体积沟道

本文介绍了体积沟道的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

这样的问题：我有记录的两声道的视频文件。我想这个code关掉左声道：

Such Problem: I have video file recorded with two sound channels. I tried to switch off left sound channel by this code:

MediaPlayer mp;

....

mp.setVolume(0.f, 1f);

...和平板这项工作好（右通道音量的声音很好）。但后来我想它是在Google，我连接到三星UE46ES6307U这code没有工作，声音swichs关闭。
也许是界限，以杜比数字+ /杜比睿波音频？我可以采用某种编程发现如何声道设备都有，什么量在每个chanels setuped？

... and on Tablet this work good (right volume channel sounds well). But then I tried it on googleTv which I connect to Samsung UE46ES6307U and this code did not work, sound swichs off.Maybe it is bounds to Dolby Digital Plus / Dolby Pulse audio? Can I somehow programmatically discover how sound channels device has, and what volume in each chanels setuped?

更新：
在这个论坛上的在回复一条这样的消息：罗技还没有想出如何管的多声道音频直通hdmi.you必须使用光纤输出这是OK。

Update:On this forum http://www.googletvforum.org/forum/logitech-revue/375-audio-problems-logitech-revue.html in one of replies such message: "Logitech has not yet figured out how to pipe multichannel audio thru hdmi.you have to use the optical output. Which is ok."

你是如何构建的MediaPlayer？

Videoview vv;
...............

        vv.setOnPreparedListener(new OnPreparedListener() {
            @Override
            public void onPrepared(MediaPlayer mp) {
                mp.setVolume(0.f, 1f);
            }
        });

更新：

public class MainActivity extends Activity {
    MediaPlayer mp = null;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        if (mp != null) {
            mp.reset();
            mp.release();
        }

        mp = MediaPlayer.create(this, R.raw.test);
        mp.start();

    }

    public void onTurnOffLeft(View v){
        mp.setVolume(0.f, 1.f);
    }

    public void onTurnOffRight(View v){
        mp.setVolume(1.f, 0.f);
    }
}

方法onTurnOffLeft交换机关闭所有声音，onTurnOffRight方法没有效果。

Method onTurnOffLeft switchs off all sound, and onTurnOffRight method has no effect.

UPDATE2

我试着玩Vorbis的codeC codded .OGG音频文件 - 通道关闭好。但我试图发挥codded与MP3，AC3，PCM，AAC格式的视频文件 - 和问题，关闭通道仍然存在......我需要关闭视频音频通道，而是如何解决这个问题，我不知道然而。

I tried to play .ogg audio file codded with Vorbis codec - channels turns off well. But I tried to play video files codded with mp3, ac3, pcm, aac - and problem with turning off channels is still there... I need to turn off audio channels in video, but how to solve that problem, I do not know yet.

codded

问题描述

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