View Your SPL on Any Device with Smaart Webviewer
Monitoring SPL levels remotely has never been easier. With Smaart v9’s built-in Webviewer, you can view SPL meters, history, and alarms from any device connected to the same network. Whether it’s a phone, tablet, or another computer, the Webviewer makes it simple to keep an eye on your system without being tied to the main machine.
How to Enable the Webviewer
- Start Logging in Smaart SPL. The Webviewer requires logging to be active.
- Open Options > API in SPL Config.
- Optionally, set a password for secure browser access.
- Check Enabled to start the Webviewer server.
- On any device connected to the same network, open a browser and enter the host computer’s IP address or hostname and port (e.g.,
192.168.1.10:26000).
⚠️ Make sure your device is on the same network as the Smaart computer—otherwise, the browser won’t be able to connect.
Why Use the Webviewer
- View SPL levels remotely without being at the SPL host machine.
- Multiple devices can connect at the same time.
- Provide FOH engineers, promoters, or team members with a read-only overview of SPL levels.
- Keep the main Smaart laptop tucked away while still sharing data.
Pro Tips
Combine with SPL alarms to instantly see when levels cross your thresholds.
The Webviewer updates in real time, so it’s perfect for live shows and rehearsals.
Use a tablet or small display as a “traffic light” meter for quick visual checks.
is that true? ⚠️ Make sure your device is on the same network as the Smaart computer—otherwise, the browser won’t be able to connect. ???
Yes — that statement is true for the SPL Webviewer. The official documentation says you connect from another device by opening a browser and entering the host computer’s IP or hostname and port on a device that shares a network connection with the machine running Smaart SPL. In other words, the client device needs network access to the same local network the Smaart machine is on in order to reach that address. Rational Acoustics
Here’s what the documentation makes clear:
- The Webviewer serves data over the local network. A mobile device or PC must be able to reach the Smaart host’s IP address and port — which generally means they are on the same network or at least in a routable network segment. Rational Acoustics
- The guide explicitly directs you to enter the host’s IP and port in a browser on the client device that has a network connection to the SPL host. Rational Acoustics
So the note you saw (“make sure your device is on the same network… otherwise, the browser won’t be able to connect”) is essentially correct: if your browser device cannot reach the host computer’s IP and port (due to being on a different network, subnet, behind NAT, etc.), the connection will fail without additional network configuration.
If you want to check your venue’s SPL readings from a lounge chair at the Hilton in the Bahamas, welcome to the wild world of IT advice. Smaart’s Webviewer works on the local network—remote access requires either a VPN or port forwarding.
A VPN is secure and reliable but requires setup and software. Port forwarding is faster but exposes your system to the internet, with all the risks you can imagine.
Murphy’s Law: anything that can go wrong, will—so always test on-site first. For most shows, the Webviewer works perfectly on the same network.
Smaart is excellent on its own, but most users find they get much more out of it after some structured training. That’s where our seminars come in. At TZ Audio we run practical seminars, both online and in-venue. We offer seminar-only or full “all you need packages” including software & hardware. It’s simply the fastest way to become comfortable and confident with the measuring a sound system.
If you’re in Norway, Sweden, Denmark or Iceland – or elsewhere – we offer is online seminars and traveling to Norway is a valid option too of course. We’re here if you have any questions about the software or upcoming seminars.
Thanks for reading!