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Added sample band filter #1

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Added sample band filter #1

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1 change: 1 addition & 0 deletions encoder/build.gradle
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Original file line number Diff line number Diff line change
Expand Up @@ -21,4 +21,5 @@ android {

dependencies {
api 'androidx.annotation:annotation:1.1.0'
implementation files('lib/TarsosDSP-Android-2.4-bin.jar')
}
Binary file added encoder/lib/TarsosDSP-Android-2.4-bin.jar
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31 changes: 26 additions & 5 deletions encoder/src/main/java/com/pedro/encoder/input/audio/MicrophoneManager.java
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Expand Up @@ -9,16 +9,24 @@
import android.os.Handler;
import android.os.HandlerThread;
import android.util.Log;

import com.pedro.encoder.Frame;

import java.nio.ByteBuffer;

import be.tarsos.dsp.AudioDispatcher;
import be.tarsos.dsp.filters.BandPass;
import be.tarsos.dsp.io.TarsosDSPAudioFormat;
import be.tarsos.dsp.io.android.AndroidAudioInputStream;

/**
* Created by pedro on 19/01/17.
*/

public class MicrophoneManager {

private final String TAG = "MicrophoneManager";
private final String FILTER_TAG = "MicrophoneManagerFilter";
private static final int BUFFER_SIZE = 4096;
protected AudioRecord audioRecord;
private GetMicrophoneData getMicrophoneData;
Expand All @@ -34,6 +42,7 @@ public class MicrophoneManager {
private boolean muted = false;
private AudioPostProcessEffect audioPostProcessEffect;
HandlerThread handlerThread;
HandlerThread filterThread;
private CustomAudioEffect customAudioEffect = new NoAudioEffect();

public MicrophoneManager(GetMicrophoneData getMicrophoneData) {
Expand Down Expand Up @@ -136,6 +145,16 @@ public void run() {

private void init() {
if (audioRecord != null) {
final TarsosDSPAudioFormat audioFormat = new TarsosDSPAudioFormat(22050f, 16, 1, true, false);
final AndroidAudioInputStream inputStream = new AndroidAudioInputStream(audioRecord, audioFormat);
final AudioDispatcher audioDispatcher = new AudioDispatcher(inputStream, BUFFER_SIZE, BUFFER_SIZE / 2);
audioDispatcher.addAudioProcessor(new BandPass(440, 500, 1024));

filterThread = new HandlerThread(FILTER_TAG);
filterThread.start();
Handler filterHandler = new Handler(filterThread.getLooper());
filterHandler.post(audioDispatcher);

audioRecord.startRecording();
running = true;
Log.i(TAG, "Microphone started");
Expand Down Expand Up @@ -177,11 +196,13 @@ public synchronized void stop() {
running = false;
created = false;
if (handlerThread != null) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
handlerThread.quitSafely();
} else {
handlerThread.quit();
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
handlerThread.quitSafely();
filterThread.quitSafely();
} else {
handlerThread.quit();
filterThread.quit();
}
}
if (audioRecord != null) {
audioRecord.setRecordPositionUpdateListener(null);
Expand Down