public static SRResult GetSRResult(IFormFile file, string language)
{
SRResult result = new SRResult();
string sourcePath = "";
string targetPath = "";
if (file == null)
{
return(null);
}
try
{
string filePath = Path.Combine(Environment.CurrentDirectory, "TemplateDictation");
if (Directory.Exists(filePath) == false)
{
Directory.CreateDirectory(filePath);
}
(sourcePath, targetPath) = Mp3ToWave(file, filePath);
result = MicrosoftSRResult(targetPath, language);
}
catch (Exception ex)
{
LogHelper.WriteLog($"{language}SR", ex);
result = new SRResult("error", "0", ex.Message);
}
finally
{
if (System.IO.File.Exists(sourcePath) == true)
{
System.IO.File.Delete(sourcePath);
}
if (System.IO.File.Exists(targetPath) == true)
{
System.IO.File.Delete(targetPath);
}
}
return(result);
}
private static SRResult MicrosoftSRResult(string audioFile, string language)
{
SRResult result = new SRResult();
string retString = "";
HttpWebRequest request = null;
request = (HttpWebRequest)HttpWebRequest.Create(string.Format(CultureInfo.InvariantCulture, requestUri, language));
request.SendChunked = true;
request.Accept = @"application/json;text/xml";
request.Method = "POST";
request.ProtocolVersion = HttpVersion.Version11;
request.Host = host;
request.ContentType = @"audio/wav; codecs=audio/pcm; samplerate=16000";
request.Headers["Ocp-Apim-Subscription-Key"] = subscriptionKey;
request.AllowWriteStreamBuffering = false;
using (var fs = new FileStream(audioFile, FileMode.Open, FileAccess.Read))
{
/*
* Open a request stream and write 1024 byte chunks in the stream one at a time.
*/
byte[] buffer = null;
int bytesRead = 0;
using (Stream requestStream = request.GetRequestStream())
{
/*
* Read 1024 raw bytes from the input audio file.
*/
buffer = new Byte[checked ((uint)Math.Min(2048, (int)fs.Length))];
while ((bytesRead = fs.Read(buffer, 0, buffer.Length)) != 0)
{
requestStream.Write(buffer, 0, bytesRead);
}
// Flush
requestStream.Flush();
}
}
DateTime beforeDT = System.DateTime.Now;
using (var response = request.GetResponse() as HttpWebResponse)
{
DateTime afterDT = System.DateTime.Now;
TimeSpan ts = afterDT.Subtract(beforeDT);
result.company = "Microsoft";
result.spantime = ((double)ts.TotalMilliseconds / 1000).ToString("f2");
if (response.StatusCode == HttpStatusCode.OK)
{
Stream myResponseStream = response.GetResponseStream();
StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.UTF8);
retString = myStreamReader.ReadToEnd();
var jObject = JObject.Parse(retString);
var text = jObject["DisplayText"];
if (text == null)
{
result.text = null;
}
else
{
result.text = text.ToString().Trim();
}
}
else
{
return(null);
}
}
return(result);
}
