The hotly-anticipated Sony WH-1000XM4 noise-canceling headphones have arrived, an upgrade to the WH-1000XM3 with improvements to sound isolation and usability. Although at first glance they may not look much different to the outgoing headphones, the new WH-1000XM4 pairs Sony’s QN1 Noise-Canceling Processor with a new Bluetooth Audio SoC.

That, Sony says, tracks changes in music and ambient noise at more than 700 times per second, and then applies real-time noise cancelation with a new algorithm for the headphones. At the same time, Sony’s Edge-AI DSEE Extreme DSP tries to fill in the gaps in your music left by file compression.
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