Question

这是我的主要活动，我相信所有你需要看看是否有人可以帮助我....

package com.art.drumdrum;

import android.app.Activity;
import android.media.AudioManager;
import android.media.SoundPool;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;

public class MainActivity extends Activity {
SoundPool soundPool = null;
int kickId = 0;
int snareId = 0;
int crashhId = 0;
int crashlId = 0;
int muteId = 0;

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

    Button kick = (Button) findViewById(R.id.kick);
    Button snare = (Button) findViewById(R.id.snare);
    Button crashh = (Button) findViewById(R.id.crashh);
    Button crashl = (Button) findViewById(R.id.crashl);

    kick.setOnTouchListener(new View.OnTouchListener() {

        @Override
        public boolean onTouch(View v, MotionEvent event) {
            if (event.getAction() == MotionEvent.ACTION_DOWN
                    || event.getAction() == MotionEvent.ACTION_POINTER_DOWN)
                soundPool.play(kickId, 1, 1, 0, 0, 1);
            return false;
        }
    });
    snare.setOnTouchListener(new View.OnTouchListener() {

        @Override
        public boolean onTouch(View v, MotionEvent event) {
            if (event.getAction() == MotionEvent.ACTION_DOWN
                    || event.getAction() == MotionEvent.ACTION_POINTER_DOWN)
                soundPool.play(snareId, 1, 1, 0, 0, 1);
            return false;
        }
    });
    crashh.setOnTouchListener(new View.OnTouchListener() {

        @Override
        public boolean onTouch(View v, MotionEvent event) {
            if (event.getAction() == MotionEvent.ACTION_DOWN
                    || event.getAction() == MotionEvent.ACTION_POINTER_DOWN)
                soundPool.play(crashhId, 1, 1, 0, 0, 1);
            return false;
        }
    });
    crashl.setOnTouchListener(new View.OnTouchListener() {

        @Override
        public boolean onTouch(View v, MotionEvent event) {
            if (event.getAction() == MotionEvent.ACTION_DOWN
                    || event.getAction() == MotionEvent.ACTION_POINTER_DOWN)
                soundPool.play(crashlId, 1, 1, 0, 0, 1);
            return false;
        }
    });

}

protected void onResume() {
    super.onResume();
    if (soundPool == null) {
        soundPool = new SoundPool(20, AudioManager.STREAM_MUSIC, 0);
        kickId = soundPool.load(this, R.raw.kick, 1);
        snareId = soundPool.load(this, R.raw.snare, 1);
        crashhId = soundPool.load(this, R.raw.crashh, 1);
        crashlId = soundPool.load(this, R.raw.crashl, 1);
    }
}

protected void onPause() {
    super.onPause();
    if (soundPool != null) {
        soundPool.release();
        soundPool = null;
    }
}

}

我想知道在我尝试做什么的情况下，使用JetPlayer是否会比soundPool更好。我有它，所以我可以同时打多个按钮和声音播放，一切看起来都很好，但是当你按下按钮直到它播放声音时会有一个小的延迟，使声音变得不自然....我我一直在查找信息并找不到任何帮助，是否有简单的答案或是需要更多代码甚至可能是某些c ++的东西？

Answer 1

据我所知，JetPlayer不适用于此，因为它旨在实现MIDI音频同步。在Jet音频引擎中，除非您停止所有以前播放的声音（JetPlayer#clearQueue()），否则在按下按钮时无法播放声音。

对于Android音频延迟问题，没有简单的答案。使用C ++（OpenSL ES）可能会获得更好的延迟，但我对此并不了解。请参阅相关答案：https://stackoverflow.com/a/12309643

Jetplayer vs. soundPool？

1 个答案: