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5-bands FM digital audio processor

User’s manual

3 d e F eb r er o 3 2 5 4 (1 4 2 9)

Bu en os A ir es - A r g en t i n a

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Last revision: May 2011

Содержание 562dsp

Страница 1: ...s FM digital audio processor User s manual 3 de Febr ero 3254 1429 Buenos Aires Argentina Phone 54 11 4702 0090 e mail info solidynepro com fax 54 11 4702 2375 web www SolidynePRO com Last revision Ma...

Страница 2: ...P gina 2 procesador para radiodifusi n SOLIDYNE 562dsp...

Страница 3: ...TMENTS 22 4 4 1 PROGRAM NAME 22 4 4 2 EXPANDER AGC 22 4 4 2 1 AGC OUT GAIN 22 4 4 2 2 AGC attack time 22 4 4 2 3 AGC recovery time 23 4 4 2 4 Hold 23 4 4 2 5 Expander threshold 23 4 4 3 AUDIO EQ 23 4...

Страница 4: ...flat screws with flexible o rings rubber PVC etc The frontal panel is made of aluminum so you must take special care of don t to apply excessive force on the screws since it can cause deformation or...

Страница 5: ...l settings values are entered using a JOG Wheel Turn the JOG to select options and to change values Pressing briefly the JOG confirms an option Pressing and holding the JOG around one second go to the...

Страница 6: ...se the remote control of 562dsp can be implemented through a data channel of the link that allows sending RS 232 data 1 3 Understanding the main screen Next you will see an overview on the 562dsp main...

Страница 7: ...anslated in greater radiated energy improving the transmission reach in marginal areas For this the processor applies a complex procedure of compression on each audio band producing greater sensation...

Страница 8: ...Page 8 FM broadcast digital processor SOLIDYNE 562dsp EVOLUTION THIS PAGE INTENTIONALLY LEFT BLANK...

Страница 9: ...must stay between 5 C and 40 C Avoid direct solar ray incidence on the processor or proximity of heat sources The openings and grooves allow the circulation of forced air impelled by the internal coo...

Страница 10: ...mmutation takes place when grounding the MICstart input When this happens the processor exchanges the program and the access from the JOG wheel is blocked When the MICStart input is opened 562dsp retu...

Страница 11: ...Two female DB 9 connectors are required The following table shows the diagram of connection although only the connections emphasized in bold are needed The computer is used to transmit data to RDS cod...

Страница 12: ...l will show all active units connected to your LAN Each unit has a MAC address that is unique and fixed and an IP address that you can change freely Select the unit from the list and press the button...

Страница 13: ...d If you wish you can set a password to block modifications in your settings 2 8 2 Accessing from the LAN The client PC must have installed TCP IP protocol If there is a Firewall software or hardware...

Страница 14: ...ddress assigned by the Internet provider ISP The unit is connected in another LAN with shared Internet access In order to accede from an remote PC to the LAN you must configure the router of that LAN...

Страница 15: ...s modality the programs can be chosen automatically from the OnAir PC using the automation software Solidyne Audicom 7 This way you can use a specific processing for each musical style c Models 562dsp...

Страница 16: ...ted ONLY through AES 3 Also the analogical inputs can be connected as back up but they will be used only in case that the carrier of signal AES 3 interrupts In this case the equipment exchanges automa...

Страница 17: ...dulation 75 KHz deviation PRE EMPHASIS Allows to adjust the pre emphasis curve according to the regulations of your country I E Europe 50uS USA ASIA Latin American 75uS 3 2 2 1 Adjusting 100 of modula...

Страница 18: ...ly in the AGC Observe and compare the factory presets PASSWORD You can define a password to avoid the access of unauthorized personnel to the main menu to change the settings Once defined 562dsp will...

Страница 19: ...not produce high impact voices since it woks with low compression range But remember that you can use an special preset for the voices with higher processing 01 3D SPACE It s similar to the previous...

Страница 20: ...objective is to obtain basses with great height but without affect the attack of vital importance in these rhythms since many times the bass is who takes the cadence of the song This adjustment can be...

Страница 21: ...greater compression Respect to the gains the voices do not tolerate high multiband compression so if for music a strong adjustment is used for the voice the AGC output level will have to be located a...

Страница 22: ...character 4 4 2 EXPANDER AGC 4 4 2 1 AGC OUT GAIN The output level of the AGC is a CRITICAL ADJUSTMENT since it determines the level with the signal reaches the multiband compressors and therefore th...

Страница 23: ...ue is not congealed but that slips slowly towards 0 dB to avoid that it is hooked if the signal remains with low level slope 0 75 dB each 13 seconds 4 5 minutes from 15 dB On the other hand you can ad...

Страница 24: ...the time that takes the compressor in acting once the signal overpasses the threshold Slows attack times gives more impact to the sound but greater will be the action of the limiters This is because t...

Страница 25: ...er of instant attack which controls ALL the peaks that pass through the multi band compressors WB control allows you to define the recovery time of WB Limiter Vary fast recovery times 10 mS increase t...

Страница 26: ...ues are also part of the listening experience All of these elements are used to translate acoustical vibrations in the outer ear into nerve impulses and finally into a sensation or perception of sound...

Страница 27: ...avoids objectionable buildup of frequencies where the human ear has increased sensitivity in the L R channel This algorithm is also very effective over various listening locations not just restricted...

Страница 28: ...28 SOLIDYNE ORION 462 MKII THIS PAGE INTENTIONALLY LEFT BLANK...

Страница 29: ...ualRack can run on a PC directly connected to 562dsp in a terminal of a network or in a PC that accesses the processor via Internet The connection is described in 2 7 RS 232 Remote Control The accessi...

Страница 30: ...Page 30 SOLIDYNE 562dsp broadcast digital processor THIS PAGE INTENTIONALLY LEFT BLANK...

Страница 31: ...s are used by Orban Omnia Aphex etc The concept of psychoacoustic processing is simple in essence although of complex accomplishment It consists of analyzing the way in which the sound is perceived by...

Страница 32: ...N OF THE TRANSMITTER THAT EXCEEDS 0 05 COULD BE LISTENED BY THE AUDIENCE EVEN THROUGH RECEIVERS THAT HAVE VALUES OF DISTORSION 50 TIMES GREATER This of course is not a novelty for the conscious audio...

Страница 33: ...is known that by a particularity disposition of the vocal cords the sonorous emissions that these generate are asymmetric triangular pulses The three cavities that filter and shape these formants to o...

Страница 34: ...value That means it always expands within that range for any level of signal The curve of transference based on the input level is a straight line from there the linear name While the signal stays bel...

Страница 35: ...n the studies of Stevens ref 1 2 3 about the loudness of each band frequency and the studies of Zwicker ref 4 About its relation with the Critics Bands of the human ear The integration time of the ear...

Страница 36: ...components increased by the aural masking that the multiband processor allows to obtain In fact all the musical instruments as much as the synthesized ones have a high amount of harmonics superposed t...

Страница 37: ...on an FM transmitter indicate that when the transmitter is modulated by stereo MPX signal appears a new effect not present on the original audio signal This effect called MPX Interleaving also known...

Страница 38: ...Page 38 SOLIDYNE 562dsp broadcast digital processor THIS PAGE INTENTIONALLY LEFT BLANK...

Страница 39: ...nditions the audio output Hill must be 4dbm c Repeat for the other channel 7 1 3 FREQUENCY RESPONSE Input Audio generator at 1 KHz on both input channels the amplitude is varied throughout the test Ou...

Страница 40: ...maximum level at the audio output c At the right output you must obtain a crosstalk bigger that 72dB difference between the level measured at the point b and the reached in the point c d Repeat for t...

Страница 41: ...entage level of pilot tone will be Pilot Level 100 Ppp Xpp d Using the control P4 adjust Ppp to the desired value normally 9 to 11 is a good value Note If you have a Solidyne VA16 modulation monitor o...

Страница 42: ...ation calibration of the Belar set see Belar manual f Now connect the sine wave generator at the same frequency and level to the Right Channel pin JS3 g Measure at the Belar the residual level of the...

Страница 43: ...Attack Release time software controlled Gated Wide Band AGC Range 30 dB Attack Release time Threshold controlled from LCD screen Multiband Compressors DSP controlled Five Bands Crossover 24dB oct Max...

Страница 44: ...Audio Input Filtering 15 kHz active FDNR filter 5 poles elliptical Total Distortion 0 003 at 1 kHz Signal to Noise Ratio 95 dBA or better Ref 100 modulation Stereo Separation 75 dB at 400 Hz 65 dB 30...

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