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movie file audio not connected to audio mixer

I have a Behring audio mixer with my Wirecast broadcast via USB cord. I have 2 studio mics, and an iPod connected to the audio mixer so that I can control the volume during my Wirecast broadcast. When playing a movie file, the audio works and my audience can see and hear the movie, but we cannot hear the movie audio in our control room unless we click the headphone symbol, but then we have an echo that the audience can hear. We can only control the movie audio volume from the Wirecast controls. Question: Is there a way to connect movie files (or anything sound played from the Wirecast PC) to the audio mixer? I have tried connecting a 3.5mm jack to back of Wirecast to the XLR on the mixer but did not work. Thanks.

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  • Brian Woodland said:
    but we cannot hear the movie audio in our control room unless we click the headphone symbol, but then we have an echo that the audience can hear.

     Please explain further. If you're referring to the online audience the way an echo can happen is that either your monitoring audio is going back into your mics (that's a room environmental problem you have to consider) or you're capturing system sound and the monitor audio is most certainly traveling through that.

    If it's the former, you'd need headphones to monitor or consider isolating mics from monitor speakers. If it's the latter then you might move the captured source to another computer and transmit over IP. Wirecast Pro can send Video (and Audio) out through a Blackmagic Video Out card and you'd be able to monitor that output (how depends on a lot of details on budget for such equipment)

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  • The audio mixer is your main audio device. All sources have to come in there, incl. Wirecast output. Make a mix minus for wirecast itself and ingest it as the only audio source in wirecast. Just mix video in wirecast and mix/monitor audio in the external mixer.

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  • Jens Jarke Thanks for your advice. I am a junior high teacher (running a TV studio at our school) with limited knowledge on this stuff as I mainly teach other subjects. Is there a place to find more details how to make a mix minus, how to ingest from Wirecast to a mixer, or the basics of how to connect a computer to an audio mixer? If not, this info still helps me narrow down the issue.

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  • CraigS My studio is separate from the control room, so I think the issue is how to connect the Wirecast to the audio mixer so there is a dedicated channel on the mixer to control the Wirecast output audio for any movie or other sound file. Currently my mixer has no control of the movie file volume. The Wirecast salesman told me if bought a USB mixer I would be able to control all sound from the mixer, including Wirecast outputs. Thanks again for your advice.

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  • Brian Woodland 

    Brian Woodland said:
    I think the issue is how to connect the Wirecast to the audio mixer so there is a dedicated channel on the mixer to control the Wirecast output audio for any movie or other sound file.

     Do you want to hear just the movie file from Wirecast sending that back to your mixer? You can create a Mix Minus in Wirecast so when you enable the Headphone icon only the Movie file is sent to monitoring (won't affect the online audience).

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  • CraigS said:
    Do you want to hear just the movie file from Wirecast sending that back to your mixer? You can create a Mix Minus in Wirecast so when you enable the Headphone icon only the Movie file is sent to monitoring (won't affect the online audience).

    Can I suggest what he may be asking for.

    By default, the audio you hear is track 1. You can go into the audio mixer with the pro version and specify a different track for your audio output.

    What would be better, is to specify an output interface for each audio "Track" in the channel map. This would allow for independent audio feed to both control room (who hear everything), and the studio (who only need to hear the video clip replay track). Yes, you can do a mix-minus to mute studio mic's - but then your control room can't hear the live talent.

    Multiple people have requested this type of functionality before.

    GK

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  • CraigS The problem is that the Wirecast movie file (or any sound from Wirecast) audio cannot be controlled by the external mixer even though the audience can hear the movie being played, we cannot control the volume with the ext. mixer during the broadcast. I have my 2 studio mics (Channel 1/2 on the ext. mixer) and my iPod for music (on Ch. 3 ext. mixer) working correctly. But there is nothing on the external mixer that is controlling the audio from Wirecast. Is there a way to get, for example, Channel 4 on my ext. mixer to control the Wirecast audio volume?

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  • Brian Woodland Probably much as Greg alludes to, not currently. Perhaps you can play the file in another computer in VLC, send it to Wirecast via NDI while sending that computer's audio into your mixer. Then you may need to adjust a timing offset of the VLC NDI source in Wirecast to make sure there's no latency between the video and audio.

    Basically, it seems you want to send movie file audio out from Wirecast without it going live, so it feeds back into your mixer and back into Wirecast as the mixer source. Unless there was a separate output something like that could work. Consider the processing path in the computer (and why Greg's request presents some challenges). Some sound cards (having a second one) would make something like this possible.

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  • CraigS 

    CraigS said:
    Consider the processing path in the computer (and why Greg's request presents some challenges). Some sound cards (having a second one) would make something like this possible.

    I don't know what magic they have to do this, but its available in vMix I believe. Just they don't make a product for Mac. But it is possible. Dante VIA allows multiple paths within their app, without any issues. I am really amazed that this is not yet available in the Pro version.

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  • Greg Kuhnert A computer, baring additional audio hardware, has a path out. Certainly one might devise a way if one could send one mix to the headphone jack and another to a speaker jack, etc. but, in hardware, they're normally both receiving the same signal.

    Software can certainly have multiple paths but it's hardware out to physical monitoring devices that presents challenges. Wirecast, as it is, can handle multiple sound destinations in software such that each ISO recording can have its own audio, Streaming and recording, and now, Rendezvous has track assignments. Computer hardware output doesn't easily. 

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  • CraigS said:
    Wirecast, as it is, can handle multiple sound destinations in software such that each ISO recording can have its own audio, Streaming and recording, and now, Rendezvous has track assignments. Computer hardware output doesn't easily. 

    Hi Craig.

    Virtual sound interfaces over USB for example to external mixing boards handle multi channel audio just fine. I understand that competing products are able to route audio via multiple audio busses... I am trying to understand why this would be a hardware challenge if it is possible with other products?

    GK

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  • Greg Kuhnert Please explain with a concrete example with both the program and computer. If output jacks are hardware independent they could receive different signal. If they are tied then both jacks get the same information. If you mean monitoring through USB perhaps that's different since it may be hardware independent of the computer's output jacks.

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  • CraigS said:
    Please explain with a concrete example with both the program and computer.

    Hardware - USB connection to say Rodecaster, or Yamaha MGX series or similar. Wirecast already supports multiple inputs... but not multiple outputs. Other systems allow multiple sends into those external mixers. I don't have that hardware, so I cannot test and verify myself - but from other streamers - I understand it is possible with vMix and OBS.

    GK

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  • Greg Kuhnert Try in OBS then. The only way I can see this working is with USB audio out since that can be independent of soundcard. 

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