英文:
Android equalizer not working with AudioTrack
问题
以下是翻译好的内容：
我正在使用 Android 均衡器 API 创建高通滤波器。但是，即使我将每个频段都设置为 -1500，似乎也没有起作用。音频播放得很好，但没有均衡效果。以下是我的代码。
private void attachEq(int audioSessionId) {
Equalizer eq = new Equalizer(100, audioSessionId);
short[] freqRange = eq.getBandLevelRange();
short minLvl = freqRange[0];
short maxLvl = freqRange[1];
eq.setBandLevel((short) 4, minLvl);
eq.setBandLevel((short) 3, minLvl);
eq.setBandLevel((short) 2, minLvl);
eq.setBandLevel((short) 1, minLvl);
eq.setBandLevel((short) 0, minLvl);
}
我通过以下方式获取音频会话 ID：
at.getAudioSessionId()
其中 at 是已初始化的 AudioTrack。正如我所说，AudioTrack 播放得很好，但是均衡器似乎没有任何效果。
编辑：我在调用 at.play() 之前还是之后设置频段级别？我是在 at.play() 之前设置的，但似乎没有起作用。
英文:
I am using android equalizer API to create a high pass filter. But even if I set every band to -1500 it does not seems to work. The audio is playing well but no eq effects. Here is my code.
private void attachEq(int audioSessionId) {
Equalizer eq = new Equalizer(100,audioSessionId);
short[] freqRange = eq.getBandLevelRange();
short minLvl = freqRange[0];
short maxLvl = freqRange[1];
eq.setBandLevel((short) 4,minLvl);
eq.setBandLevel((short) 3,minLvl);
eq.setBandLevel((short) 2,minLvl);
eq.setBandLevel((short) 1,minLvl);
eq.setBandLevel((short) 0,minLvl);
}
I am getting the audio session-id by
> at.getAudioSessionId()
where at is an already initialized AudioTrack. As I said AudioTrack is playing fine but eq doesn't seem to have any effect.
Edit: Do I have to set band levels before I call at.play() or after? I am doing it before at.play() and it doesn't seem to work.
答案1
得分: 2
我搞清楚了！我没有调用 eq.setEnabled(true)。现在它正常工作了！
英文:
I figured it out! I wasn't calling eq.setEnabled(true).
Now it works!
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