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我最近刚买了一个MP3随身听,商家说它是USB 2.0传输接口的,传输速度很快,但我发现它的传输速度很慢。A影响MP3随身听传输速度的主要因素有:传输介质规格、随身听采用的MP3芯片,以及电路设计的好坏。目前市场上MP3随身听产品的主流传输规格以USB 2 0为主,以今年所推出的MP3随身听产品来说,有九成以上为USB 2.0的规格。不过如果MP3随身听是去年之前购买的,则很有可能为USB 1.1的旧规格。USB 2.0与1.1规格最大的差别就在于传输速度。从规格的标准来说,USB 2.0的传输速度可以达到480Mb/s,而USB
I recently bought a MP3 Walkman, the merchant said it is a USB 2.0 interface, the transmission speed, but I found it slow transmission speed. A main factors affecting the speed of MP3 players listen to: transmission media specifications, MP3 players used in MP3 chips, and the circuit design is good or bad. Currently on the market MP3 Walkman mainstream transmission specifications USB2.0 based, MP3 Walkman this year launched the product, more than 90% of the specifications for the USB 2.0. However, if the MP3 Walkman was purchased before last year, then it is likely to be the old specification of USB 1.1. The biggest difference between the USB 2.0 and 1.1 specifications is the transfer speed. From the standard specification, USB 2.0 transfer speeds up to 480Mb / s, and USB