vMix Virtual Audio Capture records all audio from the default sound card primarily because QuickTime and Flash/RTMP provide no control over the output audio device whatsoever making a global capture the only way to record them.

If most customers could do without recorded audio from QuickTime and Flash/RTMP sources then I could theoretically implement a toggle switch in the vMix Virtual Audio Capture.

This is a big project however so its not something that will be in the final v3 release.

A play all button would be very helpful so that synchronized videos are sure to start at the same time.

Is anyone else having trouble with videos automatically pausing even when the "automatically pause preview input after transition" check box is not selected?

Hi,
I have tested you latest version of vMix and I really like it :-)
I am trying to use it to mix live event (sport) (and later stream to internet (rtmp-server) using AdobeFMLE)
The biggest problem I have is the distance between the cameras and the mixer (> 100 meters).
So far my best working solution has been to stream all cameras to a locally placed RTMP server (Gbit network),
then pull the camera streams from the local RTMP-server (Gbit) to vMix using the "Flash tab input" and enter rtmp-addr.
What is you recommended solution for this problem?? (Limited budget!!)
If this is "one" sensible way of doing things I have some suggestion for new functions...

Can you make a manually adjustable buffer for the RTMP stream input (more predictable delay).
The auto buffering is probably nice but I need the cameras to be more or less in sync for mixing.
Camera suddenly increasing the buffer is not "what I wish for" (I have seen it a couple of times)
(Same delay on all cameras when mixing is OK)
A buffer from 0-5sec. in increments of 0.1s??? If buffer empty: freeze picture until restored.
(xSplit has a working stable rtmp-buffer, but is not really a mixer at all)

Option of disabling buffer progress bar in picture for RTMP-stream.

Can you expand the remote screen capture to also include a "remote device capture",
and have it streamed in your preferred format/protocol to Mixer?

Can you make an output to rtmp not just http stream.

Still evaluating but have found no better alternative than vMix (price/features/performance) :-)

Regards
Kjetil

I have been testing this out on Windows 8 Consumer Preview. I realize its a few months from launch still but I thought I would bring up a little issue I ran into getting vmix to work properly. By default, it will come up and work fine for a moment, but then the interface will freeze. It continues to play, record, or stream to external but the interface is completely frozen, can't even move the window around or hit the x. Not entirely sure what the trigger is, whether time or something else. I set it to run in Windows 7 compatibility and it has worked perfectly ever since.

I will add for anyone else using this with Flash media encoder, fmle needed the same treatment or it dropped the stream every few minutes.

Hello,

Yesterday I got an error message "Recording has stopped unexpectedly" for the 2nd time during a live production. This time I did not loose the internet connection, and recording still stopped. To find out what the source of the problem is, maybe its a good idea to display more error information? We have a lot of people working with vMix and during these critical seconds its not always convenient to send error back to vMix serevr, but a human readable more detailed error message could help a lot.

Dundurs

Dundurs,

Could you provide the following information to help me diagnose the problem:

1. What version were you running?
2. What codec and audio device were used during the recording?
3. Were you able to send an error report?

The error message itself provides some detailed information at the bottom of the error window where available.
If it says "Codec Not Responding" this can indicate the codec has stopped compressing and hasn't provided a reason.
If it provides more detailed information this can be used to determine if there is an issue with vMix itself.

Regards,

Martin
vMix

Another problem I have come across is a choppy audio in some cases when streaming using FMLE. You can check out the recording here: http://video.tiesraides....120515121702_latun_0.mp4

We are having this problme on two of three systems, where we are testing vMix Virtual Audio device and latest vMix version. We have tried playing local audio, audio from line in, audio from hauppauge and result is all the same. We have tried using MP3 and AAC encoder and that did not help either.

FMLE config is the following:
<device>vMix Virtual Audio Capture</device>
<crossbar_input>0</crossbar_input>
<sample_rate>44100</sample_rate>
<channels>1</channels>
<input_volume>100</input_volume>

I vMix we are forwarding audio to the Default Direct Sound Device.

Another thing is that the sound is ok if we listen to it via speakers on vMix machine, the problem seems to come up when FMLE uses vMix Audio device.

Dundurs

Thanks for the response, Martin. Looking forward to the new version.

Another issue I came across:
I wanted to assign a button to turn on/off sound of input1. To do that I created a keyboard shortcut with key: a, function: audio, duration: 1000, input: [input_name]. However when pressing "a", nothing happens. Perhaps Im doing something wrong? This would be very useful functionality in my case (to avoid using mouse).

Hi,

Could you try again without adding the input in the middle now it is working? I suspect that is a coincidence.
You have probably run into the USB bandwidth limit that applies when plugging in more than one USB device into a single hub.
To fix this, install each capture device in the USB port as far away on the motherboard as the other port as possible. If that doesn't work you will need to install a separate USB input card for the second device.

Regards,

Martin
vMix