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資源簡介

最近由于需要實現音樂頻譜，所以今天就為大家普及一下。關于音樂頻譜你需要了解數字信號處理的知識，尤其是FFT的知識。簡單說就是把時域上連續的信號(波形)強度轉換成離散的頻域信號(頻譜)。我理解波形就是信號的強度，或者說音響設備的輸出的功率，功率高，音量就大。但是歌曲的曲調是不會變的，因為頻譜是不會變的。這個是我寫的一個demo,可以借鑒一下

資源截圖

代碼片段和文件信息 

/**?Automatically?generated?file.?DO?NOT?MODIFY?*/
package?com.terry.AudioFx;

public?final?class?BuildConfig?{
????public?final?static?boolean?DEBUG?=?true;
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2014-10-23?17:45??AndroidMusic\
?????文件?????????380??2014-10-23?16:59??AndroidMusic\.classpath
?????文件?????????847??2011-11-06?20:51??AndroidMusic\.project
?????文件?????????803??2011-11-06?20:33??AndroidMusic\AndroidManifest.xml
?????目錄???????????0??2011-11-06?20:46??AndroidMusic\assets\
?????目錄???????????0??2014-10-23?17:45??AndroidMusic\bin\
?????文件?????????803??2014-10-23?17:30??AndroidMusic\bin\AndroidManifest.xml
?????文件????11140414??2014-10-23?17:31??AndroidMusic\bin\AudioFxDemo.apk
?????目錄???????????0??2014-10-23?17:45??AndroidMusic\bin\classes\
?????目錄???????????0??2014-10-23?17:45??AndroidMusic\bin\classes\com\
?????目錄???????????0??2014-10-23?17:45??AndroidMusic\bin\classes\com\terry\
?????目錄???????????0??2014-10-23?17:45??AndroidMusic\bin\classes\com\terry\AudioFx\
?????文件????????1009??2014-10-23?17:31??AndroidMusic\bin\classes\com\terry\AudioFx\AudioFxActivity$1.class
?????文件????????1361??2014-10-23?17:31??AndroidMusic\bin\classes\com\terry\AudioFx\AudioFxActivity$2.class
?????文件????????1616??2014-10-23?17:31??AndroidMusic\bin\classes\com\terry\AudioFx\AudioFxActivity$3.class
?????文件????????1993??2014-10-23?17:31??AndroidMusic\bin\classes\com\terry\AudioFx\AudioFxActivity$VisualizerView.class
?????文件????????5638??2014-10-23?17:31??AndroidMusic\bin\classes\com\terry\AudioFx\AudioFxActivity.class
?????文件?????????343??2014-10-23?17:30??AndroidMusic\bin\classes\com\terry\AudioFx\BuildConfig.class
?????文件?????????337??2014-10-23?17:30??AndroidMusic\bin\classes\com\terry\AudioFx\R$attr.class
?????文件?????????397??2014-10-23?17:30??AndroidMusic\bin\classes\com\terry\AudioFx\R$drawable.class
?????文件?????????391??2014-10-23?17:30??AndroidMusic\bin\classes\com\terry\AudioFx\R$layout.class
?????文件?????????387??2014-10-23?17:30??AndroidMusic\bin\classes\com\terry\AudioFx\R$raw.class
?????文件?????????424??2014-10-23?17:30??AndroidMusic\bin\classes\com\terry\AudioFx\R$string.class
?????文件?????????526??2014-10-23?17:30??AndroidMusic\bin\classes\com\terry\AudioFx\R.class
?????文件????????9672??2014-10-23?17:31??AndroidMusic\bin\classes.dex
?????目錄???????????0??2014-10-23?17:30??AndroidMusic\bin\dexedLibs\
?????目錄???????????0??2014-10-23?17:45??AndroidMusic\bin\res\
?????目錄???????????0??2014-10-23?17:45??AndroidMusic\bin\res\crunch\
?????目錄???????????0??2014-10-23?17:45??AndroidMusic\bin\res\crunch\drawable-hdpi\
?????文件????????3966??2014-10-23?17:30??AndroidMusic\bin\res\crunch\drawable-hdpi\icon.png
?????目錄???????????0??2014-10-23?17:45??AndroidMusic\bin\res\crunch\drawable-ldpi\
............此處省略32個文件信息

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