I am testing vMix call after installing a RODECaster Pro to our studio setup. Previously, the calls came in fine and the callers had no complaints. However, the host of the show was hearing an echo that was quite disorienting. The RODECaster Pro has solve that issue but now the caller complains of an echo on their end. I have tried rerouting the audio with no success.

I am using the Master, Bus A, and Bus B. The Master goes into the interface and I return the audio back into Bus A (This is where the final mix is recorded) and only added Bus B in an effort to fix the vMix call issue. If I route the caller to Bus B and turn off the Master on their input, they can hear everything without an echo but the host cannot hear the caller. As soon as the Master is turned back on, the host hears the caller and the caller hears the echo. How can I fix this? I am so close to finally having our studio set up and really need to fix this issue!

Thanks in advance!

I have enabled USB mix minus in my Rodecaster. The echo is still there. The only way I have been able to remove the echo is to turn the headphones on the caller input off or nearly all the way down, but then I can't hear the caller and their audio is too low to be recorded.

Right now we are running the most recent version of vMix. The host uses a RODE Broadcaster condenser mic which is connected via XLR to the RODECaster Pro. I have the RODECaster set as an input on vMix, which sends the final mix into Bus A (this is also where our recording receives its audio). The callers' audio source is Bus B. I have everything that I want the caller to hear routed to Bus B. The callers' input is routed to both the Master and Bus B. If I only rout it to B, the host cannot hear them but they do not hear themselves echoing. As soon as they are routed to the Master, the problem is reversed (host hears them but they hear an echo).

The host does monitor through the RODECaster and we have the latest firmware. I DO have the USB mix-minus enabled as well. And yes, the host's mic is a single input. I think I've answered all of your questions. Is it possible that the caller is hearing the echo because I am routing their input into Bus B? If so, is there another way to rout them so that they are hearing the mix-minus AND the host is hearing them?

P.S. I have been told to mute the headphones in the general audio settings for the callers' inputs and it does eliminate the echo but also makes it so that the host and the recorder do not receive audio from the callers.

I am also having this issue....any resolution?

Experiencing this same issue - here's what I have found, along with my setup:

- Every caller is remote (obviously) -- so everyone is clearly using all sorts of different mics/cameras to call in.
- Every caller is using headphones
- This has happened no matter WHO calls in (in other words I have had this happen with 6 different callers across multiple configurations)
- vMix calls are routed to Bus B
- If 1 person calls in and EVERYONE mutes -- no problems.
- As soon as a second person unmutes, things CAN happen
- I say CAN, because this issue, while persistent, is not heard on every single sentence. It appears to only be heard if the speaker raises their voice even slightly, or, specifically, women's voices seem to trigger it a bit more then men's
- What is the issue? -- The person who spoke AND the other calls AND the master all hear the last few words echoed very quietly -- so literally everyone, including the speaker, hears the echo/repeat
- We are using vMix Advanced Call and everyone has all check boxes turned off -- HOWEVER, we have tested with "Echo Cancellation" turned ON and still we get this repeated dialogue
- In one test, it seemed I was able to eliminate the problem by going to each person's call and turning on an aggressive noise gate -- but this created it's own problems AND ultimately did not fix the issue
- There is no outside mixer involved, the entire broadcast is through vMix -- so call calls come into vMix Call, are routed to Bus B (the callers are only sent Bus B), and Bus B is sent to the Master - nothing else fancy or confusing
- Using vMix Pro

Here's hoping someone can help all of us experiencing this issue! It's incredibly frustrating *sad face*

Thanks all!

Make sure you use the seperate bus for the callers and use that bus as the return feed to them so that the mix minus works as designed.
Route the callers to the master in addition to make them audible on the stream.

When this happens try to isolate the issue and try to trace it down to it's origin. Try to minimize the setup until it's gone. When you notice the change you know what step was responsible for it.