private static string CreateRequestBody(SynthesizeRequest request)
{
var requestSerializer = new DataContractJsonSerializer(typeof(SynthesizeRequest));
var ms = new MemoryStream();
requestSerializer.WriteObject(ms, request);
var json = ms.ToArray();
ms.Dispose();
return(Encoding.UTF8.GetString(json, 0, json.Length));
}
static void Main(string[] args)
{
var app = new CommandLineApplication();
app.Name = "speechtest-dotnet";
app.Description = ".NET Core console app that transforms text to speech using Google's API.";
app.HelpOption("-?|-h|--help");
app.VersionOption("-v|--version", () => {
return(string.Format("Version {0}", Assembly.GetEntryAssembly().GetCustomAttribute <AssemblyInformationalVersionAttribute>().InformationalVersion));
});
var keyOption = app.Option("-k|--key <APIKEY>",
"The Google Cloud API key to use for authentication",
CommandOptionType.SingleValue);
var inputOption = app.Option("-i|--input <TEXT>",
"The text you want to convert to speech",
CommandOptionType.SingleValue);
var outputOption = app.Option("-o| --output <PATH>",
"Path and name of the output wav. Defaults to ./output.wav",
CommandOptionType.SingleValue);
app.OnExecute(() =>
{
if (keyOption.HasValue() && inputOption.HasValue())
{
var testRequest = SynthesizeRequest.CreateMinimalRequest(inputOption.Value());
var responseResult = ProcessRequest(testRequest, keyOption.Value()).Result;
var b = Convert.FromBase64String(responseResult.AudioContent);
var output = outputOption.Value() ?? @"outtest.wav";
System.IO.File.WriteAllBytes(output, b);
}
else
{
Console.WriteLine("No options specified.");
app.ShowHint();
}
return(0);
});
try
{
app.Execute(args);
}
catch (CommandParsingException ex)
{
Console.WriteLine(ex.Message);
}
catch (Exception ex)
{
Console.WriteLine("Unable to execute application: {0}", ex.Message);
}
}
private static async Task <SynthesizeResponse> ProcessRequest(SynthesizeRequest request, string apiKey)
{
if (request == null)
{
throw new ArgumentNullException(nameof(request));
}
var responseSerializer = new DataContractJsonSerializer(typeof(SynthesizeResponse));
client.DefaultRequestHeaders.Accept.Clear();
var url = String.Format("https://texttospeech.googleapis.com/v1beta1/text:synthesize?key={0}", apiKey);
var postResponse = client
.PostAsync(
url,
new StringContent(CreateRequestBody(request), Encoding.ASCII, "application/json")
)
.Result
.Content
.ReadAsStreamAsync();
return(responseSerializer
.ReadObject(await postResponse) as SynthesizeResponse);
}