苹果拟把iPod和iPhone变成卡拉OK唱机

　　The iPod and iPhone could soon be helping to teach people how to sing along to their favorite tracks under plans drawn up by Apple to turn the devices into mobile karaoke machines。

　　It found worldwide success by inventing a device that transformed the way people listened to music.Now a patent application submitted by Apple has revealed its plans to help teach amateur singers how to hit the right pitch and key by iPpod and iPhone。

　　There is also good news for those forced to listen: the technology will be able to make off-key warbling sound in-tune。

　　The device will allow users to select their favorite songs to sing along to, displaying the words as a video on screen much like traditional karaoke machines。

iPhone卡拉OK构造图

　　As the user sings, however, the iPod will analyze their voice, comparing it with how the song is supposed to sound and providing them with feedback if they are off key to help them correct their performance。

　　If the singer hits the pitch and key perfectly, then they will be rewarded by having their performance enhanced to give a concert hall effect that is pleasing to listen to。

　　But when they are off key or sing at the wrong pitch, the device will exaggerate their mistake so that they can hear it in a pair of earphones they are wearing。

　　The system would also be able to change the output from the speakers, if the singer was performing in front of an audience, so they did not have to endure bad singing. Instead it would "fuzz" the singer’s voice to disguise the fact they are off key。

　　The patent also proposes allowing users to record their performances and edit them later, while a digital sound wave read out would also allow them to see how they had performed compared to the original。

　　Apple refused to comment on how it intends to develop the patent and when its karaoke system will be available on the market, but the company's online music store sells music under a category of karaoke。

　　Tracks include popular karaoke favorites by artists such as MC Hammer, Blondie, The Beach Boys and Tina Turner。