{
  "patent_number": "US 12737152",
  "country": "US",
  "title": "How Speakers Auto-Adjust Sound for Any Room",
  "original_title": "Playback device calibration based on representative spectral characteristics",
  "summary": "This patent describes a system where a computing device measures a room's sound characteristics, finds a matching sound profile in a database, and then tells a speaker how to adjust its sound for that specific room and speaker type.",
  "what_it_does": "The patent outlines a method for automatically calibrating a playback device, like a speaker, to its environment. First, a computing device keeps a database of 'representative spectral characteristics,' which are like sound fingerprints for different room types or acoustic conditions. The system then receives 'particular spectral data' from the specific room where the speaker is located. This data describes how sound behaves in that particular space. Based on this measured data, the computing device identifies a matching spectral characteristic from its database. It then uses this identified characteristic, along with details about the specific speaker, to find a suitable 'audio processing algorithm' in the database. Finally, the computing device sends this algorithm to the speaker, telling it how to adjust its sound output. For example, a smart speaker might measure the echoes in a large, empty living room, find a database entry for 'large, echoey room,' and then apply an algorithm to reduce bass boom and clarify vocals.",
  "what_it_does_not_cover": [
    "Does not cover manual equalization (EQ) adjustments made by a user without a database lookup.",
    "Does not cover systems that generate an audio processing algorithm from scratch without identifying a representative spectral characteristic from a database.",
    "Does not cover calibration based solely on non-spectral data, such as microphone placement or listener position, without analyzing the sound's frequency components.",
    "Does not cover systems that only measure the room without also considering specific characteristics of the playback device itself when selecting an algorithm.",
    "Does not cover real-time, continuous adjustment of sound based on dynamic environmental changes, but rather a one-time calibration based on a match."
  ],
  "filed": "2024-05-24",
  "granted": "2026-09-15",
  "expires": null,
  "status": "active",
  "holder": null,
  "holder_url": null,
  "inventors": [],
  "times_cited": 0,
  "tags": [
    "consumer_electronics",
    "software",
    "telecommunications"
  ],
  "abstract": "A computing device may maintain a database of representative spectral characteristics. The computing device may also receive particular spectral data associated with a particular playback environment corresponding to the particular playback device. Based on the particular spectral data, the computing device may identify one of the representative spectral characteristics from the database that substantially matches the particular spectral data, and then identify, in the database, an audio processing algorithm based on a) the identified representative spectral characteristic and b) at least one characteristic of the particular playback device. The computing device may then transmit, to the particular playback device, data indicating the identified audio processing algorithm.",
  "url": "https://patentbrief.org/patent/us/12737152/playback-device-calibration-based-on-representative-spectral-characteristics",
  "markdown_url": "https://patentbrief.org/patent/us/12737152/playback-device-calibration-based-on-representative-spectral-characteristics/md",
  "google_patents_url": "https://patents.google.com/patent/US12737152",
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    {
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      "countryCode": "US",
      "title": "How Speakers Adjust Sound for Moving Listeners",
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    },
    {
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}