What Is a Dual Bluetooth®, Headset?
A dual Bluetooth headset is a hearing device that refers to a dual-channel, stereo Bluetooth headset. The wireless communication sent by the device through wireless technology can be used to enjoy songs, make calls, etc.
Dual Bluetooth headset
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- Chinese name
- Dual Bluetooth headset
- Foreign name
- Double Bluetooth headset
- Use
- Listen to music, answer calls
- A dual Bluetooth headset is a hearing device that refers to a dual-channel, stereo Bluetooth headset. The wireless communication sent by the device through wireless technology can be used to enjoy songs, make calls, etc.
- What is a dual Bluetooth stereo headset
- Ordinary Bluetooth is just an ear. Just be obedient.
- Stereo Bluetooth is generally two-eared, and listening to music is also stereo. good results.
- We often hear the word stereo in our daily life, so what is stereo? The so-called stereo is to make people feel that the sound of the sound source distributed in the space is deep and layered, and it is like being immersive when listening to the playback of the speaker.
- 1. Two-channel:
- Decades ago, the sound was reproduced from a speaker, which is mono playback. Obviously, this is very different from the sound played live in the concert hall. Listening to music in the concert hall, you can distinguish the direction of the sound of the instrument and the reverberation effect of the concert hall. Mono is equivalent to a point sound source. Of course, these effects cannot be reproduced, so its "liveness" is greatly limited.
- Two channels are recorded by two sets of left and right pickups, two channels are stored and transmitted, and two sets of speakers are played, so it is also called a 2-2-2 system. The instrument can be positioned, the band's sense of width can also be reproduced, and it has a certain stereo reverberation and reflected sound from different directions. Compared to mono, the presence and realism of the two channels are greatly improved.
- 2. 5.1-channel stereo:
- In 1991, Dolby Laboratories and Japan Pioneer Corporation successfully researched the digital surround sound AC-3 system, a new surround sound system using digital compression coding technology. Its appearance marks the entry of the multi-channel surround sound system into the digital age. AC-3 has the following four characteristics:
- (1) This system has its own independent front three channels (left main channel, center channel, right main channel), rear two channels (left surround channel, right surround channel) and 0.1 Subwoofer. The standard is 5.1 channel. (2) The five channels in this system have no band limitation and are a full-channel stereo structure. Therefore, in addition to the more natural sound field, the sense of movement and positioning becomes more obvious. (3) The subwoofer channel can reproduce low-frequency signals below 200Hz and can be controlled independently. (4) This system uses all digital signals, so the frequency bandwidth, large dynamic range, and excellent phase characteristics