BM Webpresenter Audio

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Stuart McCollum

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Jun 27, 2021, 5:16:50 AM6/27/21
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Hey Guys, 
I am able to bring the Blackmagic Web-presenter in as a camera queue, however, I am unable to bring the audio in as a mic source. Does anyone know if this is possible or will I have to use an external interface to bring in the audio separately? 

I have tried creating an aggregate device and using that to bring in the audio with no luck, I am have sound-flower installed but I just cant seem to get anything working here.

Any help would be much appreciated.

micpool

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Jun 27, 2021, 11:03:39 AM6/27/21
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I'm slightly confused by your question. BM web presenter is normally used as a transmission device to streaming services, and not as a video source for QLab. It would be more usual to connect QLab's outputs to BM Web Presenter, than the other way round.

Could you give more details of your use, and the output connectors you are using on the unit for your feeds into QLab.

Mic

Stuart McCollum

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Jun 27, 2021, 11:18:02 AM6/27/21
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Hi Mic,
I understand what you mean about normally sending information to the web presenter for streaming.  On this occasion I want to take an external video and audio source that is connected to the web-presenter and bring it into qlab as a source. Qlab will then output this audio and video to a screen as normal.

The Web-presenter is connected via USB

Michael Heath

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Jun 27, 2021, 11:18:45 AM6/27/21
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On Sun, Jun 27, 2021 at 8:03 AM micpool <m...@micpool.com> wrote:
I'm slightly confused by your question. BM web presenter is normally used as a transmission device to streaming services, and not as a video source for QLab. It would be more usual to connect QLab's outputs to BM Web Presenter, than the other way round.

That's not really true. The original web presenter was just a device for converting a SDI video feed into a class-compliant USB "webcam" input.  While people frequently use this to feed OBS or other encoding/streaming software, there's nothing about it that is fundamentally tied to streaming. 

There is a newer (last year or so) model of Web Presenter that DOES have a built-in streaming capability. But it's still very new and obscure; most people who mention "web presenter" are talking about the original generation. 

As for the OPs original question, I'm not sure what the problem is. The audio should come in just like any other webcam audio input. It works fine for me. 

micpool

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Jun 27, 2021, 11:51:04 AM6/27/21
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Sorry, I wan't aware there were 2 BlackMagic Web Presenters, I was referring to the Web Presenter HD, which as you say is very recent.

You should be able to do this in QLab with an aggregate device. I don't have a BM to hand but here is the set up for a different USB webcam interface with mono audio, in an aggregate device with the built in output of the Mac.


Screen Shot 2021-06-27 at 16.48.44.png


Mic

micpool

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Jun 27, 2021, 12:04:42 PM6/27/21
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It would also probably be useful if you could post a screenshot of your aggregate device, as is you have audio inputs on your output audio interface there might no be a 1-1 correlation between ins and outs.

Also, check you have audio and video coming on the device by using Quicktime player. Select movie recording from the File Menu and select your audio and video sources in the record window.

Mic

On Sunday, June 27, 2021 at 10:16:50 AM UTC+1 stu...@bnlproductions.co.uk wrote:
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