Sound Performance Lab 9737 инструкция обслуживания

Manual Digital T ape Saturation Proc essor Machine Head Model 9737[...]

SOUND PERFORMANCE LAB by Her mann Gier V ersion 1.3 – 1 / 1999 T he inf ormation in t his document has been caref ully v erif ied and is assumed t o be c orrect. How ever Sound P erf ormance La boratory (SPL) reserv es t he right to modify t he product described in t his manual at any time . Changes wit hout notice . T his document is t he proper[...]

3 Machine Head © SPL electronics GmbH, Stand 10/97 Contents Dear cust omer , T hank y ou f or the c onfidence y ou hav e shown tow ards SPL electronics GmbH by purc hasing t he SPL M ACHINE H EAD . Y ou hav e decided t o use a t ool of high perf ormance w hic h sets you in t he position to ha v e f ast er success and a bett er sound quality in you[...]

4 Machine Head Machine Head Machine Head © SPL electronics GmbH, Stand 11/96 T he M ACHINE H EAD is a creativ e sound and d ynamics processor wit hin SPL´s Digital-R ed series . Concept : T he algorit hm used b y M ACHINE H EAD c omput es aut hentic tape saturation ef f ects , hit herto unav ailable in t he digital domain. T he subjectiv e sonic [...]

5 Machine Head Operation Safety Indicators and meters: M ACHINE H EAD is equipped wit h PPM dis pla y s f or input and output lev els . T he first LED of eac h input and output meter is a signal (S IG .) LED w hic h illuminates w hen a c ompatible digital data s tream is present at t he inputs . The LEDs are a f ir st indi- cator t o c hec k the da[...]

6 Machine Head Connections Bef ore c onnecting t he M ACHINE H EAD switc h t he pow er of f at all c onnected units . T he rear panel provides AES/EBU- and S/P-DIF-inputs and outputs . Any additional c hannel, status and user -bits are passed t hrough unaltered, and t he outputs can be used at the same time if required. T he M ACHINE H EAD operat e[...]

7 Machine Head Quick Start Analogue Tape Recording Signal Flow Magnetic Tape: Hysteresis Curve Record Head Erase Head Playback Head Input High frequency Bias Current Record Equaliser Playback Equaliser Output All c ontrols are in t he st art-of f positions: I NPUT G AIN 0, D RIVE 0, HF-A DJUS T 0, O UTPUT G AIN 0, T APE S PEED 15 1. Press A CTIVE .[...]

8 Machine Head Rela y hard-bypass for AES/EBU input and output Setting the r ecording level of the ‘virtual ta pe machine ’ Control Elements T he A CTIVE f unction switc hes t he M ACHINE H EAD on or of f . T he illuminated LED indicat es t hat t he processing has been activat ed. T he softw are b ypass also c ompensat es f or the 5ms time dela[...]

9 Machine Head Practical values f or the D RIVE are 3 to 8. T he par ag raph besides off ers some inf ormation on internal signal level manag ement. Abo ve: original signal Belo w: processed signal sho wing increased loudness Both signals ar e normalized to 0 dBFs. Adjusting t he high frequency damping eff ects T he higher t he D RIVE the more int [...]

10 Machine Head O UTPUT G AIN varies t he output level of t he digit al data s tream. It is varia ble betw een -12 dB and +12 dB in 0.1 dB steps . T he adjus ted O UTPUT G AIN value is shown in t he L C-dis pla y (see 7) and in t he O UTPUT PPM meter (see 8). In practice you will st art wit h t he OUTPUT G AIN set to 0 dB . In case you ha v e used [...]

11 Machine Head S t oring a pr eset: Depress S T ORE f or1 sec ., LED flashes; use U P /D OWN t o select preset no .; depress S T ORE ag ain, LED goes out, preset is st ored A pplying a pr eset: Depress A PPL Y f or1 sec., LED flashes; use U P /D OWN t o select preset no .; depress A PPL Y ag ain, LED goes out, preset is a pplied Operation safety: [...]

12 Machine Head Depressing S T ORE and A PPL Y simultanouesl y f or about one sec ond gets you int o a hard w are dialogue , called I NFO . T he L C- dis pla y shows st atus inf or mations of t he digit al data s tream. Wi t h U P /D OWN you will jump from one page to t he ne xt or previous . If a selection is provided use A PPL Y to select. 1. Sof[...]

13 Machine Head Press A PPL Y (if S/P-DIF is detected): S/P-DIF wit h w ordc loc k detect ed or : S/P-DIF input wit hout w ordc l oc k is detected 3. Dis pla ying t he det ected sample frequenc y: T he S AMPLE F REQUENCY will be det ected aut omaticall y . T he dis play eit her shows 44,1 kHz, 48 kHz or 32 kHz. 4. Dis pla ying t he A udio-Error f l[...]

14 Machine Head 9. Dis pla ying t he Emphasis f lag: N O = no emphasis; Y ES = wit h emphasis 10. Selecting a serial port: RS-232 interf ace f or updat e-download from PCs or (press A PPL Y ): RS-422 interf ace f or updat e-download from MACs . 11. Selecting a MIDI c hannel: Depress A PPL Y to step from MIDI CHANNEL 01 up t o MIDI CHANNEL 16. In or[...]

15 Machine Head Specifications ( 1 ) AES/EBU is defined for levels from 2 V to 7 V Measurements AES/EBU : 4,4 V with load ( 2 ) S/P -DIF is defined for levels from 200 mV to 700 mV Measurements S/P -DIF : 500 mV with load Subject to change without notice. Input/Output Sample rate frequency , autom. 32-48kHz AES/EBU , twisted pair (1) AES 3 AES/EBU [...]

16 Machine Head SPL electronics GmbH (hereafter called SPL) products are w arranted onl y in t he country w here purc hased, through t he aut horized SPL dis tributor in t hat country , against def ects in material or w orkmanship . T he s pecif ic period of t his limited w arranty shall be that w hic h is described to t he original retail purc has[...]