经过测试，发现微软的语音服务在发音方面略强于科大讯飞。
using Microsoft.CognitiveServices.Speech;
...
public async Task SynthesisToSpeakerAsync(string text)
{
if (text == "")
{
textBox1.Text += $"识别读取文本： [{text}]\r\n";
return;
}
var config = SpeechConfig.FromSubscription("6666666666666666", "westus2");
config.SpeechRecognitionLanguage = "zh-CN";
config.SpeechSynthesisLanguage = "zh-CN";
//https://docs.microsoft.com/en-us/azure/cognitive-services/speech-service/language-support#neural-voices
config.SpeechSynthesisVoiceName = comboBox1.Text;
synthesizer = null;
using (synthesizer = new SpeechSynthesizer(config))
{
using (var result = await synthesizer.SpeakTextAsync(text))
{
if (result.Reason == ResultReason.SynthesizingAudioCompleted)
{
AudioCompleted = true;
textBox1.Text += $"识别读取文本： [{text}]\r\n";
}
else if (result.Reason == ResultReason.Canceled)
{
var cancellation = SpeechSynthesisCancellationDetails.FromResult(result);
textBox1.Text += ($"CANCELED: Reason={cancellation.Reason}\r\n");
if (cancellation.Reason == CancellationReason.Error)
{
textBox1.Text += ($"CANCELED: ErrorCode={cancellation.ErrorCode}\r\n");
textBox1.Text += ($"CANCELED: ErrorDetails=[{cancellation.ErrorDetails}]\r\n");
textBox1.Text += ($"CANCELED: Did you update the subscription info?\r\n");
}
}
}
// This is to give some time for the speaker to finish playing back the audio
}
}
