Cue Sheet Generator
Place an exact spaced count of supplied interruption signals at speaker-change boundaries while preserving dialogue order and cumulative seconds.