旅行者的非旅行日誌

                                                                               
http://www.ultrasonic-ringtones.com/
                                                                               
聽力測試網站
                                                                               
                                                                               
請看網站裡的說明～
17kHz 以上的聲音  是20歲以下才能聽到的
因為人的耳朵會老化
                                                                               
                                                                               
我還真....只能聽到 8~16.7KHz的聲音
C# 只有聽到好像很微弱的東西  連音階都無法分辨
                                                                               
                                                                               
嗚嗚～～我不想我的耳朵老化啊啊啊～～～
還我青春
/__\