Apple Cut Frequencies in WWDC Keynote to Prevent Siri Activations

Apple appears to person modified the audio of this week's WWDC 2026 keynote video whenever "Siri" was mentioned, seemingly successful an effort to forestall viewers' adjacent devices from waking inadvertently during the presentation.


The method was spotted by observers connected X, who shared spectrogram screenshots showing wide gaps successful those circumstantial frequence ranges coinciding precisely with instances of the ‌Siri‌ sanction passim the video. Apple appears to person chopped retired the 3kHz, 4kHz, 5kHz, and 6kHz frequence bands.



The attack is designed to decision wake-word detection, which relies connected recognizing the acoustic illustration of phrases similar "‌Siri‌" and Hey ‌Siri‌." By surgically removing the frequencies that transportation cardinal phonetic vigor successful the connection "‌Siri‌," Apple tin trim the likelihood that HomePods, iPhones, iPads, and Macs successful a viewer's location volition trigger portion the keynote plays back.

The method does not look to person been afloat effective, however, arsenic aggregate viewers reported their devices activating anyhow during the stream.

In 2017, Amazon was recovered to usage a akin attack successful its Alexa TV commercials, notching retired frequencies to debar triggering Echo astute speakers successful viewers' homes.
This article, "Apple Cut Frequencies successful WWDC Keynote to Prevent Siri Activations" archetypal appeared connected MacRumors.com

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