Le’t continue the topic ,Last article We talk about the bluetooth ,Now let’s talk about the other 

Sound quality is also very important

Many people think that the headset is Bluetooth, and they also pay attention to the sound quality.

In fact, the difference in sound quality between different Bluetooth headsets may be quite large.

In the case of the same sound source quality, the sound quality mainly depends on the encoding format during transmission and the sound unit of the headset.

With regard to the current encoding methods for audio by headphones, the sound quality output levels from low to high are mainly SBC, AAC, aptX, HWA and LDAC.

Among them, SBC and AAC are both basic coding formats earlier and belong to lossy coding.

After transferring from the mobile phone to the headset, the sound quality will be lost and some details will be lost.

And Qualcomm’s aptX, by compressing audio files, achieves a higher-quality sound quality output without affecting the sound quality, with more details reserved than the first two encodings.

aptX can also be subdivided into traditional (aptX), high quality (aptX-HD) and low latency (aptX Low Latency), each with its own characteristics.

But for the iPhone, only SBC and AAC codec technologies are supported.

Almost all Bluetooth headsets support these two encodings, so you don’t need to pay attention to which encoding is used when choosing. . .

On the more open Android, as long as the system is a mobile phone with Android 8.0 or higher, in addition to SBC and AAC, it will also support aptX and LDAC.

If your mobile phone supports LDAC, choose a Bluetooth headset that supports LDAC as much as possible, so that you can enjoy higher quality sound quality.

In addition to the encoding format, the earphone sound unit is also an important factor affecting the sound quality.

Common sounding units are moving coil, moving iron, and ring iron. The tuning styles have their own characteristics, and they will bring different feelings.

However, if you are not particularly feverish about sound quality, encoding and sounding units are not so important. After all, the sound quality of Bluetooth is not as good as wired. Moreover, for a few hundred dollars of Bluetooth headsets, the difference in tuning may be the most important factor in determining the sense of hearing.

In most cases, we choose Bluetooth headsets for convenience. Sound quality is important, but when buying, don’t blindly ignore the comfort of wearing for the sake of sound quality. (About these two points, it is recommended that you find opportunities to listen offline as much as possible)