Using Source-Connect Pro X advanced multi-channel features
Source-Connect Pro X lets you stream high-quality surround sound audio over the internet, supporting both 5.1 and 7.1 surround formats. This is perfect for remote mixing, post-production work, and collaborative audio projects.
Important Limitation to know about
There's one key limitation: Channel 4 automatically includes a low-frequency filter (called an LFE filter) that you cannot turn off. This filter is designed for the subwoofer channel in surround sound, but it can cause problems if you need that channel for other purposes.
Common challenge when you need more channels
Many professional workflows require additional channels beyond the standard surround setup. For example, you might need:
- Timecode signals (LTC) for synchronization.
- Additional audio tracks.
- Reference signals.
When this happens, the built-in LFE filter on Channel 4 can interfere with your workflow.
Three Solutions to try
Solution 1: Switch to RTS Sync (Recommended ⭐)
What it means: Instead of using a separate channel for timecode (LTC), use Source-Connect's built-in internet synchronization feature called RTS.
Why this works:
- Frees up audio channels since you don't need one for timecode.
- You only need 7 full-quality audio channels.
- Your local equipment can still use traditional timecode (LTC) for synchronization.
- RTS handles the tricky part of staying in sync over the internet.
Best for: Most users, as it requires minimal changes to your existing workflow.
Solution 2: Run Two Connections at Once
What it means: Use two separate Source-Connect sessions simultaneously - one for 6 discrete channels and another for stereo.
The catch: You'll need to manually synchronize these two connections.
How to sync them:
- Send a short "blip" sound through all channels on both connections.
- Record both connections.
- Measure the time difference between when the blip arrives on each connection.
- Add a delay plugin to whichever connection arrives first, matching the time difference.
- Use Source-Connect's "fixed latency" setting to lock in this timing
Best for: Advanced users comfortable with audio timing and delay compensation.
Solution 3: Use the LFE Channel Creatively
What it means: Send your click track or reference signal through the filtered LFE channel, then process it back to normal audio on the receiving end.
How it works: The LFE filter will affect your signal, but you can work around this by treating it as a "processed" version and re-triggering a clean version locally.
Best for: Specific situations where you need to work within the existing channel limitations.
Our Recommendation
Go with Solution 1 - switching to RTS synchronization. It's the simplest approach that maintains professional-quality results while requiring the least changes to how you normally work.
The key advantage is that RTS is specifically designed for internet-based synchronization, while your local studio gear can continue using traditional timecode methods. You get the best of both worlds without the complexity of managing multiple connections or working around channel limitations.