Apple Cut Frequencies in WWDC Keynote to Prevent Siri Activations

Apple appears to have modified the audio of this week's WWDC 2026 keynote video whenever " Siri " was mentioned, apparently in an effort to prevent viewers' nearby devices from waking inadvertently during the presentation. The technique was spotted by observers on X, who shared spectrogram screenshots showing clear gaps in those specific frequency ranges coinciding precisely with instances of the ‌Siri‌ name throughout the video. Apple appears to have cut out the 3kHz, 4kHz, 5kHz, and 6kHz frequ