Visualisation Test


Below this should be a visualisation of 1st, 2nd and 3rd order Ambisonics (click the mouse to change order).  This is showing the velocity and energy vector analysis of a velocity vector optimised decoder, but you’ll still notice the energy vector magnitude improving with rising order.

White blob is the source (size equates to amplitude) and red blobs are the speakers (which go blue when they’re out of phase). The orange and green ‘blips’ are the energy and velocity vectors respectively. Buttons to start and stop the animation at underneath…


Play Controls :

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OSX and Mavericks Fixed Plug-ins

I’ve uploaded two plug-ins which should fully work with Mavericks (on a side note, the old plug-ins still work fine with Plogue Bidule, it’s just Audiomulch and Reaper that exhibit identical issues.)

A 1st, 2nd, 3rd and 4th order 5.0 ITU decoder is available and should demonstrate the fix (and I’ve made it available for PC too!)  Available on the WigWare page, or below!

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OSX Mavericks and WigWare

As has been reported around the interweb, OSX Mavericks update stops the GUIs from a number of VST plug-ins functioning correctly (they don’t update when they should).  The WigWare plug-ins are also affected by this issue.  I have developed a fix, and will try and update all the software when I get a chance.  In the mean-time, if there is a plug-in or two that you really need updating first, just let me know!

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Buxton to Derby Sponsored Bike Ride

On Friday 12th July I’ll be doing a sponsored bike ride from Buxton to Derby in aid of Dogs for the Disabled. As I did a couple of years ago, my progress can be tracked in real time on the page below, or instructions on how to keep tabs in google earth too! If you fancy sponsoring me, instructions are also on the page below :-) My public location won’t update much except for testing until the day!

http://tinyurl.com/whereswig

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Sounds In Space Programme Available

The programme for Sounds in Space is now available.  This is a FREE event and there are still places available, so if you want to attend see the details found on the Sounds in Space page.

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Sounds in Space 2013 – Call for Participation

After the success of the previous three Sounds in Space events help at the Markeaton Street Campus of the University of Derby, we’re hosting the event again….and it’s still free!

Sounds In Space 2013 PosterThe symposium concentrates on practical audio/audio-visual demonstrations and the transfer of knowledge through interactive presentations and Q & A sessions and will be of interest both to practitioners in the field and industry as well as the academic community interested in surround audio and it’s related fields.  To this end, the previous events have been a mixture of academic and practitioners in industry presenting, which aim to continue this year!

If you’re interested at presenting/demonstrating at the event, please email me at b.j.wiggins@derby.ac.uk by 5pm on Monday 27th May 2013. Abstracts should be around 150 words in length and submitted as a standard Word document.   Please also provide a 100 word personal summary (for potential public dissemination!) for all contributing personnel.   For more details, please look at the Sounds in Space 2013 Page, which also includes a link to the call for works and other details PDF (or you could just click >HERE<).

Any questions/comments?  Feel free to ask here!

If you interested in attending the event, it’s FREE, and light refreshment and lunch is also provided.  To register for a place (numbers are limited) please email Jessamie Self at j.m.self@derby.ac.uk 

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Celestial Dynamics Audio-Visual Installation – Stargazing Live 2013

If you’re lucky enough to be going to the Stargazing live event at University of Derby (see here and here) then you’ll also get the chance to experience Celestial Dynamics, a higher order Ambisonic and visual installation setup in the Markeaton Street building.  Developed by Michael Brown, and using the WigWare higher order Ambsionic plugins and source material from the Hubble Space Telescope and Voyager 2 recordings.  If you’re attending this free event, it’s running MS017 :-)  Some stills from the video are shown in this post, and the poster to be shown alongside the installation can be found at:

Ambisonic 3-D sound composition tools for artificial auditory-and-visual environments

F4 - Uranus Filter

F5 - Celestial Dynamics 04

F6 - Celestial Dynamics 10

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2nd and 3rd Order WigWare

I’ve currently got up to 4th order versions of my panners and decoders.  Attached to this post is a link to the 2nd and 3rd order Panners (encoders).  There are two versions of each order:

  • A 2D 2nd order version that outputs 5 channels of 2nd order Ambisonic goodness (W,X,Y,U & V)
  • A 3D version that outputs 9 channels (W,X,Y,Z,R,S,T,U & V)
  • A 2D 3rd order version that outputs 7 channels (W,X,Y,U,V,P & Q)
  • A 3D 3rd order version that outputs 16 channels (W,X,Y,Z,R,S,T,U,V,K,L,M,N,O,P & Q)
These panners use the Furse Malham weightings.  More info can be found here.

If NFC (near field compensation) is set to OFF then as the source is moved into the middle, the directional compenents are turned down (centre sources comes out of every speaker equally when decoded). If NFC is set to a distance, then the
distance parameter then controls the distance filtering which applies LF boost (proximity effect) as the source moves closer to the middle.

Download them by clicking
this link (2nd order PC)–>  WigWare 2nd Order Ambisonic Panners (PC)
Or this link (3rd order PC)–> WigWare 3rd Order Ambisonic Panners (PC)
Or this link (2nd order Mac)–> WigWare 2nd Order Ambisonic Panners (Mac)
Or this link (3rd order Mac)–> WigWare 3rd Order Ambisonic Panners (Mac)

Any questions, please post in the comments.  Decoders to follow….

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WigWare Ambisonic Plug-ins Update

I’ve updated the PC versions of my 1st order plugins to incorporate a number of bug fixes already present in the Mac versions.  I’ve also optimised the code a little, and improved the near field compensation and distance filtering to be, well, correct and glitch free (not very noticeable in 1st order….2nd order to come!)  Also, these are now compiled using Microsoft Visual Studio as Audacity didn’t like Borland Builder compiled versions……

WigWare Ambisonic Panners (PC)
WigWare Ambisonic Decoders (PC)
WigWare Ambisonic Reverb (PC)

Comments/bug reports and general feedback always welcome!

 

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Website Hacking Update

It’s taken some time, but as I’m getting a few hits on my website from people searching for information on the malware that was inserted onto my website, I thought I’d make what we’ve found out so far public.

As mentioned already, the malware most obviously installed on the website was reported as Trojan:JS/BlacoleRef.BG and Exploit:Java/CVE-2012-0507.AV.  After cleaning these javascript rogues off my site several times, they kept coming back (the excellent Securi Sitecheck Scanner is an invaluable tool, here!).  The rogue scripts are added to legitimately running javascript files and are picked up straight away by Google Chrome (which I use) and Microsoft Security Essentials (which I use at home).  It was the fact I use Chrome which alerted me to the problem in the first place.

So, how did the hackers get in?  It seems that the security breach was due to Parrallels Plesk Control Panel which the web server my site is hosted on uses as it’s web based interface.  I finally tracked down this information from this excellent website, and it’s an interesting read:

Unmask Parasites Blog

It seems that the Plesk vulnerability was compounded by the fact that the password list in plesk is stored in plain text!!!!!!  This meant that the hackers potentially had access to all the plesk passwords on the server (including ftp etc..)  So, unless all passwords on the server (which may well host multiple sites!) were reset, the hacker could get back in and read all the passwords again!  One interesting addition, is that we discovered extra scripts in the cgi-bin directory of websites on the server which seem to be similar to other distributed denial of service attack type scripts.

Anyway, now Plesk is patched and upgraded and all the passwords on the server have been reset, normal service should resume!

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