← All products Editions
Compare editions Paid editions include all features of the Free edition, plus the capabilities listed below.
Function SRT TEST Signal SRT TEST Signal MULTI Generated Video Test Signal ○ ○ Color Bars and Noise Patterns ○ ○ Selectable Resolution and Frame Rate ○ ○ SRT Caller and Listener Modes ○ ○ SRT Encryption ○ ○ AAC-LC Test Audio ○ ○ MPEG-TS Recording ○ ○ Live Statistics ○ ○ OpenH264 Encoder ○ ○ Multiple Instances (up to 16) × ○
○ Included · × Not included
Verified information
System requirements
Device PC
Minimum OS Windows 10, version 17763.0 Requirements shared by the listed editions are shown.
Application views
Screenshots The same screenshots represent both the Free and MULTI editions.
SRT TEST Signal / SRT TEST Signal MULTI SRT TEST Signal color-bar test pattern and SRT transmission controls Verified changes
Release history SRT TEST Signal · Version 1.0.8 Date not verified
Added IPv4, IPv6, and DNS hostname destinations in caller mode. DNS candidates are tried in order and resolved again when reconnecting. Listener mode can accept IPv4 and IPv6 connections on the same port. Added Host / IP normalization and validation, plus logging in the standard Windows Logs folder. SRT TEST Signal · Version 1.0.6 Date not verified
Added caller/listener modes, histories of the 20 most recent Host / IP and Port values, and passphrase-based SRT encryption. Passphrases are now encrypted for the current Windows user before being saved. SRT TEST Signal · Version 1.0.5 Date not verified
Improved preview, video/audio timestamps, MPEG-TS PTS/DTS, and input handling under load. Added input time, transmission PTS, and Test Signal Drop Count to the Debug tab. SRT TEST Signal · Version 1.0.4 Date not verified
Added 25 / 29.97 / 50 / 59.94 FPS, a 1 kHz test tone, AAC-LC audio, and Auto Start. SRT TEST Signal · Version 1.0.3 Date not verified
Added the tabbed UI, settings export/import, stream ID, MPEG-TS recording, OpenH264, MediaMTX, and TS stuffing. Help
Documentation and FAQ 
