我们怎样才能在iPhone sdk中控制音乐的低音？ [英] How can we control bass of music in iPhone sdk?

问题描述

我想控制用户从iPod音乐库播放的歌曲的低音。

I want to control the bass of song played by user from iPod music library.

我在Google上搜索并获得了一些没有帮助的AudioMixer示例，但现在我有来自 http://www.un4seen.com/ 的低音库，即libbass.a我认为非常有用。

I've searched on Google and got some AudioMixer samples which were of no help, but now I have got bass library i.e. libbass.a from http://www.un4seen.com/ which I think is quite useful.

但我不知道如何使用滑块来调整歌曲的低音。

But I don't know how I should adjust the bass of the song using slider.

最近我还有一个关于此的样本。但是这里的问题是我在AudioUnit Framework给出的数组中得到所有均衡器的类型，如Dance，Pop，Rock，Bass，Jazz，Acoustic，Classical等预设/预定义。但我想在滑块中只实现低音。你必须知道要在滑块中实现任何东西，我们需要值。但在我的情况下，我没有得到任何均衡器预设类型的任何值。

Recently I got one more sample regarding this. But here the issue in this sample is I'm getting all equalizer's types like Dance, Pop, Rock, Bass, Jazz, Acoustic, Classical etc preset/predefined in an array given by AudioUnit Framework. But I want implement only bass in an slider. And you would must know that to implement any thing in slider we need values. But here in my case i'm not getting any value for anyone of those equalizer's preset types.

推荐答案

如果你真的想在iPod播放的曲目上显示低音，设置您的值以提升大约60-80 Hz的频率，同时切断一些大约100-400 Hz的中频。不要忘记略微增加高点，比如大约2800 + Hz。我不熟悉软件的设置方式，但从工作室艺术家的经验来看，上面提到的频率调整会消除任何泥泞或低沉的声音，真正打开低端。处理您的要求：将滑块设置在60-100 Hz之间。

If you want to really bring out the bass on tracks played in the iPod, set your values to boost frequencies around 60-80 Hz, while cutting out some mids around 100-400 Hz. Dont forget to slightly increase highs as well, say around 2800 + Hz. I'm not familiar with how the software is set up, but from a studio artist's experience, the above mentioned frequency adjustments will take out any muddy or muffled sounds and really open up the low end. To handle what your asking: set your slider between 60-100 Hz.

祝您好运！

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