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4.4

CALIBRATION OF

THE

INPUT

m

Make

sure

the

analog outputs

are

calibrated

correctly

Locate the trimpotmeters

3247

and

3248

a Select analog input then apply an analog source of the required level

( f o r

0

dBFs

digital) to the

balanced inputs

(always

between

9 and 15

dBu, 1

kHz)

=

Connect a suitable

analog

dB

meter

to

the

analog

balanced

outputs

(L/R)

a Adjust

the

trimpotmeters so

that both outputs give the reading t h a t

corresponds

with the 0 dBFs level as it was

defined during the

calibration of the

outputs.

This

is

always

between

9

and 15 dBu.

Figure

4.2: Location

of trimpots.

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Содержание IS 5022 Mark II

Страница 1: ...N D ENHANCER 1 s 5022 p r o r e s s i o n a t w a r t ISP s Oscaaren O s a s s 1 O oor S 0 0 0 g 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Onoise Omme l o s e LZ L A A N Osten enn Q sraviat O m i c s i i i i i il ee ye 9090090099000000000000000 ...

Страница 2: ...ctions have been adhered to 9 Grounding or Polarization This appliance is equipped with a polarized alternating current line plug a plug hav ing one blade wider than the other This plug will fit into the power outlet in only one way This is a safety feature pr If you are unable to insert the plug fully into the outlet try reversing the plug If the plug should still fail to fit con tact your electr...

Страница 3: ...rights COPYRIGHT PHILIPS ELECTRONICS N V 1995 All rights are reserved Reproduction in whole or in part is prohibited without prior written consent of the copyrights owner Printed in the Netherlands Date of first release 11 94 The Sound Enhancer IS 5022 does not comply with the Serial Copy Management System SCMS Recording or copying is only authorised if there is no violation of copy right or other...

Страница 4: ...io frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense For CANADA This digital apparatus does not exceed the ClassA limits for radi...

Страница 5: ...IBRATION 14 4 1 STANDARD CALIBRATION 14 4 2 PREPARATION FOR CALIBRATION 14 4 3 CALIBRATION OFTHE OUTPUT 14 4 4 CALIBRATION OFTHE INPUT 15 5 OPERATION 1 SETTING TO worRK 17 2 AUDIO EFFECTS a7 2 1 COMBINATIONS OFEFFECTS 18 2 2 ACTIVATING THE EFFECTS 18 2 3 DE ACTIVATING THE EFFECTS 21 3 OVERLOAD CONDITIONS 22 3 1 GAIN CONTROL 22 3 2 ANALOG 22 3 3 DIGITAL 22 4 QUANTIZATION NOISE IMAGING 23 5 SUBCODE ...

Страница 6: ......

Страница 7: ...very easy to use and requires no special skills other than careful listening a Works in the digital domain which means that the functions and fea tures work precisely and do not introduce channel differences or audible noise ls transparent for subcodes see section 6 5 Can operate in a stand alone mode or in a studio environment Slave mode operation is possible via either word clock or AES EBU sync...

Страница 8: ...tion and control via dual LED bars For more details see section 6 4 3 ABOUT THIS MANUAL The Sound Enhancer is extremely versatile The various configurations possible input and output combined with the available audio effects are extensive Acomplete description of all potential configurations and applications is well beyond the scope of this manual Therefore some experimentation may be required for...

Страница 9: ...ns adapter corresponds with the local mains supply If any parts are damaged or missing or the mains adapter voltage is wrong report the details immediately to your supplier For ease of identification note the 12 digit code number on the under side of the Sound Enhancer and on the shipping carton Code number 9022 67502 2 XX X X coding for configuration voltage and mains fre quency 01 and 04 Europe ...

Страница 10: ... most LEDs in the LED bars and one of the input LEDs should be on If after making the power connections in the proper man ner no LEDs come on then it is likely that the Sound Enhancer has been damaged during shipping Note The mains adapter is fitted with a thermal overload protector which cannot be reset once triggered To avoid unwanted shut off suffi cient cooling must be provided for the mains a...

Страница 11: ...icators and connectors located on the front and back panels of the Sound Enhancer 7 This chapter describes the controls 1 FRONT PANEL S Y O L O A N N O D 2 Q 1 G3 GH o u u e y g a u b y y O 0 D 0 0 D 0 0 0 0 N 0 0 0 0 0 0 j e u u e y g yo ...

Страница 12: ...BU and SPDIF If no sync signal is received the LED will not come on Effect and input LEDs The effect LEDs F2 are SCRATCH NOISE STEREO ENHANCEMENT COM PRESS EXPAND BASS TREBLE SPATIAL muWhen an effect is not active the LED is off a When the LED flashes the setting can be adjusted a When the effect is active the LED is on Fader F2 When selected the fade time can be adjusted between 0 5 and 11 second...

Страница 13: ...t The selected input is indicated by either the DIGITAL F3 or ANALOG F4 LED being on In order to avoid acci dental switching to another input the button must be pressed for about a second before the switch is made m MAXT S F8 is a toggle action push button switch that improves TS transient suppression scratch suppression The scratch effect must be activated only then can TS be activated When TS is...

Страница 14: ...ound Enhancer is switched off while the EFFECT OFF control is active all settings and effects are lost when the Sound Enhancer is next switched on The next group of switches is used to select adjust and activate the effects SELECT F13 comprises two white push button switches that are used to sequentially step through the effects SCRATCH BASS NOISE TREBLE STEREO ENHANCEMENT SPATIAL COMPRESS EXPAND ...

Страница 15: ... V S N I V I A N O G Aldd N S H a M O d Rear panel S H O L O A N N O O 7 9 j e u B i s p a y a a u l j e u B i s p a y e a u u o u Z s s e w p l a l y s L L N O 41no 7 N I d NI 1 w a V N V 1 w a V N V p a y j o e u u o d jou J e u B i s p o y a a u l u o u Z s s e w P l a Y S L 1Lno NI n a a s a v ...

Страница 16: ...ced analog line in stereo signals mANALOG BALANCED UNBALANCED B5 is a two position slider switch used to select either the analog balanced B4 input or the unbalanced input B7 msANALOG BALANCED L OUT R OUT B6 are two XLR connectors for the output of balanced analog line out signals m ANALOG OUT IN B7 are four Cinch connectors for the input and out put of unbalanced analog line in and line out stere...

Страница 17: ...verter a digital digital the Sound Enhancer will act as aSample Rate Converter In these four modes of operation three different capabilities are provided by the Sound Enhancer Sample rate conversion Synchronization Pitch control varispeed These functions are implicit and cannot be disabled by the user refer to figure 6 1 Notes 1 Make sure the wiring pin assignment is in accordance with figure 3 2 ...

Страница 18: ... is 48 kHz Push button F11 switches the Sound Enhancer to 44 1 kHz If 44 1 kHz is selected the LED indicator in the push button will light up The Sound Enhancer will accept INPUT OUTPUT 15 50 4 kHz 44 1 kHz 17 54 kHz 48 kHz This range covers most applications Applicationies f Figure 4 1 Sample rate applications ...

Страница 19: ...D flashes When no word clock is present and also no digital input signal the Sound Enhancer uses its own internal clock The SYNC LED is then off The Sound Enhancer can be synchronized only for 48 kHz and 44 1 kHz The Synchronization modes of the Sound Enhancer are arranged in the following hierarchy I wordclock Il AES EBU or SPDIF lll internal clock no synchronization Note The SoundEnhancer is n o...

Страница 20: ...librated for analog input output signals between 9 and 15 dBu 4 2 PREPARATION FOR CALIBRATION 1 Switch the Sound Enhancer off if powered up 2 Make sure the pot meters on the front panel are fully turned anti clock wise that is unity gain 3 Remove cover use appropriate TORX screwdriver 4 Locate XLR PCB refer to figure 4 2 A digital source is required for calibration of the outputs which can be a CD...

Страница 21: ...uired level for 0 dBFs digital to the balanced inputs always between 9 and 15 dBu 1 kHz Connect a suitable analog dB meter to the analog balanced outputs L R a Adjust the trimpotmeters so that both outputs give the reading that corresponds with the 0 dBFs level as it was defined during the calibration of the outputs This is always between 9 and 15 dBu Figure 4 2 Location of trimpots ...

Страница 22: ......

Страница 23: ...on te SoundEnhancerwillnotopele Changingof the output sample rate duringoperation will n o t harm the SoundEnhancer howeverunwantednoiseor in some situations mal functionof the controlelectronicsmayoccur Incase ofasoftware hang up switch the unitoffandonagaintoreset 2 AuDIO EFFECTS Once the input s and output s have been connected for the required function see Chapter 4 any required effects can be...

Страница 24: ...not touch the ADJUST buttons for six seconds and the effect is activated This is indicated by the LED stopping flashing and remaining on The LED bar reverts to displaying the audio level 2 1 COMBINATIONS OFEFFECTS The Sound Enhancer is able to perform either m scratch and or noise filter and or stereo enhancement or m compress expand Bass treble spatial and fade time can be used with any of these ...

Страница 25: ...stylus force too low or high will give less than optimum results Similarly lateral pressure skating should also be equal Sometimes a recording has only one or two bad clicks In this case set the lowest optimum level but increase it during the period that contains the bad click s For noise filter the LED bar range is from about 6 kHz all LEDs on to about 16 kHz two LEDs on Refer to chapter 6 2 2 2 ...

Страница 26: ...on I loeowoxokexK e k o k o k o n o w o n e d K X Rekeokokokon X E X E C O D D O D B B O O O D C O O00 SB00000 C G 6 GFH I DEFAUL T STEREO I C O D O D D D D O N D V O O V O B O 0 O 0 0 0 0 0 0 0 0 BEGGS P E G E G A R G S BAR OC O R R eater MIN MONO I S P Q C O V D V D V D V O O D O 0 O 0 O 0 0 0 0 0 0 0 COG G EES i A M o n o k o w o v o w o n o k o v o k o k o n o n o k o n o n o n e s EEE A E e I...

Страница 27: ...ction and Q N see next section If none of the effects are active it is known as defeat mode Effects can be de activated as described below To de activate all the effects except Q N 1 1 Ensure no effect LEDs are flashing 2 Press the EFFECTS OFF button All the active effects will be de activated LED s off Where a number of effects are active and you want to de activate only one of them not O N 1 1 U...

Страница 28: ...s set between 0 dB and 5 dB This is indicated by the red 1 dB LED of the display coming on On account of the characteristics of the bass and treble control refer to fig 6 7 hard clipping may occur unless extra attenuation is applied The Sound Enhancer is fitted with an automatic anti clipping algorithm that attenuates the gain setting to avoid this undesirable situation The maxi m u m attenuation ...

Страница 29: ... Q N 1 If O N I is inadvertently left on it will not have any negative influence on the audio 5 SUBCODE HANDLING The sound Enhancer is transparent as far as the U channel information is concerned The Sound Enhancer complies with IEC 958 for the C channel information For detailed information on subcode handling refer to section 6 5 6 GENERAL RESET It is possible to execute a general reset of the So...

Страница 30: ......

Страница 31: ...5 Mains frequency 50 Hz or 60 Hz Consumption approx 25W MAINS ADAPTER Pin Assignment of DCconnector mini DIN 2 17 5 V Unloaded 2 17 5 V Unloaded 7 V Unloaded Inputs Digital AES EBU SPDIF complying with IEC 958 15 50 kHz sample rate Connector XLR Cinch Analog 1 Line in Connector Cinch L R RCA Analog 2 Balanced in Audio Connector XLR Outputs Digital AES EBU Connector XLR SPDIF complying with IEC 958...

Страница 32: ...e 9 dBu to 15 dBu Standard factory adjustment 15 dBu 0 5 dB at max level 0 dB digital full scale Output Impedance 48 Q Note The Sound Enhancer is delivered calibrated for an input sensitivity and output level of 15dBu Unbalanced Cinch RCA Input sensitivity 0 5 V rms for maximum level 0 dB dig 1 dBV for 0 dBFs 0 dBV 1 Vrms at unity gain 0 dB 2 Vrms 2 dB 2 5 Vrms maximum allowable Input Impedance 50...

Страница 33: ...out completeanalogpath input 1 dBV unitygain Unbalance Amplitude linearity S N ratio Dynamic range THD Noise Channel separation max 1 5 dB max 0 2 dB 20 Hz 20 kHz 97 dB A weighted 94 dB Bandwidth 20 kHz 94 dB 1 kHz 90 dB 1 kHz 100 dB 1 kHz Analog In input 1 dBV unity gain Unbalance Amplitude linearity S N ratio Dynamic range THD Noise Channel separation Analog Out Output voltage Unbalance Amplitud...

Страница 34: ...T OUTPUT SPOIF AES EBU DIGITAL IN SPDIF DIGITAL AES EBU DIGITAL OUT FIL TER CONVERTER AES EBU A D Converter AD MOD 79 D A Converter TDA 1547 DSP function PCF 5020D ADOC function CS8401 NOISE SHAPER function with dither ADIC function TDA 1373 SRC function TDA 1373 Figure 6 1 Sound Enhancer block diagram COM P R E S S O votume p e a k a Rounpinege SEARCH 2nd ORDER NOISE FIL TER STEREO SPATIAL EFFECT...

Страница 35: ...ugh the Sound Enhancer operates at 24 bits internally and the A D conversion is 20 bits this does n o t automatically imply 20 bit resolution refer to figure 6 3 Digital20 bit Digital 16 bitresolution noiseshaping Analog 16 bit resolution 4 Figure 6 3 Q N 1 effect on output resolution Scratch Suppression The sensitivity control setting allows an optimal adaption for the source material involved Be...

Страница 36: ...channel is avoided 2 Room wall reflections are added for instance left loudspeaker to left ear This creates some spaciousness 3 Room wall reflections are added for right loudspeakers to left ear and vice versa Compression Expansion The Sound Enhancer is fitted with a fixed set of 10 expansion and compression curves The curves are presented in figures 6 4 and 6 5 The normal stereo situation is pres...

Страница 37: ... B 3 zs 3 E S Y Figure 6 4 Compression curves Figure 6 5 Expansion curves ...

Страница 38: ...reo Spatial Stereo widens or narrows the sound stage in 2 x 5 steps The digitally executed antiphase crossover works without adding noise or distortion Default setting Normal Stereo Minimum setting Mono a Fader If the fade button is pressed either a fade in or fade out is trig gered The fade characteristic measured in dB is linear as a function of time between the start of the fade and 50 dB The f...

Страница 39: ...10 0k 20 0k 1 0k 100 0 20 0 Figure 6 7 Bass Treble Filter curves ...

Страница 40: ...nsumer application AES EBUand SPDIF the U channel bits are copied from the input to the output Thus the Sound Enhancer is in this respect transparent for the U channel 5 2 C CHANNEL CHANNEL STATUS The Sound Enhancer complies with IEC 958 for the codes for the C channel with the following exceptions 5 2 1 Consumer use Cinch RCA Digitalinput SPDIF All bits are copied from the input to the output exc...

Страница 41: ...nce n o t all audio equipment complies with the IEC958 To summarize the Sound Enchancer will set Bit 5 to 0 in case of external synchronization In case synchronization is n o t successful the value of Bit 5 will be set to 1 The default setting of Bit 5 is 0 also if synchtonization is n o t applicable 3 Also the treatment of Bit 2 in SPDIF copy protect warrants extra attention Bit 2 is always set t...

Страница 42: ...Printed in The Netherlands 3104 125 2167 1 ...

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