首先取一個wav文件，其次找一個wav文件格式簡單符合pcm編碼的，也就是文件的第14字節位置要爲1
確認此wav文件此處爲01 00 然後進行解析
然後我們還要知道他的位寬（8位還是16位）、幾聲道（單聲道還是雙聲道）
14h位置爲1代表爲pcm編碼格式的wav文件
16h位置爲2雙聲道
22h位置爲pcm位寬 16
8bit也就是8位也就是等於一字節
8bit單聲道用一字節表示一次採樣數據
雙聲道用兩字節，前一字節爲第一個聲道後一字節爲第二聲道的採樣數據
我們16位雙聲道用四字節表示一次採樣數據
前兩字節表示第一次採樣的一聲道數據，後兩字節表示第一次採樣的二聲道數據
那麼我們開始解析，一般這種文件文件頭爲44字節，所以去掉頭部44字節後面就是實際的數據。
最終我們要解析成波形圖。
雙聲道就是兩條折線圖的意思
先解析第一個點02 00 02 00 也就是
第一條折線圖的第一個點的y座標是2，第二條折線圖的第一個點的y座標也是2
第一條折線圖的第二個點的y座標是1，第二條折線圖的第二個點的y座標也是1
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以此類推最後畫出波形圖
好了我們這個音樂是嘟的響一聲
如果我們要把改成兩聲就把數據區域複製粘貼插在文件尾，然後修改28h-2bh位置的數據乘2即可。
附：語音數據16進制
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