![]() One or more ACXCIRCUIT objects created by the Vendor Specific Audio Driver Stack for its streaming path.Īn ACXCIRCUIT object created by the Bluetooth LE Audio profile implementation on Windows. Short for audio class extensions, which is the driver model required by all audio drivers to support for Bluetooth LE Audio on Windows. The Broadcast Isochronous Stream transport is used for connectionless audio data transfers. The Connected Isochronous Streams transport is used to send and receive unicast audio data between Bluetooth LE devices. The Published Audio Capabilities Service defines a standard way for Bluetooth LE Audio devices to report its supported audio codec capabilities. The Audio Stream Control Service defines a standard way for Bluetooth LE Audio devices to configure and establish unicast audio streams. The Telephony and Media Audio Profile specifies interoperable configurations of the lower-level audio services and profiles. The Basic Audio Profile defines how devices can distribute and consume audio using Bluetooth Low Energy (LE) communications. Termīluetooth audio streaming that uses the hands-free profile (HFP) and advanced audio distribution profile (A2DP)Ī single remote Bluetooth LE Audio device or set of Bluetooth LE Audio devices that together compose a single audio endpoint from the perspective of Windows. In addition to the terms defined in this table, this document also references terms defined by Windows audio class extensions. The VSAP software interface uses Windows audio class extensions (ACX) and more interface properties defined in this document. This document defines the Windows Bluetooth vendor specific audio path (VSAP) to allow platforms to use vendor-specific solutions to enable Bluetooth LE Audio streaming. As of version 5.3 of the Bluetooth core specification, there's no standard defined host controller interface (HCI) for host platforms to send and receive isochronous data to and from the Bluetooth controller. Introductionīluetooth LE Audio enables streaming unicast or broadcast audio to Bluetooth LE devices over an isochronous transport. ![]() This article provides an overview of Bluetooth LE Audio introduced in Windows 11 version 22H2 (KB5026446).
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