Demo bing speech api for ANDROID.

about_vn.wav

BingSpeechApi.java

package com.vnzit.testbingspeechapi;

import com.google.gson.Gson;

import org.apache.commons.io.IOUtils;

import java.io.InputStream;
import java.util.concurrent.TimeUnit;

import okhttp3.FormBody;
import okhttp3.HttpUrl;
import okhttp3.MediaType;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;

import static org.junit.Assert.assertNotNull;

/**
 * Created by sh on 7/3/16.
 */
public class BingSpeechApi {

    /**
     * Get string json response from Bing Speech API.
     *
     * @param file WAV audio file.
     */
    public String recognize(final String file, final String bingApiKey) throws Exception {
        final OkHttpClient client = new OkHttpClient.Builder()
                .readTimeout(1, TimeUnit.MINUTES)
                .writeTimeout(1, TimeUnit.MINUTES)
                .build();
        final Gson gson = new Gson();

        final RequestBody bodyIssueToken = new FormBody.Builder()
                .add("grant_type", "client_credentials")
                .add("client_id", bingApiKey)
                .add("client_secret", bingApiKey)
                .add("scope", "https%3A%2F%2Fspeech.platform.bing.com")
                .build();
        final Request requestIssueToken = new Request.Builder()
                .url("https://oxford-speech.cloudapp.net/token/issueToken")
                .post(bodyIssueToken)
                .build();


        final Response responseToken = client.newCall(requestIssueToken).execute();
        final Token token = gson.fromJson(responseToken.body().charStream(), Token.class);
        System.out.println(token.toString());

        assertNotNull(token.getAccessToken());

        final InputStream in = this.getClass().getClassLoader().getResourceAsStream(file);

        final HttpUrl urlRecognize = HttpUrl.parse("https://speech.platform.bing.com/recognize")
                .newBuilder()
                .addQueryParameter("scenarios", "smd")
                .addQueryParameter("appid", "D4D52672-91D7-4C74-8AD8-42B1D98141A5")
                .addQueryParameter("device.os", "Android")
                .addQueryParameter("version", "3.0")
                .addQueryParameter("instanceid", "565D69FF-E928-4B7E-87DA-9A750B96D9E3")
                .addQueryParameter("requestid", "2065F912-3699-408C-A80A-9D17F42B9692")
                .addQueryParameter("format", "json")
                .addQueryParameter("locale", "en-us")

                .build();

        final RequestBody bodyRecognize = RequestBody.create(
                MediaType.parse("audio/wav; codec=\"audio/pcm\"; samplerate=8000"),
                IOUtils.toByteArray(in)
        );
        final Request requestRecognize = new Request.Builder()
                .url(urlRecognize)
                .header("Authorization", "Bearer " + token.getAccessToken())
                .post(bodyRecognize)
                .build();

        final Response responseRecognize = client.newCall(requestRecognize).execute();
        return responseRecognize.body().string();
    }
}

BingSpeechApiUnitTest.java

package com.vnzit.testbingspeechapi;

import com.google.gson.Gson;

import org.apache.commons.io.IOUtils;
import org.junit.Assert;
import org.junit.Test;

import java.io.InputStream;
import java.util.concurrent.TimeUnit;

import okhttp3.FormBody;
import okhttp3.HttpUrl;
import okhttp3.MediaType;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;

import static org.junit.Assert.assertNotNull;

/**
 * To work on unit tests, switch the Test Artifact in the Build Variants view.
 */
public class BingSpeechApiUnitTest {

    @Test
    public void is_bing_speech_api_work() throws Exception {
        final String response = new BingSpeechApi().recognize("about_vn.wav", "YOUR_KEY");
        System.out.println(response);
        Assert.assertNotNull(response);
    }
    
}