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With the development of technology, more and more users are using Bluetooth speakers to listen to music. Using Bluetooth speakers saves a lot of wiring costs and is not limited by placement orientation. How should we deal with the delay issue of Bluetooth audio?

Version of Bluetooth audio system

Bluetooth protocols include 1.0, 2.0, 2.1, 3.0, 4.0, and 4.1, among others. During this period, the transmission speed of Bluetooth 2.0 is about 1.8Mbps to 2.1Mbps, while the data transmission rate after Bluetooth 3.0 has been increased to 24Mbps, and the bandwidth has been expanded by about 8 times. Therefore, regarding some low-end Bluetooth speakers, or old computers and phones, assuming that the Bluetooth protocol version is too low and the bandwidth is too small, it will affect the transmission of audio streams, leading to delayed sound.

To achieve better transmission speed, it is recommended to increase the protocol version of Bluetooth.

1、 Transmission distance

Bluetooth is defined as point-to-point communication within a short distance range, with a transmission distance of about 10 meters in the presence of certain obstacles. Regarding mobile phones and other devices, in order to save power, the transmission power of Bluetooth will be limited. So, assuming there are obstacles such as walls in the middle for isolation, it will have a certain impact on the data transmission quality of Bluetooth.

In order to reduce the delay of Bluetooth transmission, it is advisable to be as close as possible to the audio system and minimize the isolation of obstacles.

2、 The disturbance of wireless devices

Bluetooth homework in the frequency band is 2.4GHz, which belongs to the free industrial and educational frequency bands. For example, wireless mice, keyboards, microwaves, routers, and other devices all operate in this frequency band. The interference of various wireless devices can cause delays in Bluetooth data transmission. In addition, most mobile phones are planned to share a 2.4GHz antenna for Bluetooth and Wi Fi. Assuming that Wi Fi is used for downloading during Bluetooth playback, it will seriously affect the transmission rate of Bluetooth.

Therefore, assuming that Bluetooth and Wi Fi are required to work together, set the router to use the 5GHz frequency band.

3、 Disadvantages of Bluetooth sound system/mobile phone

Assuming there are too many working programs in the background of the mobile phone, resources are occupied by other programs, which can also cause delays in Bluetooth audio playback. Suggest organizing programs for mobile backend work and releasing mobile resources.

Assuming that there are shortcomings in the Bluetooth audio system, it may also cause delays in the Bluetooth audio system. To address this issue, the Bluetooth audio system can be reset.

Article source: LED Bluetooth audio system www.zbship.com