Product guide
SRT Preview
Receive one SRT feed with the free edition or monitor and record multiple feeds with PRO.
Editions
Compare editions
Paid editions include all features of the Free edition, plus the capabilities listed below.
| Function | SRT Preview | SRT Preview PRO |
|---|---|---|
| Real-time Video Preview | ○ | ○ |
| SRT Caller | ○ | ○ |
| SRT Listener | ○ | ○ |
| SRT Connection Settings | ○ | ○ |
| Connection History | ○ | ○ |
| Auto Start | ○ | ○ |
| Live Statistics | ○ | ○ |
| AAC Audio Playback | ○ | ○ |
| Audio Level Display | ○ | ○ |
| UI-hidden Mode | ○ | ○ |
| Settings Management | ○ | ○ |
| Clear Statistics | ○ | ○ |
| Per-channel Audio Controls | × | ○ |
| MPEG-TS Recording | × | ○ |
| Multiple Instances | × | ○ |
○ Included · × Not included
Overview
Use this guide to receive MPEG-TS over SRT, preview H.264 video, and monitor AAC audio on Windows. The free edition monitors one stream. The paid PRO edition runs up to 16 preview windows and adds recording and detailed audio controls.
Key features
- Listen for an SRT sender and accept a new connection after disconnection.
- Decode MPEG-TS/H.264 video with Windows Media Foundation and display it in real time.
- Decode AAC audio and play it through the Windows default audio output.
- Display bitrate, RTT, received packets and bytes, dropped data, connection time, resolution, FPS, and CH1/CH2 audio levels.
- Organize connection, monitoring, audio, recording, and system controls in tabs.
- Save settings for the application instance and support reset, import, and export.
- Hide the controls for a video-only display, then restore them with right-click or
Esc.
Installation
- Install the application from the Microsoft Store link below.
- Prepare the UDP port used by the sender.
- Confirm that the required audio output is available in Windows.
Basic configuration
- Enter the receive port and start listening.
- Start an SRT sender in Caller mode using the same UDP port.
- Confirm the connection state and live statistics.
- Select the required audio monitoring settings.
Settings
| Setting | Purpose | Available values |
|---|---|---|
| SRT mode | Choose how the receiver connects. | Caller or Listener |
| Address and port | Set the Caller destination or Listener port. | IPv4 address and port 1–65535 |
| Encryption | Enable SRT AES encryption and choose its key length. | Off, or On with AES-128, AES-192, or AES-256 |
| Passphrase | Set the passphrase used with SRT encryption. | 10–79 UTF-8 bytes |
| Stream ID | Set the SRT stream identifier for Caller mode. | Text or blank |
| SRT latency | Set the SRT receive latency. | 0–8000 ms |
| Audio volume | Adjust the playback volume for each audio channel. | 0–200%, in 1% steps; PRO |
| Audio mute | Mute either playback channel. | On or Off; PRO |
| Audio delay | Adjust playback delay for each audio channel. | 0.0–1000.0 ms; PRO |
| Recording | Record the received MPEG-TS stream. | On or Off; PRO |
| Recording location | Choose the recording folder and file name. | Folder path; date/time or custom file name; PRO |
| Hide UI | Show video without the control area. | Show or hide |
| Auto start | Start receiving automatically at launch. | On or Off |
| Bypass AV sync | Output media without AV-sync clocking and preroll. | On or Off |
| Settings file | Reset, export, or import application settings. | Reset, Export, or Import |
Main operations
Start reception and confirm the connection state before judging the video or audio result. Settings can be reset, imported, or exported when a known configuration needs to be restored.
FFmpeg sender example
ffmpeg -re -f lavfi -i testsrc2=size=1280x720:rate=30 -pix_fmt nv12 -c:v h264_mf -b:v 6M -f mpegts srt://127.0.0.1:9000
Hide the controls
Use Hide UI for a video-only display. Right-click the video or press Esc to restore the controls.
PRO-only features
- Configure each preview window with its own SRT listener port.
- Adjust volume, mute, and delay independently for CH1 and CH2.
- Open the Rec tab, select a destination and file name, and record the received MPEG-TS stream to a TS file.
- Verify feeds individually before operating a group of preview windows.
- Monitor storage and system capacity while recording multiple feeds.
Supported input
- Transport: SRT Listener
- Container: MPEG-TS
- Video: H.264
- Audio: AAC
System requirements
- Windows 10 or Windows 11 x64
- H.264 decoding support
- A Windows audio output device for AAC playback
Checks before use
- The incoming stream must contain supported MPEG-TS, H.264, and AAC content.
- Check the receive port and Windows firewall when Listener mode is used.
- Keep exported settings free of secrets before sharing them.
Troubleshooting
If the connection succeeds but media is missing, check the stream codecs and audio channel controls separately. Use the receiver FAQ for the next checks.