What are the specifications of the Bluetooth speaker
Release time:
2023-11-22 08:18
There are many Bluetooth headset products on the market, while Bluetooth speakers are relatively few. The so-called Bluetooth speaker, in fact, refers to rely on the Bluetooth transmission protocol as a carrier for data transmission speakers, because most of the mobile devices (mobile phones, laptops, tablets) are equipped with Bluetooth chip, do not need data line or audio line connection can be quickly identified, simple operation, convenient connection.
Judging from the sound quality performance, the effective audio data amount of CD sound quality data (44.1KHz sampling rate and 16bit sampling accuracy) is about 1.4Mbit. To transmit CD sound quality music signals, the transmission rate only needs to be kept at 2Mbit per second, and the Bluetooth "2.1 EDR" specification is sufficient. Moreover, because these products often follow the mature acoustic structure of traditional speakers and realize wireless playback after integrating Bluetooth module, their sound quality performance is equivalent to that of speaker products of the same level.
From the specification point of view, although the Bluetooth 3.0/4.0 standard has been proposed, but the former is mainly reflected in the Bluetooth radio frequency modulation in line with the Wi-Fi, the latter is reflected in the application of automatic power control, that is, low power consumption, from these two versions reflect the progress of Bluetooth technology, but little contact with audio applications. From the chip level application point of view, suitable for 3.0/4.0 version.
Bluetooth mainstream speakers use A2DP stereo protocol, and in 2012 smart phones, tablets and other devices support A2DP protocol, so from the perspective of use, Bluetooth speakers have no obstacles at all.
Related News
sweep