How to integrate Bing Speech API

Daradonn

Hi,
I'm trying to integrate Bing Speech API, because the local speech recognition only supports english. The problem is, that both the client library and the documentation for the REST API, isn't compatible with UAP.
I have no idea how I can connect. Do you have an idea or maybe a working code snippet?
Kind regards from Germany

trzy

Unfortunately I don't have an answer for this but I'm also curious. Connectivity shouldn't be a big problem, though -- should be doable with raw sockets, no?

But what about recording snippets of voice? I haven't looked in detail at the relevant microphone APIs but is there a way for the microphone to detect when the user is likely to have started and then stopped speaking, so as to avoid having to continually record and monitor the audio stream in order to manually extract dialog out?

Daradonn

Recording is pretty easy. In the HoloToolkit there is a class called MicStream.
So you just have to use the following lines:

//Start Recording
MicStream.MicInitializeDefault((int)MicStream.StreamCategory.HIGH_QUALITY_VOICE);
MicStream.MicStartRecording("record.wav", true);

//Stop Recording
String filePath = MicStream.MicStopRecording();

I don't know what my problem with the connection is.
Getting the token works fine, but sending the audio to get the response times out.
This is my code:

private string requestUri= "https://speech.platform.bing.com/speech/recognition/dictation/cognitiveservices/v1?language=de-DE";


//calling the sending task from another method
string result = await SendRequestAsync(requestUri, authentication.GetAccessToken(), "audio/wav; samplerate=16000", filePath);


//the sending task
private async Task<string> SendRequestAsync(string url, string bearerToken, string contentType, string filePath)
    {
        var content = new StreamContent(File.OpenRead(@filePath));
        content.Headers.TryAddWithoutValidation("Content -Type", contentType);

        using (var httpClient = new HttpClient())
        {
            httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", bearerToken);
            var response = await httpClient.PostAsync(url, content).ConfigureAwait(false);

            return await response.Content.ReadAsStringAsync();
        }
    }