Soundfield Surround Zone Plug-In

Oct 3, 2003 12:00 PM, Editors


Education Guide

Mix is gearing up to present its longstanding annual Audio Education Guide in its November 2014 issue. Want to have your school listed in the directory, or do you need to update your current directory listing? Add an image, program description, or a logo to your listing! Get your school in the Mix Education Guide 2014.

Surround Zone is a new plug-in for SADiE Series 5 system that decodes and processes the discrete, 4-channel B-Format audio output from SoundField's MKV, ST250 and SPS422B surround microphone systems.

Prior to Surround Zone, only the SoundField MKV preamp/processor or the SoundField SP451 Surround Sound Processor units could be used to “remix” into mono, stereo, M/S, 5.1, 6.1, 7.1 (or any future surround format) a recording made using B-Format stems.

Both the SoundField MKV and SPS422B microphone systems use four matched-condenser capsules arranged in a phase coherent, tetrahedral or equilateral triangle array. These capsules, along with the preamp/processor, deliver a 3-D representation of acoustical events from a single point in space, which is conveyed over four audio channels called B-Format. The four channels are X (front to back), Y (left to right), Z (up and down) and W (absolute pressure, like an omni-directional mic). B-Format requires that X/Y/Z/W all must originate from a central point to be phase-accurate. Once in B-Format, all output variations (mono, stereo, mid/side, 5.1, 6.1, 7.1) are derived using the SoundField processor or the Surround Zone plug-in running in SADiE Series 5.

With the software's intuitive graphical interface, mixers can now “sculpt” the actual sonic size by manipulating the four B-Format components in a myriad ways. For example, in film sound mixing, the apparent location of recorded sound effects can be “placed” anywhere in a 3-D space to track or follow onscreen action. Using Surround Zone, this is done by virtually "steering" the microphone's position and controlling the mix of direct sound to ambience in a very precise and repeatable way.

There is the Rotate control for 360° rotation; Tilt adjusts the microphone's vertical attack angle by +/-45°, and Zoom moves the mic forward or backward, nearer or farther from the source. Surround Zone offers a choice of three different 5.1 arrays, each with their polar pattern graphically depicted on individual pages. For 5.1 and 6.1 and 7.1 arrays, there are independent level controls with bargraph meters to adjust the width of both the front and rear pairs, as well as the level of the phase-coherent LFE channels.

The software also provides simultaneous stereo outputs alongside the surround signal with full control over the polar pattern and stereo width. A variable highpass filter from 20 Hz up to 250 Hz and a mid/side-encoded output are also available.

For more, visit or visit Booth #854. For more new products, visit

Acceptable Use Policy
blog comments powered by Disqus

Mix Books

Modern Recording and Mixing

This 2-DVD set will show you how the best in the music industry set up a studio to make world-class records. Regardless of what gear you are using, the information you'll find here will allow you to take advantage of decades of expert knowledge. Order now $39.95

Mastering Cubase 4

Electronic Musician magazine and Thomson Course Technology PTR have joined forces again to create the second volume in their Personal Studio Series, Mastering Steinberg's Cubase(tm). Edited and produced by the staff of Electronic Musician, this special issue is not only a must-read for users of Cubase(tm) software, but it also delivers essential information for anyone recording/producing music in a personal-studio. Order now $12.95



Delivered straight to your inbox every other week, MixLine takes you straight into the studio, with new product announcements, industry news, upcoming events, recent recording/post projects and much more. Click here to read the latest edition; sign up here.

MixLine Live

Delivered straight to your inbox every other week, MixLine Live takes you on the road with today's hottest tours, new sound reinforcement professional products, recent installs, industry news and much more. Click here to read the latest edition; sign up here.

[an error occurred while processing this directive]

The Wire, a virtual press conference offering postings of the latest gear and music news, direct from the source. Visit the The Wire for the latest press postings.