Android的信号分析+一些过滤器 [英] Android Signal analysis + some filters
问题描述
由于世界杯是主要的体育赛事和呜呜祖拉是世界上最讨厌的声音，我灵机一动，通过阅读这种新的（<一个明确删除href="http://www.popsci.com/diy/article/2010-06/simple-software-can-filter-out-vuvuzela-whine">http://www.popsci.com/diy/article/2010-06/simple-software-can-filter-out-vuvuzela-whine)这告诉我们，声音有一定的频率在233Hz + 466,932,1864Hz。
as the world cup is the main sport event and the Vuvuzelas are the most annoying sound in the world, I had an idea to remove them definitively by reading this new ( http://www.popsci.com/diy/article/2010-06/simple-software-can-filter-out-vuvuzela-whine) that told us that the sound has some frequencies at 233Hz + 466,932,1864Hz.
我已经做了很多Android应用程序的由我自己，但从来没有接触信号分析和滤波部分，所以这里有几个问题，我不问precise的答案，但也许链接和教程，在里面找到从事于。我想，一个新的Android手机有CPU和力量，使实时过滤。
I have already made a lot of Android application by myself but never touching the signal analysis and filtering part, so here are a few questions, I do not ask for precise answer but maybe links and tutorial to find something to work on. I guess that a new Android phone has the CPU and power to make real-time filtering.
1）我怎么能拦截从杰克麦克风的声音来了 - 线路输入插件（我计划我的电视与杰克链接到我的手机插头）。我的问题是完全的软件和代码，我把所有的电线和适配器插入一个插孔插入我的Android手机行。
1) How can I intercept the sound coming from the Jack microphone - Line-IN plug- ( I plan to link my TV to my phone with Jack to Jack plug). My question is totally software and coding, I have all the wires and adapters to plug a jack into my android phone Line IN.
2）是否有一些傅立叶分析librairies，可我一看Java库在网络上，并将其导入到我的Android项目？
2) Are there some Fourier analysis librairies, may I have a look to Java libraries on the web and import them to my Android project?
我真的很抱歉，因为我的问题似乎并没有precise，但我认为这将是伟大的东西。
I really apologize because my question seem not precise, but I think that would be something great.
感谢您的回答。
推荐答案
大问题！
<一个href="http://developer.android.com/intl/zh-CN/reference/android/media/MediaRecorder.AudioSource.html"相对=nofollow>我看不到输入连接器明确列为音源选择但也许你可能要开始从麦克风源获取数据，让您的code工作，然后找到一个方式来获得从插孔音频。
I don't see the line-in connector listed explicitly as an audio source option but perhaps you might want to start by getting data from the microphone source to get your code working, then find a way to obtain audio from the jack.
有关傅立叶分析/翻译你也可以考虑<一个href="http://stackoverflow.com/questions/962426/processing-audio-data-using-fourier-transforms-in-java">this计算器问题
For the Fourier analysis/translation you may also consider this stackoverflow question
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