JULY/AUGUST $2.95 I the SOUND ENGINEERING MAGAZINE Serving
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I JULY/AUGUST $2.95 THE SOUND ENGINEERING MAGAZINE serving:recording, broadcast and sound contracting fields Featuring 2 to 8 trk—The Smaller Recording Studio Guides: Reverbs & Delays; Equalizers & Crossovers www.americanradiohistory.com Experience a tape transport ready for the balance of this millenium. After spending a few minutes with the production pressure is on, the A820 be- A820 you'll know you're in touch with to- comes a joy and a lifesaver. morrow. Here is everything you've ever The A820 also ushers in a new era of user dreamed of in a production/mastering ATR. programmability. In a matter of minutes, by And then some. selecting from a menu of more than a dozen For openers, note these features: Four tape operating features, you can tailor an A820 speeds. Reel sizes up to 14". Real time counter to meet any application. All primary and accurate to tenths of a second. Advanced secondary top panel buttons can be as- phase compensation in all audio circuits. And, signed to any desired function. You can of course, the massive chassis, rugged con- practically "redesign" your machine on a day- struction and precision Swiss manufacturing to-day basis! you'd naturally expect from Studer. The A820 line has been augmented by the And now for the unexpected. Inside the A820 addition of V2" two-track and center-track time you'll find the most comprehensive micropro- code versions. Also, interfaces for control by ex- cessor control systems ever put in an ATR - by ternal computers or/video editing systems are anybody. Multiple microprocessors govern all tape now available. motion parameters, switching functions, and au- Call or write today for more information on the dio alignment settings. These innovations not only new Studer A820. It can transport your facility into provide unprecedented operating flexibility, but the future, also explain the A820's uncannily smooth tape Studer Revox America, 1425 Elm Hiil Pike, Nashville. TN 37210 / (615) r-. n 254-5651/NewYork(212)255-4462/LosAngeles shuttling and remarkable _ ir^CI T; 7 I ^)( L w/rTTlVt (818) 780-4234/Chicago(312)526-1660/Dallas editing efficiency. When the ^3 I ULJkLI i LtijL iV (214) 943-2239 / San Francisco (415) 930-9866 Circle 10 on Reader Service Card www.americanradiohistory.com JULY/AUGUST 1986 VOLUME 20 NO.4 DIGITAL AUDIO Barry Blesser 2 TIKI RECORDING STUDIOS Sammy Caine 26 APPLYING THE REFLECTION FREE ZONE CONCEPT IN CONTROL ROOM DESIGN Neil A. Muncy 35 "THE BLACK ART" STEPS FORWARD Brooke Sheffield Comer 49 Editor/Publisher Larry Zide Associate Publisher Elaine Zide db TEST Managing Editor Len Feldman 29 Rita Wolcott VENTED LOUDSPEAKER ENCLOSURE DESIGN MADE EASY Technical Advisor Drew Daniels 40 John Eargle Technical Editor Sammy Caine itidic Contributing Editors Bruce Bartlett RECORDING TECHNIQUES Mark E. Battersby Bruce Bartlett 10 Brian Battles Barry Blesser 2 TO 8 TRK: COMPOSITION IN ACTION Susan Borey Stephen Cullo 14 Len Feldman ON TAXES Jesse Klapholz Mark E. Battersby 19 Graphics & Layout Karen Cohn A PROFILE OF THE PROFESSIONAL AUDIO STORE Rita Wolcott 21 AD VENTURES Brian Battles 24 ABOUT THE COVER • Featured on the cover this BUYER'S GUIDE: DELAYS & REVERBS; CROSS- 51 month, Tiki Studios master con- OVERS & EQUALIZERS trol. See the feature article in this issue. PEOPLE, PLACES, & HAPPENINGS 69 NEW PRODUCTS 71 ABOUT THE 2-8 TRK CLASSIFIED 74 COVER • Featured on the 2 to 8 trk cover db, the Sound Engineering Magazine (ISSN 0011-7145) is published Bi-monthly by Sagamore Publishing Company. this month is sporting events com- Inc. Entire contents copyright ® 1986 by Sagamore Publishing Co.. 1120 Old Country Road, Plainview. L.I., N Y. 11803 Telephone (516) 433 6530 db is published for those individuals and firms in professional audio-recording, poser/recordist Stephen Cullo's broadcast, audio-visual, sound reinforcement, consultants, video recording, film sound, etc Application should be recording studio. made on the subscription form in the rear of each issue Subscriptions are $ 15 00 per year ($28 00 per /ear outside U S Possessions, $16 00 per year Canada) in U S funds Single copies are $2.95 each Editorial Publishing and Sales Offices: 1120 Old Country Road, Plainview, New York 11803 Controlled circulation postage paid at Plainview, Two to eight trk cover photo by Michael Marzelli. NY 11803 and an additional mailing office www.americanradiohistory.com Barry Blesser Digital We're on A New Way Of Thinking COMPACT DIGITAL AUDIO CALL (416) 977-0512 86 McGill Street, Toronto, Ontario Canada MSB 1H2 Circle 13 on Reader Service Card ADOPTING NEW PARENTS higher quality. The audio engineer did • One of the favorite subjects of writ- have to learn new content. The noise ers in popular magazines and books is reduction equipment had certain arti- that of the future and changes. It is a facts which had to be understood. topic that offers an opportunity to Competetive brands had different speculate in a provocative manner properties and some were better for certain applications. The introduction REMOVES VOCALS FROM RECORDS! without being limited to any formal Our VOCAL ELIMINATOR can remove most or approach to the subject. Digital audio of this class of equipment did result in virtually all of a lead vocal from a standard stereo has certainly been a good example of a change and the mastering of that record and leave most of the background untouched! Record with your voice or perform live with the change, and it has generated a large change did require some efforts. Elec- backgrounds. Used in Professional Performance yet tronic digital editing, in contrast, connects easily to a home component stereo amount of speculation about what will system. Not an equalizer! We can prove it works over become of our industry. In this requires more than a mastering of new the phone. Write or call for a free brochure and demo month's column, I, too, will offer my content. It will result in a new way of insights. thinking. The first distinction to be made is the difference between changes which BIRTH PARENTS OF come from new content and those ENGINEERS which come from a new mode of exis- Audio engineering is a subset of the tence. The first type of change requires more general category of engineering. Before You Buy! •Time Delay • Compressor/Limiters the learning of new data, the latter The broader profession has a long • Reverberation • Expanders requires a new way of thinking. Clear- history. If we examine that history we • Crossovers • Spectrum Analyzers •Noise Reduction •Parametric EQ ly, one is more difficult than the other. discover that all engineering is the Don't have regrets about paying too much for a lesser product. In demos and comparisons, we'll The invention of noise reduction equip- outgrowth of physics! A physicist is show you why we're Better! Our Factory Direct ment which could be added to profes- someone who is trying to master an sales allow us to produce a Superior product and offer it to you at a Lower price. Call ori write for a sional tape recorders to improve the understanding of the physical world. free full length Demo Album and 24 page brochure. The content of the physical world is Write to; LT Sound, Dept. MR, PO Box 338 signal-to-noise ratio did not produce Stone Mountain, GA 30086 any new way of thinking. The method purely physical: electro-magnetic ra- in Georgia Call (404)4931258 of recording was essentially the same, diation, gases, liquids, solids, planets, TOLL FREE: 1-800-241-3005 - Ext. 6 A only the result was of a somewhat chemicals, etc. The dramatic success www.americanradiohistory.com In The Past We Had A Big Advantage Over The Competition. Now We've Got A Small One. Until UREl's 813 Time Align® Monitor entered the studio, speaker systems had become a "smear" on the industry A "time smear," in which high and low frequencies subtly assaulted the ear because they arrived out of sync. The results were general listener fatigue and unrealistic sound, particularly on lead instruments and vocals. The URE1813 solved the "time smear" problem with Time Alignment™, unify- ing sound into a single point source,This dramatic breakthrough, along with other major technical advances, soon established the 813 as the industry standard. Now UREI introduces less of a good thing: the 809 Time Align® Studio Moni- tor, The 809 delivers all the engineering depth of its big brother, but at a compact size and price that's ideal for small control rooms and near-field applications, UREl's 809 features a remarkable, all-new 300mn (12") coaxial driver that achieves a true one-point sound source, superior stereo imaging, and tight bass, it incorporates a unique titanium diaphragm compression driver that unleashes unequalled high frequency response. The 809 has exceptional power handling capabilities, high sound sensitivity, and low distortion. It accomplishes precise acoustic impedance matching and smooth out-of-band response with UREl's patented high-frequency horn with diffraction buffer. And its ferrite magnet structures assure the system's high sensi- tivity drivers will not degrade with time and use. UREl's Model 809 Time Align® Studio Monitor. Smaller package. Smaller price. Same impeccable "813" sound quality. See how it fits into your studio today. |BL Professional 8500 Balboa Boulevard Northridge.CA 91329 in Time Align® is a trademark of E M, Long Associates, Oakland, CA, Circle 14 on Reader Service Card www.americanradiohistory.com and gain in these understandings over change which came about through a learning of a large amount of new the last three centuries suggested that new way of thinking.