{"$schema":"https://json-schema.org/draft/2020-12/schema","additionalProperties":false,"properties":{"response_format":{"default":"mp3","description":"The output format for the audio. Supported formats are mp3, opus, wav, aac and flac.","enum":["mp3","opus","wav","aac","flac"],"type":"string"},"speed":{"default":1,"description":"The speed of the generated audio. Select a value from 0.25 to 4.0. 1.0 is the default.","maximum":4,"minimum":0.25,"type":"number"},"text":{"description":"The text to generate audio for. Maximum length is 4096 characters.","maxLength":4096,"type":"string"},"voice":{"default":"alloy","description":"The voice to use when generating the audio. Defaults to alloy.","enum":["alloy","echo","fable","onyx","nova","shimmer"],"type":"string"}},"required":["text","voice","response_format","speed"],"type":"object"}