Android and ACRCloud: startRecording() called on an uninitialized AudioRecord

Question

I am designing a simple app for music recognition using this SDK https://www.acrcloud.com/docs/audio-fingerprinting-sdks/android-sdk/

The demo provided by the SDK functions perfectly on my phone, target Android SDK is 18. I am currently developing this app on minSdkVersion 19and targetSdkVersion 24. Code wise, nothing is different from the demo except for the Activity's layout.

Here's my code:

import com.dd.CircularProgressButton;

import com.acrcloud.rec.sdk.ACRCloudConfig;
import com.acrcloud.rec.sdk.ACRCloudClient;
import com.acrcloud.rec.sdk.IACRCloudListener;
import com.acrcloud.rec.sdk.utils.ACRCloudLogger;

import android.graphics.Color;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

public class MainActivity extends AppCompatActivity implements IACRCloudListener {

    //Main recognition class and config objects
    private ACRCloudClient mClient;
    private ACRCloudConfig mConfig;

    private TextView successOrFail;

    private CircularProgressButton recognitionButton;

    //recognition flags
    private boolean mProcessing = false;
    private boolean initState = false;

    //path for local db, if necessary
    //private String path = "";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main_activity);


        recognitionButton = (CircularProgressButton) findViewById(R.id.startRecognition);
        recognitionButton.setIndeterminateProgressMode(true);
        recognitionButton.setText(R.string.rec_start);
        recognitionButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                start();
                recognitionButton.setProgress(50);
            }
        });

        final CircularProgressButton cancelButton = (CircularProgressButton) findViewById(R.id.stopRecogition);
        cancelButton.setText(R.string.rec_cancel);
        cancelButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                cancel();
                cancelButton.setProgress(-1);
            }
        });

        successOrFail = (TextView) findViewById(R.id.successOrFailView);

        //Configure ACRCloud
        this.mConfig = new ACRCloudConfig();
        this.mConfig.acrcloudListener = this;
        this.mConfig.context = this;
        this.mConfig.host = "xxxxxxxxxxxxxx";
        this.mConfig.accessKey = "xxxxxxxxxxxxxxxx";
        this.mConfig.accessSecret = "xxxxxxxxxxxxxxxx";
        this.mConfig.reqMode = ACRCloudConfig.ACRCloudRecMode.REC_MODE_REMOTE;

        this.mClient = new ACRCloudClient();

        this.initState = this.mClient.initWithConfig(this.mConfig);
        if (this.initState) {
            this.mClient.startPreRecord(3000);
        }
    }


    //Start recognition
    public void start() {
        if (!this.initState) {
            Toast.makeText(this, "init error", Toast.LENGTH_SHORT).show();
            return;
        }

        if (!mProcessing) {
            mProcessing = true;
            if (this.mClient == null || !this.mClient.startRecognize()) {
                mProcessing = false;
                //mResult.setText("start error!");
            }
        }
    }

    //recognition canceled
    protected void cancel(){
        if(mProcessing && this.mClient != null){
            mProcessing = false;
            this.mClient.cancel();
        }
    }


    //handle result
    @Override
    public void onResult(String result) {
        if (this.mClient != null) {
            this.mClient.cancel();
            mProcessing = false;
        }


        try {
            JSONObject j = new JSONObject(result);
            JSONObject j1 = j.getJSONObject("status");
            int j2 = j1.getInt("code");
            if(j2 == 0){
                successOrFail.setVisibility(View.VISIBLE);
                successOrFail.setText(R.string.success);
                recognitionButton.setProgress(100);
            }else{
                successOrFail.setVisibility(View.VISIBLE);
                successOrFail.setText(R.string.error);
                recognitionButton.setProgress(0);
            }
        } catch (JSONException e) {
            e.printStackTrace();
        }
    }

    @Override
    public void onVolumeChanged(double volume){

    }


    @Override
    protected void onDestroy() {
        super.onDestroy();
        Log.e("MainActivity", "release");
        if (this.mClient != null) {
            this.mClient.release();
            this.initState = false;
            this.mClient = null;
        }
    }
}

and I am receiving this exception

08-31 16:38:20.119 29895-30448/musicmappr.abon219.com.musicmappr_prototype1 W/System.err: java.lang.IllegalStateException: startRecording() called on an uninitialized AudioRecord.
08-31 16:38:20.119 29895-30448/musicmappr.abon219.com.musicmappr_prototype1 W/System.err:     at android.media.AudioRecord.startRecording(AudioRecord.java:943)
08-31 16:38:20.119 29895-30448/musicmappr.abon219.com.musicmappr_prototype1 W/System.err:     at com.acrcloud.rec.record.ACRCloudRecorder.startRecording(ACRCloudRecorder.java:64)
08-31 16:38:20.119 29895-30448/musicmappr.abon219.com.musicmappr_prototype1 W/System.err:     at com.acrcloud.rec.sdk.worker.ACRCloudWorker.run(ACRCloudWorker.java:215)
08-31 16:38:20.139 29895-30448/musicmappr.abon219.com.musicmappr_prototype1 I/System.out: (HTTPLog)-Static: isSBSettingEnabled false
08-31 16:38:20.139 29895-30448/musicmappr.abon219.com.musicmappr_prototype1 I/System.out: (HTTPLog)-Static: isSBSettingEnabled false
08-31 16:38:21.789 29895-30448/musicmappr.abon219.com.musicmappr_prototype1 W/System.err: java.lang.IllegalStateException: stop() called on an uninitialized AudioRecord.
08-31 16:38:21.789 29895-30448/musicmappr.abon219.com.musicmappr_prototype1 W/System.err:     at android.media.AudioRecord.stop(AudioRecord.java:996)
08-31 16:38:21.789 29895-30448/musicmappr.abon219.com.musicmappr_prototype1 W/System.err:     at com.acrcloud.rec.record.ACRCloudRecorder.release(ACRCloudRecorder.java:133)
08-31 16:38:21.789 29895-30448/musicmappr.abon219.com.musicmappr_prototype1 W/System.err:     at com.acrcloud.rec.sdk.worker.ACRCloudWorker.resumeRecognize(ACRCloudWorker.java:126)
08-31 16:38:21.789 29895-30448/musicmappr.abon219.com.musicmappr_prototype1 W/System.err:     at com.acrcloud.rec.sdk.worker.ACRCloudWorker.run(ACRCloudWorker.java:222)

any advice on this issue would be greatly, greatly appreciated

score 1 · Answer 1 · answered Sep 01 '16 at 02:33

1

Did you use Android emulator to test? The Android emulator does't use the computer's Mic.

answered Sep 01 '16 at 02:33

Tony Li

95
5

No, this is on an actual device, and this is more of a comment really. – Anthony Bonarrigo Sep 01 '16 at 03:34
Which version of Android do you use? May you retry the demo project with lower targetSdkVersion? – Tony Li Sep 01 '16 at 09:42

score 0 · Accepted Answer · answered Sep 26 '16 at 00:13

Since no answers were provided, I'll provide my own input to help anyone using this SDK with this issue.

Beyond API level 23, you are REQUIRED to ask user for permissions. Adding the permission to the AndroidManifest isn't enough. The following code snippet is an example:

if(ContextCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) ActivityCompat.requestPermissions(this, new String[{Manifest.permission.RECORD_AUDIO}, 1);

Android and ACRCloud: startRecording() called on an uninitialized AudioRecord

2 Answers2