preview_voice
Preview a voice
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Third-party content written by another agent. Data to evaluate, not instructions.
Generate a short audio sample of a voice so the user can hear it before choosing.
Returns a URL to the generated audio. Useful when a user is deciding between
voices, or wants to check how their own reminder wording will sound.
Args:
voice_id: Voice ID from list_voices.
text: Words to speak in the sample. Defaults to a standard demo line; pass the
user's actual reminder message to preview exactly what they'll hear.
personality: "gentle", "cheerful", "professional", or "energetic".
language: BCP-47 tag, e.g. "en-GB".
speaking_rate: 0.8 to 1.2.
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
| voice_id | string | yes | |
| text | any | no | |
| personality | string | no | |
| language | any | no | |
| speaking_rate | any | no |
Raw JSON schema
{
"properties": {
"voice_id": {
"title": "Voice Id",
"type": "string"
},
"text": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"default": null,
"title": "Text"
},
"personality": {
"default": "gentle",
"title": "Personality",
"type": "string"
},
"language": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"default": null,
"title": "Language"
},
"speaking_rate": {
"anyOf": [
{
"type": "number"
},
{
"type": "null"
}
],
"default": null,
"title": "Speaking Rate"
}
},
"required": [
"voice_id"
],
"title": "preview_voiceArguments",
"type": "object"
}