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The RDK Voice Service is a service for transmitting voice data over BLE in the RDK ecosystem. The RDK Voice Service is specifically designed to enable voice control of a BLE voice client. 

This document defines detailed requirements for the RDK Voice Service. It is intended to specify transmission of voice data from an RVS server to an RVS client.

Table of Contents
1. Introduction Table of Contents
1. Introduction
1.1 Overview
1.2 Purpose of Document
1.3 Typographical Conventions
1.4 Revision History
2 References
2.1 Normative References
3 Terms and Definitions
4 Abbreviations and Acronyms
5 Introduction
5.1 Conformance
5.2 Service Dependency
5.3 Bluetooth Specification Release Compatibility
5.4 GATT Sub-Procedure Requirements
5.5 Transport Dependencies
5.6 Error Codes
5.7 Byte Transmission Order
6 Service Requirements
6.1 Service Declaration
6.2 Service Roles
6.3 Service Sequence Examples
6.3.1 Push-to-talk Voice Session Sequence
6.3.2 Explicitly Rejected Push-to-talk Voice Session Sequence
6.3.3 Far-Field Voice Session Sequence
6.4 Characteristic Overview
6.5 Audio Codecs Characteristic
6.5.1 Audio Codecs Characteristic Value
6.6 Audio Gain Characteristic
6.6.1 Audio Gain Characteristic Value
6.7 Audio Control Characteristic
6.7.1 Audio Control Characteristic Value
6.7.2 Audio Control Encoding Value
6.7.3 Audio Control Enable Value
6.7.4 Audio Control Enable Behaviour
6.8 Audio Response Characteristic
6.8.1 Audio Response Characteristic Value
6.8.2 Audio Response Characteristic Behaviour
6.9 Keyword Detect Characteristic
6.9.1 Keyword Detect Characteristic Descriptors
6.9.1.1 Client Characteristic Configuration Descriptor
6.9.2 Keyword Detect Characteristic Value
6.9.3 Keyword Detect Characteristic Behaviour
6.10 Beamformer Data Characteristic
6.10.1 Beamformer Data Characteristic Value
6.10.1.1 Beam Data Field
6.10.1.2 Client Characteristic Configuration Descriptor
6.10.2 Beamformer Data Characteristic Behaviour
6.11 Audio Data Characteristic
6.11.1 Audio Data Characteristic Descriptors
6.11.1.1 Client Characteristic Configuration Descriptor
6.11.2 Audio Data Characteristic Value
6.11.2.1 G.726 and IMA/DVI ADPCM Frame Format
6.11.2.2 Audio Frame Buffering

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