Networked microphone device, method therefor, and media playback system
A technology for media playback, playback devices, applied in stereo systems, PA systems, electrical components, etc., to solve problems such as loud setting access and listening to digital audio restrictions
Active Publication Date: 2022-07-19
SONOS
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Problems solved by technology
[0005] It wasn't until 2003 that SONOS filed one of its first patent applications titled "Method for Synchronizing Audio Playback between Multiple Networked Devices" and began offering media playback systems for sale in 2005 for accessing and listening at loud settings Digital audio options are limited
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[0033] I. Overview
[0034] Embodiments described herein relate, inter alia, to techniques that facilitate calibration of media playback systems. Some calibration procedures contemplated herein involve recording devices (eg, networked microphone devices (NMDs)) detecting sound waves (eg, one or more calibration sounds) emitted by one or more playback devices of a media playback system. A processing device such as a recording device, a playback device, or another device communicatively coupled to the media playback system may analyze the detected sound waves to determine one or more calibrations for one or more playback devices of the media playback system. When applied, such calibration can configure one or more playback devices to a given listening area (ie, an environment in which the one or more playback devices are positioned while sound waves are emitted).
[0035] In some embodiments contemplated herein, the processing device may determine a first type of calibration. ...
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The present invention relates to a networked microphone device and method thereof, and a media playback system. Example techniques may involve performing aspects of spectral calibration using the applied spatial calibration. Example implementations may include receiving data representing spatial filters corresponding to respective playback configurations. The implementation may also involve causing the audio driver to output the calibration audio divided into repeated sets of frames, the set of frames including respective frames configured for each playback. Causing the audio driver to output calibrated audio may involve causing the audio stage to apply a spatial filter corresponding to the respective playback configuration during each frame. The implementation may also include receiving data representing spectral filters corresponding to respective playback configurations, the spectral filters being based on calibration audio output by the audio driver. When playing back audio content in a given playback configuration, the audio stage may apply specific spectral filters corresponding to that configuration.
Description
[0001] The application of this invention is a divisional application of the invention patent application No. 201780057093.3 whose application date is July 14, 2017 and entered the Chinese national phase on March 15, 2019, and is entitled "Spectrum Correction Using Spatial Calibration". [0002] CROSS-REFERENCE TO RELATED APPLICATIONS [0003] This application claims priority to US Patent Application Serial No. 15 / 211,835, filed July 15, 2016, and US Patent Application No. 15 / 211,822, filed July 15, 2016, the entire contents of which are incorporated by reference in their entirety in the text. Additional incorporation by reference is made throughout the disclosure. technical field [0004] The present disclosure relates to consumer products, and more particularly, to methods, systems, products, features, services, and other elements for media playback or aspects thereof. Background technique [0005] Until 2003, SONOS Corporation filed one of its first patent applications e...
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IPC IPC(8): H04S7/00H04R27/00H04R29/00
CPCH04S7/301H04R27/00H04R29/007H04R2227/005H04R2227/007
Inventor 蒂莫西·希恩
Owner SONOS