GET

/v1/schemas/elevenlabs/audio/v1/text-to-dialogue/stream/with-timestamps

kind inputactivity audiohash 1709fb9e…extracted Nov 4, 2026version currentsource upstream spec ↗
fieldrecorded source
schemaSource linked above.

upstream-spec

Source trace
2822892612f818acc2e50f317b3f53a619adac6e296acc9cb15ec1fdc1a24061
{
  "fetchedAt": 1793769627,
  "extractorVersion": "1",
  "verifiedAt": null
}

Request body

13 properties · 1 required · 4 $defs
propertytypedescriptionconstraints
inputs*DialogueInput[]A list of dialogue inputs, each containing text and a voice ID which will be converted into speech. The maximum number of unique voice IDs is 10. For reliable generation, keep the total character count across all `inputs[].text` values at or below 2,000 charac…
model_idstringIdentifier of the model that will be used, you can query them using GET /v1/models. The model needs to have support for text to speech, you can check this using the can_do_text_to_speech property.default: "eleven_v3"
language_codestringLanguage code (ISO 639-1) used to enforce a language for the model and text normalization. If the model does not support the provided language code, it will be ignored. This parameter is not supported for multilingual_v2 models.nullable
settingsToDialogueSettingsResponseModelSettings controlling the dialogue generation.nullable
pronunciation_dictionary_locatorsPronunciationDictionaryVersionLocatorRequestModel[]A list of pronunciation dictionary locators (id, version_id) to be applied to the text. They will be applied in order. You may have up to 3 locators per requestnullable
seedintegerIf specified, our system will make a best effort to sample deterministically, such that repeated requests with the same seed and parameters should return the same result. Determinism is not guaranteed. Must be integer between 0 and 4294967295.nullable
apply_text_normalizationenumThis parameter controls text normalization with three modes: 'auto', 'on', and 'off'. When set to 'auto', the system will automatically decide whether to apply text normalization (e.g., spelling out numbers). With 'on', text normalization will always be applie…auto | on | off · default: "auto"
use_pvc_as_ivcbooleanWhether to use the IVC version of a professional voice. This may improve expressiveness and reduce latency.nullable · deprecated
previous_request_idsstring[]A list of request_ids of dialogue generations that came before this one. Used to condition the model for continuity when splitting a large task into multiple requests. A maximum of 3 request_ids can be sent. The last request_id is the audio which is closest to the current request. Not supported by every model.nullable
next_request_idsstring[]A list of request_ids of dialogue generations that come after this one. Useful for maintaining continuity when regenerating a clip in the middle of a sequence. A maximum of 3 request_ids can be sent. The first request_id is the audio which is closest to the current request. Not supported by every model.nullable
previous_textstringThe text that comes immediately before this generation, used to condition the model for prosodic continuity. A maximum of 100 characters can be sent. Not supported by every model.length ≤ 100 · nullable
future_textstringThe text that comes immediately after this generation, used to condition the model for prosodic continuity. A maximum of 100 characters can be sent. Not supported by every model.length ≤ 100 · nullable
audio_effectsEffectsSpec-InputAudio effects applied to generated speech: a filter preset, perceived distance, a reverb environment, a background noise bed, and stereo panning. Leave every field at its default to get unprocessed audio.nullable

Types

4 $defs

DialogueInputobject

text*stringThe text to be converted into speech.
voice_id*stringThe ID of the voice to be used for the generation.

EffectsSpec-Inputobject

Audio effects applied to generated speech: a filter preset, perceived distance, a reverb environment, a background noise bed, and stereo panning. Leave every field at its default to get unprocessed audio.

filter_preset_idstringID of a filter preset that colors the voice, such as `phone` or `old_radio`. List valid IDs with `GET /v1/audio-effects/catalog`.nullable
distancenumberHow far the speaker sounds from the microphone, from 0 (close, unchanged) to 1 (far). Higher values roll off low and high frequencies and, when an environment is set, shift the balance from the dry voice toward the reverb.0 ≤ n ≤ 1 · default: 0
environment_idstringID of a reverb environment that places the voice in a space, such as `small_room` or `hall`. List valid IDs with `GET /v1/audio-effects/catalog`. Reverb is rendered in stereo and adds a tail of up to several seconds after the speech ends.nullable
background_noise_idstringID of a background noise bed looped under the voice, such as `cafe` or `keyboard`. List valid IDs with `GET /v1/audio-effects/catalog`.nullable
send_levelnumberHow much of the voice feeds the reverb, from 0 (none) to 1 (full). Only applies when `environment_id` is set; 0 turns the reverb off.0 ≤ n ≤ 1 · default: 1
pannumberStereo position of the voice, from -1 (hard left) through 0 (center) to 1 (hard right). Only the voice is panned; reverb and background noise stay centered.-1 ≤ n ≤ 1 · default: 0

PronunciationDictionaryVersionLocatorRequestModelobject

pronunciation_dictionary_id*stringThe ID of the pronunciation dictionary.
version_idstringThe ID of the version of the pronunciation dictionary. If not provided, the latest version will be used.nullable

ToDialogueSettingsResponseModelobject

stabilitynumberDetermines how stable the voice is and the randomness between each generation. Lower values introduce broader emotional range for the voice. Higher values can result in a monotonous voice with limited emotion.0 ≤ n ≤ 1 · nullable
similaritynumberDetermines how strongly the model is guided while generating. Higher values make the model adhere more closely to the voice, at the cost of variation. Not supported by every model.0 ≤ n ≤ 1 · nullable
clone_strengthnumberControls how closely the output matches your professional voice clone samples (0–1). Lower values sound more versatile, while higher values preserve more of the original voice characteristics. We recommend 0 for most use cases, but if you do run into issues 0.5 could be a good fallback. Applies only to professional voice clones fine-tuned for the selected v4 model.0 ≤ n ≤ 1 · nullable

Validate a payload

before you spend tokens
shell
$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"elevenlabs","endpointId":"v1/text-to-dialogue/stream/with-timestamps","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}