3.9 – Bidirectional audio redirection (RDP)

Audio redirection must be enabled in the RDP server first.

For microphone redirection, Chrome 53, Edge 12, Firefox 36, Safari 11 and secure context (HTTPS) are required.

playSound=0 to bring remote sound to local.
audioRecord=on to enable microphone redirection.

Settings for microphone in RDSH:

Group policy:
The path to the group policy is the following:
Computer Configuration / Administrative Templates / Windows Components / Remote Desktop Services / Remote Desktop Sesssion Host / Device and Resource Redirection

Please also make sure you “Allow apps to access your microphone” if you are connecting to Windows 10 or 2019:

GPO Path:
Computer Configuration\Policies\Administrative Templates\Windows Components\App Privacy

GPO:
Let Windows apps access the microphone

1.1 – Features

1.2 – Architecture

1.3 – What's the difference

2.1 – Install J2SE Software Development Kit (JDK)

2.2 – Install as a Windows service

2.3 – Install as Linux/Unix daemon

2.4 – Install as macOS daemon

2.5 – Install HTML client on other web servers

2.6 – Run SparkView as a container (Docker)

2.7 – Install as PWA

2.8 – Integrating a license

3.1 – Gateway

3.2 – HTTPS and WSS (WebSocket secure connection)

3.3 – Remote Desktop Web Access Portal Integration

3.4 – Servers & RDP options

3.5 – Users

3.6 – Easy printing

3.7 – RemoteApp and start a program instead of the whole desktop

3.8 – Clipboard redirection and shared clipboard

3.9 – Bidirectional audio redirection (RDP)

3.10 – File share (uploading and downloading)

3.11 – Session Recording and Playback

3.12 – Session Shadowing (join or share an active session on gateway)

3.13 – Native RDP shadowing (join any active RDP sessions)

3.14 – Touch interface (iOS, Android etc)

3.15 – Touch remoting

3.16 – Hyper-V Console and Enhanced Session Mode

3.17 – RDP connection cache/pool

3.18 – Symlink (access link)

3.19 – Macro recording

3.20 - Remote assistance

3.21 – RFB (VNC) protocol support

3.22 – SSH and Telnet

3.23 – Smart Card Redirection

3.24 – Scanner redirection

3.25 – USB redirection

3.26 – OAuth 2.0/Okta integration

3.27 – Active Directory, Azure AD, LDAP, RADIUS integration

3.28 – Using Java parameters

3.29 – Send logs to syslog

3.30 — Add HTTP/S proxy entry

4.1 – config.html

4.2 – file.html

4.3 – join.html

4.4 – login.html

4.5 – player.html

4.6 – rdp.html

4.7 – report.html

4.8 – shadow.html

4.9 – ssh.html

4.10 – telnet.html

4.11 – vnc.html

4.12 – Further files and views

5.1 – Session management

5.2 – Multi-Monitor

5.3 – SMB2 and SFTB file proxy

5.4 – Deploy, run and test applications in the cloud

5.5 – IP filter (iptables)

5.6 – SNMP integration

5.7 – SSH authentication with keys

6.1 – Reporting API (query server status, client side JavaScript API)

6.2 – RDP library (client side JavaScript API)

6.2.1 – RDP parameters

6.2.2 – Passing parameters via URL (Connection String)

6.2.3 – Passing parameter via object or cookie

6.2.4 – Usage of RDP class

6.2.5 – Extend RDP: Virtual Channel and Dynamic Virtual Channel

6.2.6 – Extend Gateway: Gateway Channel

6.3 – Plug-ins (server side Java API)

6.4 – HTTP Request API (server side)

7.1 – Reverse Agent: Getting started

Appendix A – Shortcut keys

Appendix B – Browser support

Appendix C – EchoHandler and network check

Appendix D – configuration example for nginx

Appendix E – configuration example for Apache Proxy

Appendix F – configuration for Juniper, Cisco, Dell etc SSL VPN

Appendix G – SMB path

Appendix H – Ping

Appendix I – TrustStore