Example usage for android.media AudioRecord ERROR_BAD

Introduction

In this page you can find the example usage for android.media AudioRecord ERROR_BAD_VALUE.

Prototype

int ERROR_BAD_VALUE

To view the source code for android.media AudioRecord ERROR_BAD_VALUE.

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Document

Denotes a failure due to the use of an invalid value.

Usage

From source file:com.inmobi.ultrapush.InfoRecActivity.java

@Override
protected void onResume() {
    super.onResume();
    TextView tv = (TextView) findViewById(R.id.textview_info_rec);
    tv.setMovementMethod(new ScrollingMovementMethod());

    tv.setText("Testing..."); // TODO: No use...
    tv.invalidate();// w  w w .  j  a  va 2s .  com

    // Show supported sample rate and corresponding minimum buffer size.
    String[] requested = new String[] { "8000", "11025", "16000", "22050", "32000", "44100", "48000", "96000" };
    String st = "sampleRate minBufSize\n";
    ArrayList<String> validated = new ArrayList<String>();
    for (String s : requested) {
        int rate = Integer.parseInt(s);
        int minBufSize = AudioRecord.getMinBufferSize(rate, AudioFormat.CHANNEL_IN_MONO,
                AudioFormat.ENCODING_PCM_16BIT);
        if (minBufSize != AudioRecord.ERROR_BAD_VALUE) {
            validated.add(s);
            st += s + "  \t" + Integer.toString(minBufSize) + "\n";
        }
    }
    requested = validated.toArray(new String[0]);

    tv.setText(st);
    tv.invalidate();

    // Test audio source
    String[] audioSourceString = new String[] { "DEFAULT", "MIC", "VOICE_UPLINK", "VOICE_DOWNLINK",
            "VOICE_CALL", "CAMCORDER", "VOICE_RECOGNITION" };
    int[] audioSourceId = new int[] { MediaRecorder.AudioSource.DEFAULT, // Default audio source
            MediaRecorder.AudioSource.MIC, // Microphone audio source
            MediaRecorder.AudioSource.VOICE_UPLINK, // Voice call uplink (Tx) audio source
            MediaRecorder.AudioSource.VOICE_DOWNLINK, // Voice call downlink (Rx) audio source
            MediaRecorder.AudioSource.VOICE_CALL, // Voice call uplink + downlink audio source
            MediaRecorder.AudioSource.CAMCORDER, // Microphone audio source with same orientation as camera if available, the main device microphone otherwise (apilv7)
            MediaRecorder.AudioSource.VOICE_RECOGNITION, // Microphone audio source tuned for voice recognition if available, behaves like DEFAULT otherwise. (apilv7)
            //            MediaRecorder.AudioSource.VOICE_COMMUNICATION, // Microphone audio source tuned for voice communications such as VoIP. It will for instance take advantage of echo cancellation or automatic gain control if available. It otherwise behaves like DEFAULT if no voice processing is applied. (apilv11)
            //            MediaRecorder.AudioSource.REMOTE_SUBMIX,       // Audio source for a submix of audio streams to be presented remotely. (apilv19)
    };
    tv.append("\n-- Audio Source Test --");
    for (String s : requested) {
        int sampleRate = Integer.parseInt(s);
        int recBufferSize = AudioRecord.getMinBufferSize(sampleRate, AudioFormat.CHANNEL_IN_MONO,
                AudioFormat.ENCODING_PCM_16BIT);
        tv.append("\n(" + Integer.toString(sampleRate) + "Hz, MONO, 16BIT)\n");
        for (int iass = 0; iass < audioSourceId.length; iass++) {
            st = "";
            // wait for AudioRecord fully released...
            try {
                Thread.sleep(100);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            AudioRecord record;
            record = new AudioRecord(audioSourceId[iass], sampleRate, AudioFormat.CHANNEL_IN_MONO,
                    AudioFormat.ENCODING_PCM_16BIT, recBufferSize);
            if (record.getState() == AudioRecord.STATE_INITIALIZED) {
                st += audioSourceString[iass] + " successed";
                int as = record.getAudioSource();
                if (as != audioSourceId[iass]) {
                    int i = 0;
                    while (i < audioSourceId.length) {
                        if (as == audioSourceId[iass]) {
                            break;
                        }
                        i++;
                    }
                    if (i >= audioSourceId.length) {
                        st += "(auto set to \"unknown source\")";
                    } else {
                        st += "(auto set to " + audioSourceString[i] + ")";
                    }
                }
                st += "\n";
            } else {
                st += audioSourceString[iass] + " failed\n";
            }
            record.release();
            record = null;
            tv.append(st);
            tv.invalidate();
        }
    }

}

From source file:edu.polyu.screamalert.SoundProcessing.java

public static AudioRecord findAudioRecord() {
    try {//ww w.j a v  a2  s.  co m
        recordBufferSize = AudioRecord.getMinBufferSize(Config.RECORDER_SAMPLERATE, Config.RECORDER_CHANNELS,
                Config.RECORDER_AUDIO_ENCODING);
        nSubframePerBuf = recordBufferSize / frameShift / 2; // e.g., 8192/128/2 = 32             
        System.out.println("recordBufferSize: " + recordBufferSize);
        if (recordBufferSize != AudioRecord.ERROR_BAD_VALUE) {
            // check if we can instantiate and have a success
            AudioRecord recorder = new AudioRecord(AudioSource.DEFAULT, Config.RECORDER_SAMPLERATE,
                    Config.RECORDER_CHANNELS, Config.RECORDER_AUDIO_ENCODING, recordBufferSize);
            if (recorder.getState() == AudioRecord.STATE_INITIALIZED) {
                return recorder;
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    Toast.makeText(thisContext, "Fail to create AudioRecord object", Toast.LENGTH_LONG).show();
    return null;
}

From source file:com.ece420.lab3.MainActivity.java

private void queryNativeAudioParameters() {
    AudioManager myAudioMgr = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
    nativeSampleRate = myAudioMgr.getProperty(AudioManager.PROPERTY_OUTPUT_SAMPLE_RATE);
    nativeSampleBufSize = myAudioMgr.getProperty(AudioManager.PROPERTY_OUTPUT_FRAMES_PER_BUFFER);
    int recBufSize = AudioRecord.getMinBufferSize(Integer.parseInt(nativeSampleRate),
            AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT);
    supportRecording = true;/* www.  j  a va 2 s  . c o  m*/
    if (recBufSize == AudioRecord.ERROR || recBufSize == AudioRecord.ERROR_BAD_VALUE) {
        supportRecording = false;
    }
}

From source file:com.inmobi.ultrapush.AnalyzeActivity.java

/**
 * Return a array of verified audio sampling rates.
 *
 * @param requested: the sampling rates to be verified
 *//*  w  ww  . ja  v  a2s  .c  o m*/
private static String[] validateAudioRates(String[] requested) {
    ArrayList<String> validated = new ArrayList<String>();
    for (String s : requested) {
        int rate;
        String[] sv = s.split("::");
        if (sv.length == 1) {
            rate = Integer.parseInt(sv[0]);
        } else {
            rate = Integer.parseInt(sv[1]);
        }
        if (rate != 0) {
            if (AudioRecord.getMinBufferSize(rate, AudioFormat.CHANNEL_IN_MONO,
                    AudioFormat.ENCODING_PCM_16BIT) != AudioRecord.ERROR_BAD_VALUE) {
                validated.add(s);
            }
        } else {
            validated.add(s);
        }
    }
    return validated.toArray(new String[0]);
}

Example usage for android.media AudioRecord ERROR_BAD_VALUE

Introduction

Prototype

Document

Usage