Friday, April 8, 2011

【 Weak current College 】 stereo Bluetooth headset works



Application of previous Bluetooth headset, mostly for voice transmission, Bluetooth stereo headphones, not only breaking past just speaking phone, more can be used to listen to the mobile phone and computer music. What is Bluetooth stereo headphones what secrets?, let me tell you!
Do you find the street more and more people are often approached in soliloquy? wait until see you will find that they are in use 「introduction Bluetooth headset 」 talking on the phone. With the TV in the mobile advertising of voicing Jolin Tsai to keep playing, you'll find many people start with binaural wireless headphones roams the streets, in fact, they wore, Bluetooth headset, but the original single creative switching with Bluetooth headset is slightly different, is the support of the left ear 2-channel 「introduction Bluetooth stereo headphones 」. This new product emphasizes the binaural stereo sound effects, not only can experience and anyone is like the face on feeling, more directly, through headphones as CD-like music!
Bluetooth (Bluetooth) a 10th century a.d. onwards, etymology unified Denmark and Norway Nordic Viking king, easy HaraldBluetooth Ericsson (Ericsson) have developed a short distance wireless transmission interface, and in 1998, combined with IBM, Intel, Nokia, Toshiba five firms established BluetoothSIG Bluetooth Union (BluetoothSpecialInterestGroup). The Bluetooth technology mainly three characteristics are: non-directional, voice and data transmission, and you can link multiple devices simultaneously.
Currently available Bluetooth headset, most more to focus until Bluetooth1.1 version recently launched various manufacturers of new Bluetooth headset will only gradually adopt 1.2 version. 1.1 version is Bluetooth Union published in 2001, the main emphasis of their security (encryption) and Bluetooth mode of operation of micro-networks (Bluetooth device connections), but with the rise of the WiFi wireless network, using the same frequency with the Bluetooth section, making Bluetooth 1.1 version often interfere with the WiFi produce. For this reason, the Bluetooth Alliance announced in 2004, the new version 1.2 AFH Adaptive frequency hopping technology that not only effectively improve and WiFi interfere with each other, at the same time enhances the stability of the data transfer time!
Currently Bluetooth Union latest specification is in November 2004 the 2.0 + EDR (EnhancedDataRate) version, not backwards compatible to 1.1 and 1.2 specifications, the transmission speed per second 3Mbps, Apple computer's new PowerBook and Toshiba NoteBook also began using Bluetooth 2.0 specifications, mydigit.cn believe soon will also be universal to all products!
Understanding Bluetooth technology specifications, if you want to use Bluetooth device to listen to high-quality stereo music, then you must understand the A2DP (AdvanceAudioDistributionProfile) this term. A2DP allows two similarly support the Bluetooth audio transport devices are concatenated, whether 1.1 or 1.2, can output such as CD-quality (16bits, 44.1kHz) like music. If either party does not support the A2DP, then sound can only output Hand ※ ※ reeProfile (8bits, 8kHz), even if the headset is the dual headset design, this is a general telephone mono sound, and true stereo but far cry!
1. Bluetooth stereo headphones + mobile phone
Bluetooth stereo headphones + mobile phone, in addition to normal voice calls, most major characteristic is available directly through the Bluetooth stereo headset to listen to the mobile phones play music. While the available built-in A2DP mode mobile phone, is also becoming more and more popular, with Bluetooth stereo headphones, you can link directly to the mobile phone, listen to music!
In addition to the built-in A2DP mobile phone, mobile phone operating system using SymbainSeries60, such as Nokia6670, 6680 and PanasonicX700, X800 ... And so, the famous Bluetooth peripheral manufacturers also offer iTech BluePlayer plugin, makes Series60 Mobile phone supports the A2DP mode, enjoy listening to the music of 「introduction wireless 」 pleasure!
2. Bluetooth stereo headphones + PC
As the popularity of the Bluetooth device, more and more individuals and notebook computers, also began to built-in Bluetooth device. While computers on the Bluetooth application, can be said to be the largest type, either a printer, mouse, keyboard connection, even PDA and cell phone synchronization can be carried out through the Bluetooth device. At present on the PC application of the most Hot case Skype with a Bluetooth headset to speak, as long as the computer to install the Bluetooth receiver on, and install the driver, you can use Bluetooth pairing to address wired device line propagation of trouble!
Bluetooth stereo headphones when available, in addition to being able to make Skype calls, you can use headphones to listen to music from your computer, regardless of whether your computer's Bluetooth receiver specification is 1.1 version or release 1.2, an update to support A2DP mode driver (WIDCOMM 4.0 version above will support, IVT you need 1.4 version above), you can support the blue headphones supplied stereo sound output, so that users can experience 「introduction acoustic 」 would feel, don't worry Horn too loudly interfere with opening to the other person!
3. Bluetooth stereo headphones + music player
If your phone does not support Bluetooth A2DP, but you also want to use Bluetooth headset to listen to music, but also manufacturers introduced for 3.5mm headphones plug HiFi Bluetooth transmission device. Whenever 3.5mm headphone connectors music broadcastOn the device such as iPod, MP3Player, home audio or the radio, can be directly converted to Bluetooth wireless transmission devices to use do not have to go through complicated setup, just open the transmitter and Bluetooth stereo headphones, power supplies, it will match you to directly experience the magic of wireless applications.
Bluetooth stereo headphones, you can say is once again leading the Bluetooth topic fever a product, because he started to make Bluetooth from traditional voice transmission capabilities to enhance the ability to have music playing. In the trial process, the deepest impression is the recently completed phones and computers Bluetooth pairing setting, to put on headphones I hit, the music out.

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