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