Sony SRG-A40 User manual
Version 1.0
Technical Guide | SRG-A40/SRG-A12
SRT introduction
Sony Version 1.0
Technical Guide | SRG-A40/SRG-A12 SRT introduction
1
CONTENTS
CONTENTS ............................................................................................... 1
1. Overview............................................................................................. 2
2. Flowchart............................................................................................ 3
3. Pre-configuration Settings................................................................ 4
3.1. Set IP address by using the RM-IP Setup Tool ........................................4
3.2. Setting the initial password ......................................................................4
3.3. Camera’s Video Codec Setting ................................................................4
3.4. Audio setting ............................................................................................5
3.5. SRT Setting ..............................................................................................6
4. Troubleshooting............................................................................... 13
5. Appendix .......................................................................................... 14
5.1. How to start/stop SRT transmission when the camera is set as the Caller
14
Revision History..................................................................................... 17
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Technical Guide | SRG-A40/SRG-A12 SRT introduction
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1. Overview
This document explains typical procedures and tips for the SRT connectivity when using Sony
Color Video Camera SRG-A40/SRG-A12. Hereinafter, it is called as “the camera”.
Services and software provided by other companies
・Separate terms and conditions of use may be applied.
・Provision of services and software updates may be interrupted or terminated without notice.
・Services and software content are subject to change without notice.
・Separate registration and/or payment may be required.
Please note that Sony Corporation is not responsible for any claim, from customers or third
parties, arising from any use of services and software provided by other companies
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Technical Guide | SRG-A40/SRG-A12 SRT introduction
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2. Flowchart
The following flowchart shows an outline of the procedure for enabling the SRT connectivity
function of the camera described in the next chapter.
*Please refer to the manual of devices/apps to be connected.
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Technical Guide | SRG-A40/SRG-A12 SRT introduction
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3. Pre-configuration Settings
This chapter describes some pre-configuration settings you will need before activating the SRT
function for the camera.
3.1. Set IP address by using the RM-IP Setup Tool
For IP communication, appropriate IP address needs to be set to the camera. You can use RM-IP
Setup Tool to assign IP address to the camera. Please refer to the RM-IP Setup Tool Guide for more
details.
[Note] DHCP setting cannot be enabled from the RM-IP Setup Tool.
3.2. Setting the initial password
Following the Operation Instruction, initial password setting is necessary to enable HTTP access of
the camera etc..
You can refer to the following section in the Operation Instuction of the camera.
[Accessing the Camera from a Web Browser] > [Setting the Initial Password]
3.3. Camera’s Video Codec Setting
For SRT function, the Video Stream 1 channel is only available for SRT streaming. Only [H.264]
can be selected as Codec 1 setting.
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Technical Guide | SRG-A40/SRG-A12 SRT introduction
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3.4. Audio setting
Please configure audio setting in [Stream] > [Audio Stream] tab in Web App Menu accordingly.
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Technical Guide | SRG-A40/SRG-A12 SRT introduction
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3.5. SRT Setting
Before starting SRT transmission, port number to be used and whether the camera is set to Caller
mode or Listener mode needs to be determined.
Caller means that the camera initiates the transmission, while Listener means that the camera waits
for it.
Whether it is Caller or Listener has nothing to do with whether it transmits data (audio/video) and
vice versa. In order to have correct SRT setting, one side has to be set as Caller mode, while the
other side is to be set as Listener mode.
In general, a device or an app inside a firewall is to be set as the Caller and a device or an app having
global IP address, such as a server equipment, is to be set as the Listener.
Both the Caller mode and the Listener mode are supported by the camera. If the camera is set as the
Caller, set the destination device/app as the Listener. If the camera is set as the Listener, set the
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destination device/app as the Caller.
Some device might support either the Caller or the Listener only. In that case, set the camera’s mode
properly to establish the connection.
Please refer to the manual of a device or an app to be connected as well.
Regarding the SRT connection environment, please refer to the information announced from SRT
Alliance below.
https://www.srtalliance.org/srt-deployment-guide/
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3.5.1. When setting camera as the Caller
Open [Stream] > [Stream] tab of the Web App Menu, and select [SRT-Caller] in [Stream Setting] >
[Setting].
Set the prefix letters of “srt://” followed by a destination IP address to connect to and [:] followed
by the port number in [SRT] > [URL]. Press [OK] to complete the setting.
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3.5.2. When setting camera as the Listener
Open [Stream] > [Stream] tab of the Web App Menu and select [SRT-Listener] in [Stream Setting]
> [Setting].
Set the port number of the camera in [SRT] > [Port Number]. Press [OK] to complete the setting.
3.5.3. Setting of Latency and TTL
Set [Latency] and [TTL] upon the transmission environment.
It is recommended to set enough latency according to RTT from the camera to the destination
measured in advance.
For the recommended setting value, please refer to the information announced from SRT Alliance
below.
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