As we all know, the audio decoding of Bluetooth headset is mainly divided into sbc, aac, aptx, ldac and so on. So what does this mean? Let me give you a brief introduction.
SBC:
It is the most basic decoding method commonly used. Bluetooth headsets are supported, supporting 44khz/ 16bit audio. The highest bit rate is 328kbps, the delay is about 220ms, and the sound quality is average.
AAC:
It is a common decoding method for Apple products, similar to sbc, supporting 44khz/ 16bit audio, with the highest bit rate of 5 12kbps, the delay of about 100ms, and the sound quality is slightly better than sbc.
APTX:
This is a patent of Qualcomm. It supports 48khz/ 16bit audio, with a maximum bit rate of 352kbps and a delay of about 40 ms. The sound quality is better than that of sbc, but it is not improved much compared with sbc. In addition to ordinary aptx, there are aptx low latency and aptx hd, one is low latency and the other is high sound quality.
lDAC:
Produced by Sony, it is truly high-quality decoding, supporting 96khz/24bit audio, and the highest bit rate is 990kbps, which is close to lossless decoding.
lhac(hwa):
It is also close to lossless decoding, mainly driven by China, supporting 96khz/24bit audio, and the highest bit rate is 900kbps, comparable to ldac.