speed?: number;

instructions?: string;

responseFormat?: OpenAiSpeechResponseFormat;

extraBody?: Record<string, unknown>;

};

type OpenAITtsProviderOverrides = {

}

}

function readExtraBody(value: unknown): Record<string, unknown> | undefined {

const body = asObjectRecord(value);

if (!body || Object.keys(body).length === 0) {

return undefined;

}

return body;

}

function normalizeOpenAIProviderConfig(

rawConfig: Record<string, unknown>,

): OpenAITtsProviderConfig {

const raw = resolveOpenAIProviderConfigRecord(rawConfig);

const extraBody = readExtraBody(raw?.extraBody) ?? readExtraBody(raw?.extra_body);

return {

apiKey: normalizeResolvedSecretInputString({

value: raw?.apiKey,

speed: asFiniteNumber(raw?.speed),

instructions: trimToUndefined(raw?.instructions),

responseFormat: normalizeOpenAISpeechResponseFormat(raw?.responseFormat),

extraBody,

};

}

instructions: trimToUndefined(config.instructions) ?? normalized.instructions,

responseFormat:

normalizeOpenAISpeechResponseFormat(config.responseFormat) ?? normalized.responseFormat,

extraBody: readExtraBody(config.extraBody) ?? readExtraBody(config.extra_body),

};

}

speed: overrides.speed ?? config.speed,

instructions: config.instructions,

responseFormat,

extraBody: config.extraBody,

timeoutMs: req.timeoutMs,

});

return {

speed: overrides.speed ?? config.speed,

instructions: config.instructions,

responseFormat: outputFormat,

extraBody: config.extraBody,

timeoutMs: req.timeoutMs,

});

return { audioBuffer, outputFormat, sampleRate };