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Investigation titles and descriptions are summarized by AI from Meta based on reports submitted by developers
USB-C Microphone Mutes Built-in Speakers on Quest 3
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Issue
1 report
Created about a day ago
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Category
Inputs > Other Input
Platform
Unity
Investigation summary
When a USB-C input-only microphone is connected to Quest 3, the built-in headset speakers are muted, despite the USB device having no speaker or DAC capability. This behavior contradicts standard Android AOSP behavior and blocks professional use cases such as therapeutic VR, education, and live streaming. The issue arises from Meta Horizon OS routing all audio to the USB-C port and muting the built-in speakers when any USB-C audio device is connected. A proposed fix involves checking the USB device's Audio Class descriptors before modifying output routing, ensuring that the built-in speakers remain active when an input-only device is connected.
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Virtual reality / Meta Horizon
Virtual reality / Meta Horizon
Virtual reality / Meta Horizon
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