SPL 9319 инструкция обслуживания

Owner ´ s Manual SOUND PERFORMANCE LABORA TORY STEREO Models 9319, 9320 ® ®[...]

SOUND PERFORMANCE LABORATORY S TEREO V ITALIZER Owner´s Manual by Paul White and Hermann Gier Version 2.2/95 The information in this document has been carefully verified and is assumed to be correct. However Sound Performance Laboratory (SPL) reserves the right to modify the product described in this manual at any time. Changes without notice. Thi[...]

3 STEREO Contents F orw ord 3 Introduction 4 Operation saf ety 4 Connections 5 Applications S tudio 6 T ape - duplication 7 Broadcast 7 Sound reinf orcement 8 V ideo & film post production 8 First s teps 9 T he c ontrol elements of t he S TEREO V IT ALIZER 11 V IT ALIZER A CTIVE 11 P EAK 11 B ASS 11 M ID -H I T UNE 12 P ROCESS 13 H ARMONICS 14 [...]

4 STEREO T he S TEREO V IT ALIZER is an equalizer c oncept whic h mak es use of scientif ic psyc hoac oustic tec hnology to process audio signals . The unique c ombina- tion of dynamic equaliz er s , amplitude-c ontrolled phase c orrection and harmonic f iltering in t he S TEREO V IT ALIZER opens up a whole new lis tening dimension by adapting t he[...]

5 STEREO Bef ore connecting t he S TEREO V IT ALIZER switc h t he power of f at all c onnected units . T he S TEREO V IT ALIZER is availa ble in two v ersion up to autumn 1995: V er sion 1: unbalanced jac k version (mono-1 /4“ jac ks wired tip hot) V er sion 2: prof essional version wit h unbalanced (switc hing mono- 1 /4“jac ks wired tip hot) [...]

6 STEREO Applications: Studio A A p p p p l l i i c c a a t t i i o o n n 1 1 : : The S TEREO V ITALIZER inserted into the Master-Inserts of the console. A A p p p p l l i i c c a a t t i i o o n n 2 2 : : The S TEREO V ITALIZER inserted between Noise-Reduction and Recorder to improve archived recordings. 1 1 . . T he most obvious application of t [...]

7 STEREO A A p p p p l l i i c c a a t t i i o o n n 3 3 : : The S TEREO V ITALIZER inserted between Compressor und Recorder. In t he field of electronic music , the S TEREO V IT ALIZER can be used to add new range and dept h to samplers and synthesiz er s and also to f urther process exis ting ef f ects suc h as delay and rev erberation. Even budg[...]

8 STEREO In live perf ormance or in c lub installations , the S TEREO V IT ALIZER is a powerf ul ally in maint aining s peec h intelligibility under dif ficult c onditions . It is also of great benef it in syst ems designed to pla y recorded music because t he illusion of loudness can be maintained at lower absolut e SPLs. T his c ould be particula[...]

9 STEREO W hen setting up the S TEREO V IT ALIZER f or the f irst time , it is wise to approac h the c ontrols in a s pecif ic order to av oid conf usion and to ac hieve positive results right from t he start. Use a CD as source . Set-up positions: -B ASS to z ero (center position) - H ARMONICS to M IN (c ounter c l oc kwise) - M ID -H I T UNE to 3[...]

10 STEREO 5. A section wit hin the S TEREO V IT ALIZER with one of t he most decisive inf luences on the sound is P R OCESS control. If y ou continue to tur n the P ROCESS c ontrol up , more of the signal is added to t he B ASS and M ID -H I T UNE sections whils t dominant mid frequencies are reduced acc ording human hearing at t he same time . The[...]

11 STEREO The control elements of the S TEREO V ITALIZER ® T he V IT ALIZER A CTIVE f unction switc hes the S TEREO V IT ALIZER on or off . T he status LED indicat es that t he S TEREO V IT ALIZER has been activated. T he V IT ALIZER A CTIVE f unction is a relais-hard-bypass f unction. In the ev ent of a power f ailure the S TEREO V IT ALIZER is a[...]

12 STEREO F ig .1: T he dotted line shows frequency r esponses f or a soft Bass (S OFT )a t maximumP ROCESS and a M ID -H I T UNE of 3.5 kHz. T he solid line shows t he phase response , whic h alwa ys drifts onl y a f ew degr ees if the amplitude is increased. Fi g. 2 : T he dotted line shows frequency r esponses f or a hard Bass(T IGHT )a t maximu[...]

13 STEREO Control elements appropriate frequencies , thus c hanging the s pectral cont ent of t he original signal. T he S TEREO V IT ALIZER , how ever , relies on a more subtle met hod of amplitude-depending phase shifting . This does not inv olve altering t he s pectral c omposition of the signal but it does maint ain the subjectiv e impression o[...]

Fi g. 4 : T he dotted line shows frequency r esponses f or a soft Bass (S OFT ) at varying P ROCESS and a M ID -H I T UNE of 3.5 kHz. T he solid line shows t he phase responses , whic h alwa ys drift onl y a f ew degr ees if the P R OCESS inten- sity is increased. T he diagram shows v ery clearl y that t he mid attenua- tion gets s trong er as the [...]

15 STEREO Stereo Width 8 f ilter interv enes at l ow frequencies . If the M ID -H I T UNE f ilter is at 1 kHz, the H ARMONICS f ilter af f ects higher frequencies . T he c haracteristics of t he tw o f ilters theref ore complement eac h other in an ideal f ashion. T he I N switc h switc hes the S URROUND P R OCESSOR on or off . The s tatus-LED indi[...]

16 STEREO Specifications S TEREO V ITALIZER Rear Panel Version 1 (Model 9319, unbalanced jack-version, until autumn 1995) - unbalanced input & output stages (0 dB) - mono-1 /4inc h-jac ks - 2-wire power c ord - relais-hard-bypass Version 2 (Model 9320, unbal. jacks & bal. XLR-Version) - balanced (+6 dB) & unbalanced (0 dB) in pu t &[...]

17 STEREO SPL electronics GmbH (hereafter called SPL) products are warranted only in the country where purchased, through the authorized SPL distributor in that country, against defects in material or workmanship. The specific period of this limited warranty shall be that which is described to the original retail purchaser by the authorized SPL dea[...]