FORUMS: list search recent posts

Using Skype to Bring Q&A Audio from Remote Location into Broadcast Audio

COW Forums : Audio Professionals

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
Greg Ondera
Using Skype to Bring Q&A Audio from Remote Location into Broadcast Audio
on Mar 4, 2013 at 8:41:56 pm

We tried to use Skype to bring in audio into our mixers from a remote location through and from a set of laptops but could only get a feedback loop of some kind. Both locations had Mackie mixers and used laptops to handle the Skype calls. But every time we tried to do this Q&A thing from the remote location we had problems. Is there a tried and true way to transmit a Q&A to an audience to and from a remote location through an internet platform? Is there a reason why Skype can't get plugged into an audio configuration? Is a conference call system at both ends the only way to bring in the audio and broadcast it at the same time? Or does the questioner at the remote location need to be isolated from the speaker system within their room somehow?

Greg Ondera
http://www.Plexus.tv
http://www.SurgeonToday.org


Return to posts index

Brian Reynolds
Re: Using Skype to Bring Q&A Audio from Remote Location into Broadcast Audio
on Mar 5, 2013 at 1:01:10 am

I have not used skype to do this but the principle is the same...

In LIVE News feeds etc for broadcast a 'Mix-Minus' is used, Let me explain.... From the studio a FULL mix is sent to the remote location MINUS what the remote is sending back to the studio..... and visa versa. In news broadcasts remotes often wear 'in ear' monitors but speakers can be used at a low- moderate level.
If a PA setup is required at the remote location the 'presenters' mic need to be mixed in at that remote location.

I have done many medical setups over the past few years with great success most of them are Q&A from a lecture hall (100+ people) to an active operating theatre.

In the lecture hall we normally have 1/2 podium mics and up to 2 roving radio mics and a lapel radio mic on the host person giving the lecture + other play out machines + the remote feed ALL going to PA via a small desk (Mackie style)
A feed of all the inputs of the desk are sent out via an AUX channel.... the remote incoming feed MUST NOT be sent back to the remote location.

At the remote end we use a small mixer 8 channel (mackie style), the normal mic set up might be 4 radio lapel mics, 1 hand held radio for introductions and a standby cable mic. ALL these mics are mixed to LEFT channel of the mixer with the pan control and this feed is sent to the lecture theatre.
The return audio (from the lecture hall) signal is brought into the mixer and panned to the RIGHT channel and this then goes to a small powered speaker out of the way in the operating theatre.
This set up enables every one in both the lecture hall and operating theatre to talk freely to each other.


Return to posts index

Greg Ondera
Re: Using Skype to Bring Q&A Audio from Remote Location into Broadcast Audio
on Mar 5, 2013 at 1:12:38 am

Thanks for this. What we had is a presenter audio being sent from CA to CO. Our audience and their audience had speakers and an audio system, mixers and that. We were broadcasting through streaming video so they were seeing us but we were not seeing them. So they (remote) tried to use Skype in their mixers so they could pick up their microphones and ask us questions, while we were also taking it into our mixer, which of course was going out into the cameras in the stream. So I'm thinking it is one big feedback loop. Nasty thing. And then there is a little delay in the broadcast stream as well. So maybe it really isn't a feedback loop but some clashing technology. But is there a way or some technology that we could have used to the remote site could hear us as well as we hear them? Seems like simply because there was a delay in the stream it might be a problem.

Greg Ondera
http://www.Plexus.tv
http://www.SurgeonToday.org


Return to posts index


Brian Reynolds
Re: Using Skype to Bring Q&A Audio from Remote Location into Broadcast Audio
on Mar 5, 2013 at 1:32:41 am

A delay shouldn't be a problem at all... its just getting the correct things going to the correct places.
Sometimes it can take a while to get your head around things.

Just a couple of other tips, if your cameras have SDI out its a great way to send the audio back as well.

CAT5 cable is able to carry 4 channels of analogue audio in either direction. (most hospitals have CAT 5 points all over the place)


Return to posts index

Greg Ondera
Re: Using Skype to Bring Q&A Audio from Remote Location into Broadcast Audio
on Mar 5, 2013 at 5:48:34 am

Thanks. Since Cat 5 sends out 4 channels, that may be a solution.

Greg Ondera
http://www.Plexus.tv
http://www.SurgeonToday.org


Return to posts index

Brian Reynolds
Re: Using Skype to Bring Q&A Audio from Remote Location into Broadcast Audio
on Mar 5, 2013 at 7:53:36 am

Cat5 works better at line level over long distances.. Here is a link for some more info.
http://audio-video-supply.markertek.com/broadcasting/Insta-snake
OR you can make your own.

You have probably also found lead gowns used in theatres are great RF stoppers and the radio mic TX need to be placed above shoulder height to get any range at all.
The powered speaker we use in the theatre are (one only) Fostex or Yamaha personal monitors. They are more than enough for most productions. http://www.fostexinternational.com/docs/products/6301_Analogue.shtml or http://au.yamaha.com/en/products/proaudio/speakers/ms101iii/?mode=series


Return to posts index


Al Bergstein
Re: Using Skype to Bring Q&A Audio from Remote Location into Broadcast Audio
on Mar 5, 2013 at 3:21:52 pm

I'm curious. I've not needed to mic Skype yet for live recording, but would think that if you have a computer feeding Skype to a studio, why would you have a problem if you are running the audio feed out of the computer's audio jack and into a mixer, then mixing it with the rest of the room you are in? If the speaker(s) are using a headset mic, or even a standard studio radio hanging in front of them, and feeding back into the computer it would likely be ok, right? At the far end, they would simply be hearing what you were saying into the mic. Or not? I ask be I occasionally help out at a local radio station and they haven't yet set themselves up doing this kind of thing, and I have thought it would be a good idea.

Just figuring I'd be prepared for the day this happens.

Al


Return to posts index

Greg Ondera
Re: Using Skype to Bring Q&A Audio from Remote Location into Broadcast Audio
on Mar 5, 2013 at 4:10:54 pm

In our situation we are broadcasting both to speakers in a large room at both locations and not isolating just to headsets. I've seen this done before over telephone lines and that but always through a separate speaker system over a line. So I'm not sure what is going on. Is there something to Skype as an I/O into the system that makes a buzz? We tried to deal with it as best we could, but couldn't get it.

Greg Ondera
http://www.Plexus.tv
http://www.SurgeonToday.org


Return to posts index

Brian Reynolds
Re: Using Skype to Bring Q&A Audio from Remote Location into Broadcast Audio
on Mar 5, 2013 at 10:41:52 pm

I think you are getting bogged down with complexity, any communications system works on send and received principle, you just need to split them apart.

Telephone hybrids feed a signal 'in' instead of the mic and 'out' instead of the earpiece.

Mobile phones will work as a send / receive with a split cable.

A computer should work the same just think about a headset used sometimes with Skype, you just need to feed a mix-minus signal into the 'mic in' and your return should come out the 'earphone out' (you just need to get the signal levels right and block off any rouge DC on the mic input).


Return to posts index

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
© 2017 CreativeCOW.net All Rights Reserved
[TOP]