在Android的均衡器波段数量 [英] Number of bands in Android Equalizer

问题描述

我的问题很简单：什么是所提供的带的默认数量的内置Android均衡器？此外，什么是乐队的保证最少？

My question is simple: what is the default number of the bands provided by the built-in android equalizer? Also, what is the guaranteed minimum number of bands?

据我研究，答案似乎是5，但它不很好的记录。然而，在我的设备，这是目前测试它，我得到了以下结果：

As far as I researched, the answer appears to be 5, but it is not very well documented. However, testing it on my devices, which is currently available, I got the following result:

• HTC Desire S的运行Android 2.3.5： 5 带
• 在索尼Xperia TIPO运行Android 4.0.x的： 5 带
• 然而，的Nexus 4运行的是Android 4.3.1： 6 带

• HTC Desire S running android 2.3.5: 5 bands
• Sony Xperia Tipo running android 4.0.x: 5 bands
• however, Nexus 4 running Android 4.3.1: 6 bands

我得到theese号码的方法如下：

The way I get theese numbers is the following:

MediaPlayer mp=new MediaPlayer(this);
/* some initialization */
Equalizer eq=new Equalizer(0, mp.getAudioSessionId());
short bands=eq.getNumberOfBands();

因此​​，在某些设备，我可能能够获得更多的频带，但最小数目是5〜

So, on some devices, I may be able to get more bands, but the minimum number is 5?

此外，是一个好办法，我呈现均衡器的UI部分动态，取决于有多少带了当前设备，然后让用户设置自己的preferences？

Also, is that a good approach that I render the UI part of the equalizer dynamically, depending on how much bands the current device has, and then let the user set his own preferences?

在此先感谢！

推荐答案

我不认为这是乐队的默认号码，你不应该建立你的应用假设有乐队的默认/固定数量。

I do not think there is a default number of bands, and you should not build your application assuming there is a default/fixed number of bands.

当然你必须动态地呈现您的UI均衡的基础上，乐队的设备数量。

Definitely you will have to render your UI equalizer dynamically, based on device number of bands.

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