AirPods Pro 2 testing reveals significant improvement in Bluetooth latency

AirPods Professional 2 pack quite a lot of enhancements over their predecessors, a lot of that are made attainable by the brand new H2 chip inside. New testing performed by Stephen Coyle, a musician and software program developer, reveals one other hidden good thing about the brand new AirPods Professional 2 and the H2 chip: vital enhancements in latency.

One of many downsides of Bluetooth (and wi-fi applied sciences typically) has all the time been latency. That is the time between when a sound happens in your system and when that sound is then performed by your AirPods. This isn’t an issue for issues like video playback, the place the video might be delayed barely so as to make sure the audio is appropriately lined up.

The place latency turns into an issue, nevertheless, is with what Coyle has beforehand known as “unpredictable” sounds, like notifications, sound results, keyboard clicks, audio modifying, and extra.

The unique AirPods Professional offered a significant improvement in latency efficiency in comparison with the unique AirPods. The newest-generation AirPods Professional 2 take issues even additional. The testing methodology that Coyle makes use of consists of the next:

I’ve stored principally the identical testing methodology as earlier than; I join AirPods to an iPad Professional, and faucet the display screen with an Apple Pencil. I take advantage of an audio recorder to seize the sound of the bodily faucets, and the ensuing audio, then measure the time between these sounds. One distinction from earlier checks is that I’ve determined to measure solely keyboard click on latency. 


Within the chart above, you may observe the progress Apple has made in enhancing AirPods latency during the last a number of years. In keeping with Coyle, the AirPods Professional 2 “carry out about 40ms higher than their predecessors, with a median latency of 126ms vs the unique’s 167ms.”

He continues:

Maybe a extra fascinating level to notice is that the second-generation AirPods Professional carry out solely 43ms worse than the built-in audio system (at 83ms). That means that as much as two-thirds of the time between touching the display screen and listening to a noise happens earlier than Bluetooth knowledge leaves the system.

In the end, Coyle concludes that he nonetheless believes there’s “an excessive amount of latency for audio suggestions to really feel snappy and responsive” with AirPods Professional 2. However with that mentioned, it’s attainable there are additional enhancements that may very well be made on the device-side slightly than to AirPods themselves.

You possibly can see the total particulars of Coyle’s testing on his website.

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