信号处理(莫尔斯code解码)与Android应用 [英] Signal-processing (morse code decoding) with Android application
问题描述
我取得了德尔福时响起使用Windows API Beep函数莫尔斯code测试应用程序。然后做Android中存储的WAV文件莫尔斯这个code的应用程序。现在我想的Android应用程序,以德code莫尔斯code。是否有一些教程进行无害化处理或者有人可以张贴一些简单的code(想想有没有简单在这里)的例子?或者,也许步骤,我需要做的就是它的工作?
I made test application in Delphi that beeps morse code using Windows API Beep function. Then made an application in Android that stores this morse code in WAV file. Now I want Android application to decode the morse code. Is there some tutorials for sound processing or can somebody post some simple code (think there's no simplicity here) for an example? Or maybe steps that I need to do to get it work?
我也下载了JTransforms和jfttw库,但真的不知道从哪里开始。
I also downloaded the JTransforms and jfttw libraries but don't really know where to start.
问候,
evilone
Regards, evilone
推荐答案
这是FFT是矫枉过正这一点 - 你可以只使用一个简单的戈泽尔过滤来隔离背景噪音莫尔斯code,然后去code,它的输出。
An FFT is overkill for this - you can just use a simple Goertzel filter to isolate the morse code from background noise, then decode the output of this.
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