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1 - Practical Ambisonics using Reaper and WigWare Lecture - HD
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- čas přidán 31. 10. 2012
- This is a short 'guest lecture' type slot I do at the University of Derby with 2nd year Music Technology and Production students where I introduce them to the concepts of Ambisonics, and then give them a demo on how to produce content in Reaper using my Ambisonics Plug-ins (WigWare). This is the PowerPoint type lecture part of the show!
Get the plugins from www.brucewiggins.co.uk
Get Reaper from www.reaper.fm
Yes I was being very cheeky. It was a bloody interesting talk. Cheers. I'm off to go download those plugins and see if I have enough nous to get myself into trouble.
Hey I am a student at Queen Mary in London and I thin video is bloodie great! Thanks
Okay, I'm excited. I have to try this...
It was a live lecture recorded using a table mic (I walk around!).......I may get round to editing the audio one day ;-)
I have a quick question. Do you know of a way to render the output from the decoder in Reaper into Binaural?
Currently I am using Soundflower to interface the 6 channel hexagonal output of the decoder in Reaper with a patch in MAX and then sending the binaural output to logic to be recorded.
Its a kinda temperamental long winded way. I was wondering if you knew of a better way to approach?
Thanks
Hi Bruce,
Thanks for sharing these videos,
I have a question, what hardware do you use to get signal flow to so many speakers?
and where i may get it from?
Thanks
Brian
Are you asking what soundcard do I use? If so, we use a few at Derby. Currently we have Focusrite Rednet in all our rooms/studios so we can have many channels of audio routed to the speakers, but we can also route audio between rooms in real-time. Very useful indeed. However, any multi-channel sound card will do!
Thanks :-D
Thank you very much for these videos, complementing them with the ones on Vimeo by Trond Lossius you get a good intro to the Ambisonic process. I have one question that wasn't answered in your video. How does the decoder "know" the spacing between the speakers and I'm guessing it doesn't is there a guide to an appropriate loudspeaker arrangement?
Chris Weaver decoders have to be created for each speaker arrangement you want to listen over......
When you say "decoder" you mean in addition to the plugin, some kind of configuration file describing the positions of the loudspeaker (angles & distance from each other).
No, the decoder is the plug-in. I hard code the speaker positions (well, angles) into it. The speaker distance can be altered (all at once). I just make new plug-ins for new speaker configurations...
Last question. That means your plugin is only suitable for the environments that you've hard coded (presumably the studios at the University of Derby). If I use it the decoder doesn't have a clue about the speaker setup.
Chris Weaver you choose the decoder that matches your speaker array. 5.0,octagon,hexagon, square, cube etc.....
If I am attempting to calculate my velocity/energy vectors for any given setup and I use the equations you published in "Has Ambisonics Come of Age?", how are you getting the 360 degree plots, if the determining equations are bound by theta = the azimuthal angle of each speaker? Its kind of difficult to understand how you are getting values for rV and rE over 360 degrees when the formulas are only pertinent to discrete angles mandated by the loudspeaker locations. Specifically I am referencing figure 4 and equations 2 & 3. i.e. how do you arrive at a plot covering 360 degrees when you don't have loudspeakers over the entire 360 range?
You'll calculate one resulting angle and magnitude for each combination of speaker gains. The speaker gains will change depending on the input source location. Change the source location, get a different energy and velocity vector result.....
You'll calculate one resulting angle and magnitude for each combination of speaker gains. The speaker gains will change depending on the input source location. Change the source location, get a different energy and velocity vector result.....
You'll calculate one resulting angle and magnitude for each combination of speaker gains. The speaker gains will change depending on the input source location. Change the source location, get a different energy and velocity vector result.....
+Steven Crawford pretty sure the b format encoding equations are in there somewhere........ Can't remember exactly where off the top of my head..... Neither are in this video, though 😉
+Steven Crawford pretty sure the b format encoding equations are in there somewhere........ Can't remember exactly where off the top of my head..... Neither are in this video, though 😉
6:02 ...in a certain [sensual] way.
Spyros Deloglou ha...... I see what you mean!
/You/Your/
You speech needs to be very heavily compressed mate ;)