Bluetooth headphones have a delay, but how much delay is the problem, this is related to the headset configuration, want to buy a low delay can support aptx coding Bluetooth headphones on the line, like Sennheiser, vivo TWS this thousand level of headphones will basically support this coding, but in the hundred level of Bluetooth headphones there is also support, I now use shell Prince Bluetooth headset, less than two hundred to buy, is also Qualcomm chip, can also support aptx.
aptx is currently the lowest delay encoding, its delay is about 80ms, this delay is basically not felt, only when the delay is greater than 100ms, can feel out, but only Qualcomm chip can support aptx, other chips can only support aac\/sbc these two encoding, but their delay is several times higher than aptx.
The delay is the highest sbc coding, the delay is about 300ms, when watching the play, the characters have said the third word, and the sound you hear is still stuck in the first word.
And can support the aptx headset, the connection is also much more stable, and the connection distance is longer.
And aptx itself is a lossless sound transmission encoding, so it is also very good in terms of sound quality. If you want a Bluetooth headset with low latency, buy a headset that supports aptx coding, buy a Sennheiser for a high budget, and buy a shell Prince for a low budget.
The first thing to understand is that both wired and Bluetooth headphones have sound delays. The delay is caused by the time it takes for audio to transfer from a phone or computer to a headset. For wired headphones, the device generates digital audio, converts it to the DAC into analog audio, and can be directly transmitted to the headset through the wire, the whole process is very simple, generally less than 10ms to complete, and the human ear is difficult to detect the sound delay.
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However, the conversion process of Bluetooth headphones is relatively long, due to the limited bandwidth of Bluetooth transmission, the digital audio needs to be compressed into Bluetooth protocol audio coding, transmitted to the Bluetooth headset, and then decompressed into digital audio on the headset, and then converted to analog audio for DAC, after this long process, the sound is transmitted to your ear. Because the processing time of Bluetooth headsets is much longer than that of wired headsets, this also explains the much higher reason for the sound delay