Microsoft speech to text is not identifying other than english language - speech-to-text

Question

I am using microsoft speech to text service. my requirement is to identify and convert any spoken language on microphone should converted on text . example if i speak spanish then i should get spanish language text as response.
here is my code and am setting config by providing subscription key and endpoint url
var config = SpeechConfig.FromHost(new Uri("ws://xxxxxxxx:5000/"));
using (var recognizer = new SpeechRecognizer(config))
{
Console.WriteLine("Say something...");
var result = await recognizer.RecognizeOnceAsync();
// Checks result.
if (result.Reason == ResultReason.RecognizedSpeech)
{
Console.WriteLine($"We recognized: {result.Text}");
}
}
Please help me how to get converted any speech to text languages.

Answer 1

A common task for speech recognition is specifying the input (or source) language. Let's take a look at how you would change the input language to German. In your code, find your SpeechConfig, then add this line directly below it.
speech_config.speech_recognition_language="de-DE"
speech_recognition_language is a parameter that takes a string as an argument. You can provide any value in the list of supported locales/languages.
Please use the locale in the table https://learn.microsoft.com/en-us/azure/cognitive-services/speech-service/language-support#speech-to-text
-Yutong

Answer 2

You can use language detection in the Speech Recognizer processing, see doc here
It has some limitations in terms of languages (see language support here).
How?
For a C# implementation, you should switch "Latency" to "Accuracy" depending on priority on the speechConfig object:
speechConfig.SetProperty(PropertyId.SpeechServiceConnection_SingleLanguageIdPriority, "Latency");
Add an AutoDetectSourceLanguageConfig config to your SpeechRecognizer:
Then you can have your result:
var autoDetectSourceLanguageConfig =
AutoDetectSourceLanguageConfig.FromLanguages(
new string[] { "en-US", "de-DE", "ja-JP", "de-DE" });
using var audioConfig = AudioConfig.FromDefaultMicrophoneInput();
using (var recognizer = new SpeechRecognizer(
speechConfig,
autoDetectSourceLanguageConfig,
audioConfig))
{
var speechRecognitionResult = await recognizer.RecognizeOnceAsync();
var autoDetectSourceLanguageResult =
AutoDetectSourceLanguageResult.FromResult(speechRecognitionResult);
var detectedLanguage = autoDetectSourceLanguageResult.Language;
}