Video for Channel Tools and Mid-Side Processing

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gswitz
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2013/03/09 07:09:12 (permalink)

Video for Channel Tools and Mid-Side Processing

http://www.youtube.com/watch?v=LVQ1SwSJ3YA&feature=youtu.be
 
I watched FBB's video on Sonar FX which I thought was great, BTW, but at the end he glossed over the mid-side processing feature of Channel Tools which surprised me. Maybe not, since I'm not really sure if anyone uses it much in real life anymore, but I spent some time learning to use it so I made a quick video that might help some along the path to a better understanding of the objective of it and why it's included.
 
If I got things wrong, please, correct me.
 
Thanks!

StudioCat > I use Windows 10 and Sonar Platinum. I have a touch screen.
I make some videos. This one shows how to do a physical loopback on the RME UCX to get many more equalizer nodes.
#1

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    The Maillard Reaction
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    Re:Video for Channel Tools and Mid-Side Processing 2013/03/09 08:00:52 (permalink)


    You seem to be using a specialized approach to M/S technique which is, for lack of a better word "non-traditional" and so I think it might be fair to say that here is nothing that you can do "wrong".

    I would comment that the video left me with uncertainty regarding what the goal of your M/S patch-routing was.

    The idea that you can swap between mono an stereo might benefit from some context of how you will use this in practice.

    I'm imagining that you have some ideas that may not have been included in the video and I think it might be beneficial to viewers if we learned of that as well.

    Thanks for sharing.

    best regards,
    mike


    #2
    FastBikerBoy
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    Re:Video for Channel Tools and Mid-Side Processing 2013/03/09 08:13:34 (permalink)
    Hi there.  Thanks for the props.

    There are two videos in the FX video on channel tools. The first is a general overview and then the second (4:33:50) focuses on using it for mid side processing. I didn't think I'd missed much out in it, although I didn't actually process either channel separately, just demonstrated how to separate them with a couple of suggestions for why you may want to do that.

    Anything in particular you thought I skipped? It's always helpful to get some feedback for future videos.
    #3
    gswitz
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    Re:Video for Channel Tools and Mid-Side Processing 2013/03/09 09:16:47 (permalink)
    So, I had a lot of trouble making the video. It wasn't recording the sound from the interface until I hit the loopback button on the interface. So, I recorded it over and over and in the final left out a fair bit of things I had wanted to say.

    Largely, I didn't have much interest in mid-side processing until I got my UCX interface which supports mid-side processing and then I started learning about it. It turns out I have one of those microphones that records out of front and back while using phase cancellation to cancel out sound from the sides (perfect for the reverb mic in a mid-side setup).

    I really don't have a need to do radio broadcasts where I don't know if the audience is listening in stereo or mono, which I believe was the original reason for making mid-side recordings.

    Really, it seems to me that the day of mid-side usefulness has passed. I mix everything in stereo and don't ever listen to my mixes in mono to see what they sound like.

    Most mid-side examples I have seen focus on how to set up the microphones to capture the source on one track and the verb on another.

    So, in my video, I wanted to just pretend we had captured the verb on one and the source on another, then process it using the mid-side button on the channel tools to show how as you flip if from stereo to mono the reverb cancels.

    it strikes me that this is exactly the purpose of mid-side processing. The fact that you can use a pair of microphones to capture a live recording with the real life reverb and achieve the same thing for the purposes of a radio broadcast where listeners will be both mono and stereo.

    My demo was only to show that the button pans one copy of the verb channel far right and one far left where the two are out of phase so when you listen in mono they cancel.

    I think that this is all the button does. Do you agree? The purpose is for enabling recordings to sound good in mono as well as stereo where a large percentage of the listeners listen in mono.

    StudioCat > I use Windows 10 and Sonar Platinum. I have a touch screen.
    I make some videos. This one shows how to do a physical loopback on the RME UCX to get many more equalizer nodes.
    #4
    The Maillard Reaction
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    Re:Video for Channel Tools and Mid-Side Processing 2013/03/09 09:21:12 (permalink)


    I like where you are going with this.

    Nice.


    best regards,
    mike


    #5
    gswitz
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    Re:Video for Channel Tools and Mid-Side Processing 2013/03/09 09:22:40 (permalink)
    FBB, so, in your posts and in your video you seemed to think that mid-side processing actually means processing the sound for the mid and side channels differently, which is valid in some ways.

    Mid-Side is used to describe a particular technique as well for making radio broadcasts where you didn't know if the audience might be listening in mono or stereo. So, you make a recording with 2 microphones, one designed to capture the reverb and one to capture the source recording. You pan the source center and route the reverb channel to the far left and far right and phase invert. that way, if you are listening in mono, the reverb completely cancels out. That's what the mid-side button does in the channel tools.

    I don't have any use for it personally, but I wanted to try to show what the button does. This must be used in an ongoing manner by professionals because it's built in to my RME UCX interface so I don't have to manually route the channels. It's not that hard to do, if you wanted to do it manually. If you want to do it at the interface level, it gets a little trickier.

    I was only trying to demo that button. (which I never even showed in the video lol)

    StudioCat > I use Windows 10 and Sonar Platinum. I have a touch screen.
    I make some videos. This one shows how to do a physical loopback on the RME UCX to get many more equalizer nodes.
    #6
    FastBikerBoy
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    Re:Video for Channel Tools and Mid-Side Processing 2013/03/09 09:54:57 (permalink)
    Yes - Mid-side processing only. I realise that there is the mid-side recording technique and I thought I mentioned it but said it was beyond the scope of that particular video. It was purely a demonstration on how to use channel tools to split a stereo signal into mid and side channels for separate processing of those channels.

    I have enough problems keeping video length down without going off on tangents.
    #7
    gswitz
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    Re:Video for Channel Tools and Mid-Side Processing 2013/03/09 19:15:11 (permalink)
    Totally agree, FBB. I wasn't saying you should have included it. I wasn't taking issue. I just wanted to try my hand at one of my own video that demonstrated it. Please don't think I was critical. I'm so not. I was only motivated to do it by crossing that part of your video in which you did say that it wasn't in scope. (This means I watched the whole video, btw. :-)

    Best,

    Geoff

    StudioCat > I use Windows 10 and Sonar Platinum. I have a touch screen.
    I make some videos. This one shows how to do a physical loopback on the RME UCX to get many more equalizer nodes.
    #8
    FastBikerBoy
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    Re:Video for Channel Tools and Mid-Side Processing 2013/03/10 03:05:26 (permalink)
    Hi Geoff

    I realise you weren't being critical (although having paid for something you've every right to be if you want) I was just wondering whether there was anything I could have done to make it better (or clearer).

    Every time I start to plan a video my first thought process is how can I explain the subject clearly and concisely without getting bogged down in side issues. As I'm sure you appreciate from producing your own video it's easy to get side tracked on a subject and end up skipping over the main subject rather defeating the object.

    It's also rather easy on some subjects to start confusing more than explaining. I had to have a couple of goes at explaining the compressor attack/release/threshold relationship without it sounding like total nonsense (I hope)

    I appreciate your support and always welcome some honest feed back which I can take on board as I move forward.

    Thanks
    #9
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