public async Task SyntheticAudio(TtsInputOptions inputOptions, Prosody prosody)
{
ttsToken = new TtsTokenGenerator(this.apiKey).GetAccessToken();
inputOptions.AuthorizationToken = "Bearer " + ttsToken;
TtsSynthesize synthesize = new TtsSynthesize();
synthesize.OnAudioAvailable += SuccessHandler;
synthesize.OnError += ErrorHandler;
try
{
await synthesize.Speak(CancellationToken.None, inputOptions, prosody);
}
catch (Exception ex)
{
}
}
/// <summary>
/// 生成 SSML.
/// </summary>
/// <param name="locale">语种</param>
/// <param name="gender">性别</param>
/// <param name="name">发音人</param>
/// <param name="text">要合成的文本</param>
/// <param name="prosody">音律相关参数</param>
private string GenerateSsml(string locale, string gender, string name, string text, Prosody prosody)
{
var ssmlDoc = new XDocument(
new XElement("speak",
new XAttribute("version", "1.0"),
new XAttribute(XNamespace.Xml + "lang", "en-US"),
new XElement("break",
new XAttribute("time", prosody.time)
),
new XElement("voice",
new XAttribute(XNamespace.Xml + "lang", locale),
new XAttribute(XNamespace.Xml + "gender", gender),
new XAttribute("name", name),
new XElement("prosody",
new XAttribute("rate", prosody.rate),
new XAttribute("volume", prosody.volume),
new XAttribute("pitch", prosody.pitch),
text
)
)
)
);
string lll = ssmlDoc.ToString();
return(ssmlDoc.ToString());
}
/// <summary>
/// 将指定的文本发送到TTS服务，并将响应音频保存到文件中。
/// </summary>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>A Task</returns>
public Task Speak(CancellationToken cancellationToken, TtsInputOptions inputOptions, Prosody prosody)
{
client.DefaultRequestHeaders.Clear();
foreach (var header in inputOptions.Headers)
{
client.DefaultRequestHeaders.TryAddWithoutValidation(header.Key, header.Value);
}
var genderValue = inputOptions.VoiceType.Equals(Gender.Male) ? "Male" : "Female";
var request = new HttpRequestMessage(HttpMethod.Post, inputOptions.RequestUri)
{
Content = new StringContent(GenerateSsml(inputOptions.Locale, genderValue, inputOptions.VoiceName, inputOptions.Text, prosody))
};
var httpTask = client.SendAsync(request, HttpCompletionOption.ResponseHeadersRead, cancellationToken);
var saveTask = httpTask.ContinueWith(
async(responseMessage, token) =>
{
try
{
if (responseMessage.IsCompleted && responseMessage.Result != null && responseMessage.Result.IsSuccessStatusCode)
{
var httpStream = await responseMessage.Result.Content.ReadAsStreamAsync().ConfigureAwait(false);
this.AudioAvailable(new GenericEventArgs <Stream>(httpStream));
}
else
{
this.Error(new GenericEventArgs <Exception>(new Exception(String.Format("Service returned {0}", responseMessage.Result.StatusCode))));
}
}
catch (Exception e)
{
this.Error(new GenericEventArgs <Exception>(e.GetBaseException()));
}
finally
{
responseMessage.Dispose();
request.Dispose();
}
},
TaskContinuationOptions.AttachedToParent, cancellationToken);
return(saveTask);
}
