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Text To Speech

Convert text to speech audio using streaming.

This example assumes using tryAGI.OpenAI; is in scope and apiKey contains your tryAGI.OpenAI API key.

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using var client = new OpenAiClient(apiKey);

using var memoryStream = new MemoryStream();
await foreach (var streamEvent in client.Audio.CreateSpeechAsEventStreamAsync(
    model: CreateSpeechRequestModel.Gpt4oMiniTts,
    input: "Hello! This is a text-to-speech test.",
    voice: AnyOf<AnyOf<VoiceIdsShared?, CreateSpeechRequestVoice?>?, CreateSpeechRequestVoice2>.FromValue1(
        AnyOf<VoiceIdsShared?, CreateSpeechRequestVoice?>.FromValue1((VoiceIdsShared)VoiceIdsSharedEnum.Alloy)),
    responseFormat: CreateSpeechRequestResponseFormat.Mp3,
    speed: 1.0,
    streamFormat: CreateSpeechRequestStreamFormat.Sse))
{
    if (streamEvent.SpeechAudioDelta is { } delta)
    {
        byte[] chunk = Convert.FromBase64String(delta.Audio);
        memoryStream.Write(chunk, 0, chunk.Length);
    }
}

byte[] audio = memoryStream.ToArray();

Console.WriteLine($"Generated {audio.Length} bytes of audio.");