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    12/31/2005

    噪声处理

    降噪是至关重要的一步,做的好有利于下面进一步美化你的声音,做不好就会导致声音失真,彻底破坏原声。单单这一步就足以独辟篇幅来专门讲解,大家清楚这一点就行了。
    1.点击左下方的波形水平放大按钮(带+号的两个分别为水平放大和垂直放大)放大波形,以找出一段适合用来作噪声采样波形(图8)。

    (图8)


    2.点鼠标左键拖动,直至高亮区完全覆盖你所选的那一段波形(图9)。

    (图9)

    3.右单击高亮区选“复制为新的”,将此段波形抽离出来(图10)。

    (图10)

    4.打开“效果--噪声消除--降噪器”准备进行噪声采样(图10)。
    5.进行噪声采样。
    降噪器中的参数按默认数值即可,随便更动,有可能会导致降噪后的人声产生较大失真(图11)

    (图11)

    6.保存采样结果(图12)

    (图12)

    7.关闭降噪器及这段波形(不需保存)。

    8.回到处于波形編辑界面的人声文件,打开降噪器,加载之前保存的噪声采样进行降噪处理,点确定降噪前,可先点预览试听一下降噪后的效果(如失真太大,说明降噪采样不合适,需重新采样或调整参数,有一点要说明,无论何种方式的降噪都会对原声有一定的损害) (图13 图14 图15)

    图13

    图14

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