{
  "patent_number": "US 12739581",
  "country": "US",
  "title": "How Speakers Adjust Sound for Moving Listeners",
  "original_title": "Calibration based on audio content",
  "summary": "This patent describes how a speaker system can automatically change its sound settings when it detects that people listening to it have moved to a different spot.",
  "what_it_does": "The patent describes a system where a playback device, like a smart speaker, first plays audio using a specific sound setup, called a 'first calibration'. It then actively detects if the arrangement of one or more listeners relative to the speaker has changed. For example, if a listener moves from sitting directly in front of the speaker to a different position in the room. Based on this detected change in listener arrangement, the playback device automatically applies a 'second calibration' to its sound output. This ensures the audio quality remains optimized for the new listening positions.",
  "what_it_does_not_cover": [
    "Does not cover sound adjustments based on the type of audio content playing, such as switching settings for music versus podcasts.",
    "Does not cover manual sound adjustments made by a user through an app or physical controls.",
    "Does not cover calibration based solely on changes in room acoustics without considering listener position.",
    "Does not cover systems that only use a single, static sound calibration regardless of listener movement.",
    "Does not cover calibration triggered by environmental factors like temperature or humidity."
  ],
  "filed": "2023-11-06",
  "granted": "2026-09-15",
  "expires": null,
  "status": "active",
  "holder": null,
  "holder_url": null,
  "inventors": [],
  "times_cited": 0,
  "tags": [
    "consumer_electronics",
    "software",
    "telecommunications"
  ],
  "abstract": "Example techniques may involve multiple calibrations for a playback device. In an example implementation, a playback device plays back audio content according to a first calibration via the one or more audio amplifiers. The playback device detects that an arrangement of one or more listeners relative to the first playback device has changed from a first arrangement to a second arrangement. Based on detection that the arrangement of one or more listeners relative to the first playback device has changed from the first arrangement to the second arrangement, the playback device applies a second calibration to playback by the first playback device.",
  "url": "https://patentbrief.org/patent/us/12739581/calibration-based-on-audio-content",
  "markdown_url": "https://patentbrief.org/patent/us/12739581/calibration-based-on-audio-content/md",
  "google_patents_url": "https://patents.google.com/patent/US12739581",
  "relatedPatents": [
    {
      "patentNumber": "12737152",
      "countryCode": "US",
      "title": "How Speakers Auto-Adjust Sound for Any Room",
      "url": "https://patentbrief.org/patent/us/12737152/playback-device-calibration-based-on-representative-spectral-characteristics"
    },
    {
      "patentNumber": "11178503",
      "countryCode": "US",
      "title": "How Smart Speakers Adapt Sound to Your Room and Listening Spot",
      "url": "https://patentbrief.org/patent/us/11178503/system-for-rendering-and-playback-of-object-based-audio-in-various-listening-env"
    },
    {
      "patentNumber": "11743673",
      "countryCode": "US",
      "title": "Smart Speaker System Adapts Sound Based on Speaker Placement",
      "url": "https://patentbrief.org/patent/us/11743673/audio-processing-apparatus-and-method-therefor"
    },
    {
      "patentNumber": "12335718",
      "countryCode": "US",
      "title": "How to Mix Sound for Different Speaker Setups",
      "url": "https://patentbrief.org/patent/us/12335718/system-and-method-for-adaptive-audio-signal-generation-coding-and-rendering"
    },
    {
      "patentNumber": "10276149",
      "countryCode": "US",
      "title": "How Voice Assistants Change Their Speech Based on How You Talk",
      "url": "https://patentbrief.org/patent/us/10276149/dynamic-text-to-speech-output"
    }
  ]
}