HP Remote Graphics Software 5.4.8 User Guide

Table 2-7 Linux RGS audio data paths
Audio Playback from the Remote Computer to the
Local Computer
Sending of microphone audio from the Local
Computer to the Remote Computer
1. The application-generated audio output.
2. If an audio device is installed, the application-generated
audio is routed through it.
3. If the Virtual Audio Device is installed, the application
generated audio is routed through it.
4. Audio from either the audio device is sent to the RGS
Audio Recorder.
5. The RGS Audio Recorder captures the audio, which is
sent by RGS to the Local Computer.
6. The RGS Audio Player on the Local Computer decodes
the received audio, and sends it to the audio mixer.
7. The output of the audio mixer is sent to the Local
Computer audio device.
8. The audio device drives an audio output device, such as
a speaker.
USB devices are Local: RGS on Linux does not support
locally-mounted USB microphones.
USB devices are Remote: Beginning at RGS 5.2.0,
certain USB microphones can be mounted to the Remote
Computer using the remote USB driver. The Remote Computer
must be running Windows. Remote USB is not supported on
the Linux Sender. See the previous section for a description of
Remote USB operation.
Support of sound recording devices on Windows
NOTE: The Windows Sounds and Audio Devices Properties dialog allows the user to select
the “sound recording device”. For simplicity, “microphone” is used below instead of “sound recording
device”. Remote microphone is not supported on Windows 7.
Prior to RGS 5.2.0, a Receiver-attached USB microphone couldn’t be remotely connected to the Sender
in the same manner as other remote USB devices (see
Remote USB overview on page 30 ). Audio from
a Receiver-attached USB microphone would need to be first processed by the Windows USB audio
driver on the Receiver. The audio would then be sent to the RGS Audio Recorder (see
Remote audio on
Windows on page 38 ) for capture and transmission to the Sender.
In order for a USB microphone to be used in this manner, USB devices are Local must be selected in
the Remote USB Configuration dialog during installation. This ensures the USB microphone is a local
device, allowing its audio to be captured by the RGS Audio Recorder. This capability allows use of any
USB microphone supported by Windows.
At RGS 5.2.0, the Remote USB driver (on the Local Computer) has been enhanced to support the USB
isochronous data type, which is commonly used for streaming data such as that generated by audio
and video devices. This enables certain isochronous USB microphones to be accessed directly by the
Remote Computer in the same manner as other USB devices.
To remotely attach USB microphones to the Remote Computer, either of these Remote USB
Configuration settings can be selected:
●
USB devices are Remote
●
USB devices are Local/Remote
42 Chapter 2 RGS overview