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Old August 6th, 2014, 03:43 PM   #1
Join Date: Jul 2014
Location: Toronto Canada
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Mixing 2 wireless audio channels and 1 (wireless) video signal

HI folks, appreciate some advice.

We routinely perform usability tests on physical medical devices that may be used to administer treatments to a patient. So typically one user would (for example) - prepare patient for treatment (usually a mannequin) - fill a device with a medication - prepare an injection site - administer the medication - clean up etc.

Now, as moderator, we observe the user performing these tasks. Goal is to have a record of each session that can be reviewed after the session for Q/A purposes. We typically use room-level audio and video recordings as the transcript, but often the quality and angles aren't very good.

So what would be ideal is 1) Have wireless mic and camera on the user (for recording what they say and see) 2) Have wireless mic on moderator (as they will be asking follow-up questions after the tasks are complete.

This would result in one digital recording with both audio channels mixed into 1 along with the video. The sessions are usually 30-60 minutes in length. I have found many partial solutions that I could tape together. Wondering if you folks have any recommendations.

The most important requirement is high quality audio, then the additional video.

Thanks for any help.
Vince Velocci is offline   Reply With Quote
Old August 6th, 2014, 06:56 PM   #2
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Join Date: Mar 2007
Location: North Hollywood, CA, United States
Posts: 807
Re: Mixing 2 wireless audio channels and 1 (wireless) video signal

When you say "wireless camera on the user" do you mean physically attached to the user, or shooting the user?

I think you could do a GoPro, a Teradek Bolt 300, and two Sennheiser SK 100 G3 wireless packs, a lav mic, and the EM 100 G3 desktop receivers. Add a record device, either a Blackmagic Hyperdeck Studio for standalone recording, or H.264 Pro Recorder for direct-to computer recording. If you want to be really fancy, a small audio mixer would let you more easily control the mic levels.
Edward Carlson is offline   Reply

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