Two years ago, Bluetooth 5.0 technology was also exclusive to some high-end mobile phones. Under the vigorous promotion of Qualcomm, it will start to be commercialized on a large scale after 2019, and Bluetooth 5.0 can be seen in many mid-range and even low-end Android phones.
Specification parameters of a certain brand of mobile phone
In other words, as long as your mobile phone is Android 8.0 or above, it basically supports Bluetooth 5.0 (from the low version update to Android 8.0 does not count)
may be affected by the daily experience, and people may have been immune to some technological upgrades. Therefore, people's concept of Bluetooth is basically stuck in the early versions of Bluetooth 4.0, and they think that Bluetooth 5.0 may be a performance optimization.
is not the case, Bluetooth 5.0 is compared to Bluetooth 4.2.
- transmission distance is increased by four times (theoretically up to 300 meters).
- transmission speed is increased from 1Mbps per second to 2Mbps per second to 2Mbps per second to achieve "one-to-many" or "many-to-many" connection (one mobile phone can connect multiple Bluetooth devices at the same time)
In addition, Bluetooth 5.0 is more powerful, which is to add Qualcomm's audio encoding transmission protocol - Qualcomm aptX encoding. The substantial changes it brings are enough to subvert people's previous concepts of wireless audio.
early Bluetooth versions are the two encoding protocols SBC and AAC. Because both are lossy compression, people will not pursue too much sound quality when listening to music with wireless.
- SBC, the most basic Bluetooth audio encoding, performs a lot of lossy compression processing during the data transmission process, and will not have any sound quality experience at all. The delay is so high that you can't play games wirelessly.
- AAC, the upgraded version of Bluetooth audio encoding, is also lossy compression, and the sound quality is improved compared to SBC, but the wireless audio experience is still not friendly enough.
Until CRS developed aptX audio encoding, it was acquired by Qualcomm, and aptX was commercialized on a large scale. Many digital enthusiasts began to change their views on Bluetooth sound quality.
With the support of aptX, it turns out that Bluetooth can also transmit great sound quality, and the delay is so low that it can be ignored.
aptX is a general term, which includes three encoding protocols: apt-X (normal), aptX-LL (low latency) and aptX-HD (high quality).
- apt-X (normal) : High-performance, lossless compression algorithm, supports 48kHz/16 bit sampling frequency , so that people can enjoy a more advanced sound quality experience.
- aptX-HD (High Quality) : Supports 48KHz/24bit sampling frequency, making the Bluetooth stereo listening experience a revolutionary leap, and is closer to the pure wireless sound effect of lossless CD-level sound quality. It allows you to hear the tiniest details of the music, realistic sound quality that is indistinguishable from the live sound.
- aptX- LL (low latency) : Its latency is less than 40 milliseconds, while the delay that people can feel is greater than 70 milliseconds, which can be used to play FPS-type gunfighting games, monitors and watch movies. How to find these protocols
?
Connect to Bluetooth device - Open the phone settings - Double-click the version number - Open the developer mode - Find the Bluetooth audio encoder
It should be noted that because aptX-HD is a private protocol, if you want to enjoy the CD-level sound quality of aptX-HD, both devices must support aptX-HD. In other words, in addition to mobile phones, Bluetooth speakers or Bluetooth headsets and also need to be installed with Qualcomm CSR8675 chip to exert the powerful functions of aptX-HD.
In addition, if you have abandoned old audio amplifiers at home, buy an Bluetooth receiver equipped with Qualcomm CSR8675 chip aptX-HD, and use your mobile phone to make the old audio playback almost lossless CD-level music. The old machine is directly reborn into a wireless technology product.
px Chase aptX-HD Bluetooth receiver
If you want to experience wireless sound without delay, then buy a Bluetooth transmitter that supports aptx-LL, and then pair it with a pair of Bluetooth headphones that support aptx LL. In this way, you can get rid of the constraints of wired playing games and watching movies.
px Chase aptx-LL Bluetooth transmitter
PX Chase aptx-LL low-latency headset
Technology is quietly changing life, but you haven't discovered it.
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