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Popular Electronics Jan 1975
HOW TO "READ" FM TUNER SPECIF CATIONS ectronlcs WORLD'S LARGEST-SELL/NG ELECTRONICS MAGAZINE JANUARY 1975/75¢ PROJECT BREAKTHROUGH I World's First Minicomputer Kit to Ri,al Commercial Models.•. "AlTAIR 8800'4t SAVE OVER $1000 ALTAIR eeoo --__ -, ......W I ~ - "m •••.-:: ••M a n: •~ •, mrn : ; ~ : l l ! ! - - d m ~ m ~ ~ U U B U _.,U u 0 U M tt , .- . ' .. .. I .• ' ' .' ' I ' ' ' .. ' I I ' . I ' f t . > f ti 14 ll ti ll 1• t I f • I 4 J t 1 I .. " ' ... - =. F='\. ~~ ; ALSO IM THIS ISSUE= • An Under-$90 Scientific Calculator Project • CC D's-TV Camera Tube Successor? • Thyristor-Controlled Photoflashers TEST REPORTS: Technics 200 Speaker System Pioneer RT-1011 Open-Reel Recorder Tram Diamond-40 CB AM Transceiver Edmund Scientific "Kirlian" Photo Kit Hewlett-Packard 5381 Frequency Counter 18 101 switched turnover bass and treble controls for more precise tonal compensation tor room acoustics and other program source characteristlce. In thetr respective price rangea, these are unquestionably the finest values in stereo receivers the.world has ever known. Audition their uniqueness at your Pioneerdealer. $<-1"010 -$699.95; SX-939-$599.95. SX-838 - $499.95. Prices Include walnut cabinets. Master control •.,.... capablllty Also new and more Pioneer's engtneers have surpassed moderately priced. themselves wlh a combination of control features never before found Pioneer's most complete and finest In a single reoeiV&r. All !hree units line of receivers ever, presents lncfude: puatrbutton functkm selection equally outstanding values starting at with illuminated readotltB on the $239.95. Shown here are the SX--535 uttra wide tuning dial, FM and audio -$299.95, SX-636 - $349.95, SX-737 2 2 2 muting, loudness contour, hi/low - $399.95. -
Audio Measurement Handbook
AUDIO MEASUREMENT HANDBOOK Bob Metzler Audio Precision, Inc. Copyright © 1993 Audio Precision. All rights reserved. Second edition for PDF, January, 2005. Audio Precision document number 0058.0003 r1 No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without permission in writing from the publisher. Published by: AUDIO PRECISION 5750 SW Arctic Drive Beaverton, Oregon 97005 U.S.A. Telephone: (503) 627-0832 U.S. Toll-free telephone: (800) 231-7350 FAX: (503) 641-8906 Web site: audioprecision.com Printed in the United States of America V0127090352 ABOUT THIS BOOK The AUDIO MEASUREMENT HANDBOOK is intended as practical, hands-on assistance for workers in all phases of the audio field. Its treatment of topics does not involve mathematics beyond simple algebra. Although pub- lished by Audio Precision, the measurement techniques described generally are not specific to Audio Precision instruments, but apply to any audio testing equipment. The first section describes basic tools and techniques and includes guides to aid in the selection of appropriate audio test instruments. The second section discusses the common environments for audio testing. The third sec- tion applies these techniques to various commonly-used types of audio equip- ment and describes the typical ranges of performance to expect in that equip- ment. Section Four is a glossary of specific audio terminology and major speci- fications used in the audio measurement field. ABOUT THE COVER The classic audio test instruments on the cover are from the “museum” at Audio Precision. -
186030-201106231131190.Pdf
CONTENT COMPREHENSIVE FORENSIC AUDIO ANALYSIS IKAR Lab 3 Tasks solved with IKAR Lab 3 SIS 4 EdiTracker 7 Sound Cleaner 9 Caesar 10 STC - H246 11 Equipping the Modern Audio Forensic Laboratory 12 AUTOMATED VOICE DATABASES AND OPERATIVE SPEAKER SEARCH Methods of biometric features extraction and comparison 15 Voice Net 18 National voice search and information systems 22 Trawl X 24 TRAINING, THEORETICAL AND PRACTICAL SUPPORT Training courses and methodologies 27 AUDIO FORENSIC EXAMINATION AND SPEECH ENHANCEMENT Audio Forensic experience and range of tasks 29 COMPANY OVERVIEW Speech Technology Center (STC) is the world’s leading manufacturer of Audio Forensic Products. STC employs 250 staff with more than 10% having a PhD, 5 audio forensic experts with more than 5 years of practical experience. STC Audio Forensic Achievements include: 2001-2002 Submarine “Kursk” tapes investigation, restoration of more than 120 hours of information. 2003 participation in the investigation of the terrorist phone recordings at the Moscow Trade Center. Over 100 identification cases for different languages. Forensic Audio examinations for USA, Great Britain, Belgium, India, Columbia, Philippines and others. STC experts are members of Scientific Council of the Federal Forensic Expert Center of Russia, Russian Federation Justice Department Expert Group, Audio Engineering Society (AES), International Society of Air Safety Investigators (ISASI), International Speech Communication Association (ISCA), Institute of Electrical and Electronics Engineers (IEEE). Conferences and Exhibitions European Network of Forensic Science Institutes Expert Working Group Forensic Speech and Audio Analysis (ENFSI FSAAWG), International Association for Forensic Phonetics and Acoustics (IAFPA), Intelligence Support Systems (ISS), Audio Engineering Society (AES), CeBIT, SpeechTek, Milipol, Interspeech, DSA, NATIA, Safety&Security Asia. -
HÓ*Aspeáfrumañciyzr'works 8
1978 STEREO FM TUNER BUYING DIRTORY 't" WORLD'S LARGEST- SELLIVG ELECTRONICS IvIAOAZINE ".: JÁNUARY4978/$.1 Build "CHARGE!" -a 12-V DC Electronic Bugler HÓ*aSpeáfrumAñciyzr'Works 8 1,1 . - `°- ` Y m ," a . R,Y The Direct-Disc Revoluflon Exploring CorflOyferComputer Bús fines' + Read/\I pite Memory- Experiments +Audis Lóudness= Controls t Lou Gamer's Annual.fiectron,csPredIcQns °i . lwmzl. El.zt'rao"r,3 . ,,. A `raundúp of latest micro- processor-based video and ronvideo electronnc games sweeping the'nation. s.. 0 TESTED THIS ISSUE: "' ti_ 'A,rAPIe -. is411 jr Yamaha Model 2020 - 8 AM/Stereo` FM- Receiver y , Rr ¡ Ñ Optonica Model- RT-3535. I I ly'~ Stereo Cassette Deck o dbx Model 128 Dynamic Range Enhancer E.F Johnson. Viking 4360 CB C Mobile Transceiver 9etailers: Notice of display -allowance plan AM is within last three pages. c _ AmericanRadioHistory.Com The Cobra 50XLR CB has 'it a_l. Instnllatión Kit ma-{es them the AM/FM Stereo. Cassétte: And easiest in -dash racios to install. And CB. M drip compact unit. All s óúr Nationwide network of Author- engineered to bring you the same ized Service Centers makes them loud and clear sound Cobra is theeasiest to service. famous for. .. _ There are four Cobra in -dash The remote mike houses the` models -to choose from including channel selector, squelch control, AM/FM-/Stereo/8-track/CB: But no and channel,: indicator.. So all you matter which you choose you can need for talking CB is right there in be sure of getting the best sounding your hand. The cassette player, fea- radio going. -
Soundsation Catalog 2020
CATALOG 2020 PRO AUDIO & SHOW LIGHTING Head Offices & Warehouse FRENEXPORT SpA Via Enzo Ferrari, 10 - 62017 Porto Recanati (MC) - ITALY Tel: +39.071.75.95.011 | Fax: +39.071.75.95.099 Email contact [email protected] (general information) [email protected] (accounting) [email protected] (sales) [email protected] (tech support) Website www.frenexport.com Opening hours Offices: Mon-Fri 8.30-12.30 / 14.30 - 18.30 Warehouse & Logistics : Mon-Fri 8.30-12.00 / 14.00-17.00 España France Director de ventas Agents de vente Country Manager, Sur, Madrid y Canarias Est et Paris Guillermo Olivera Soto Yves Darmoise C/Las Terrazas de Altorreal, 17BJ-A - 30506 Molina de Segura 42 Rue du 1 Septembre - 68640 Muespach Móvil 686167702 | [email protected] Mobile 0607572695 | [email protected] Norte, Baleares Nord/Ouest Pol Bonet (Arpegi) Francois Voisin Mobile +34 640609799 | [email protected] 2 Clos des Vieux Chenes, Rue du Roz - 29440 Plouzevedé Tel: 0967259650 | Mobile 0671963072 [email protected] United Kingdom Grand Sud Sales Director Eric Daunis 15 Rue Thesee - 34970 Lattes MJB Distribution Ltd Mobile 0603183939 | [email protected] Matthew Bell Mobile 07976579764 | [email protected] PRO AUDIO & SHOW LIGHTING Catalog 2020 Index Pro Audio Speakers Cables ACTIVE SPEAKERS .................................................................................6 STAGE BOXES .....................................................................................124 PASSIVE SPEAKERS .............................................................................14