Sonoptix Sonar Lag from RTSP stream

Third Party Products Sonar and Acoustics
1

Hi,

I’m facing significant amount of latency (1-2sec) with my Sonoptix sonar (v2.0.0) only when using the RTSP stream. I am using the RTSP stream to get the raw data from the sonar (rtsp://192.168.2.42:8554/raw), however it has 1-2 second latency when played with the VLC Player.

Meanwhile the “video” stream on the Browser (http://192.168.2.42/) shows near-zero latency (at least to the human eye).

The sonar is installed on the blueROV2 heavy accourding to the provided guidelines. https://bluerobotics.com/learn/integrating-the-sonoptix-echo-on-the-bluerov2/

Did I forget to fix some settings? Thank you in advance.

2

Hi @gavingavinchan, welcome to the Blue Robotics forum :slight_smile:

I’m not sure we’ve specifically tested the RTSP latency, but I can ask internally whether it’s something we’ve run into and have any insight on.

That said, your question is likely be better posed to Sonoptix, as it is their device and firmware you’re communicating with / streaming from, so they hopefully have additional insights as to whether higher latency is expected and/or can be adjusted or compensated for.

3

Thank you, I will ask Sonoptix as well.

4

Following up, the raw data stream was added via a firmware update after we did our primary testing of the Sonoptix Echo, and we haven’t meaningfully tested the feature.