/Patent Tracker
MetaPatent applicationAudio & voiceInterest 5/10

Meta patents sound system that cleans up audio using echo patterns

Patent drawing
Patent drawing from the official filing.

Meta describes a method that uses sensors to record a specific sound pattern, reverses it, and plays it back to create a cleaner final audio signal. The filing also covers a system that detects when multiple people are listening to the same stream and automatically mutes parts of the audio to prevent interference.

Why it mattersThis could improve how devices handle background noise or manage audio in shared spaces by using sound waves to cancel out unwanted echoes.

In the filing’s own words

A method comprising using an array of sensors to record a pitch-catch waveform, re-emitting and combining a recorded pulse-echo measurement of the time reversed pitch-catch waveform and the time reversed pitch-catch waveform, and generating a final output of the pitch-catch waveform, and a method for detecting, by a system, a plurality of users concurrently listening to an audio stream, muting, by the system, at least a portion of the audio stream, and transmitting the audio stream comprising the muted portion of the audio stream. Various systems and methods are disclosed.

What exactly they claim (claim 1)

1. A method comprising: using an array of sensors to record a pitch-catch waveform; processing the recorded pitch-catch waveform to create a time reversed pitch-catch waveform; emitting the time reversed pitch-catch waveform; re-emitting the time reversed pitch-catch waveform to record a pulse-echo measurement of the time reversed pitch-catch waveform; combining the recorded pulse-echo measurement of the time reversed pitch-catch waveform and the time reversed pitch-catch waveform; and generating a final output of the pitch-catch waveform.

Facts

Company
Meta (Meta Platforms Technologies, LLC)
Official title
SYSTEMS AND METHODS FOR SIGNAL CONTROL ACROSS AUDIO, OPTICAL, AND SENSING PLATFORMS
Publication number
US20260301726A1
Application number
19574011
Filed
Mar 20, 2026
Published
Oct 1, 2026
Inventors
4
Claims
2

Classified under

G10K 11/002 Physics & computingH04R 5/04 Electricity & electronicsG10K 2200/10 Physics & computingH04R 2430/01 Electricity & electronics
Read the full filing (official PDF) ↗ Open in the Patent Tracker

More from Meta in Audio & voice

Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.