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SOLIDYNE 462

dsp - broadcast digital processor

 

the  waveform.  But  it  does  not  mean  an 
"anesthesia"  to  the  ear,  to  avoid  perceiving  the 
distortions due to deficiencies in the quality of the 
electronic circuits of the processors.  

Considering    that    to    obtain    an    excellent 
processing  is  necessary,  at  the  moment,  to  use 
between  7  and  10  stages    of  processors,  the 
distortion  of  each  stage must be  smaller than 

0.01%.   Greater   distortion   values,   will   lead 
inexorably  to  a  degradation  of  the  sound  quality. 
You     must     remember     that     has     been 
demonstrated  (Journal  of  AES,  Vol.  29,4,p.243), 
that  is  possible  to  measure  distortions  of  0.05% 
through   a    common    loudspeaker    (distortion 
bigger    than    3%).    This  demonstrates  that  one 
distortion  do  not  mask  another  one.  A  practical 
rule is, then: 

ALL  DISTORTION INTRODUCED IN THE  AUDIO CHAIN  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 engineers around the World. Therefore, the 
line  of  SOLIDYNE  processors  has  distortion 
values smaller than 0,02%. 

 

Friendly interface 

462dsp has many of its automatically fit functions, 
under  control  of  the  program  of  audio.  But  there 
are  essential  controls  for  "ing  personalize  ng 
personalize” the sound of its radius, that are fit by 
the user.  

The unit has several programs fit in laboratory for 
an  optimal  performance  with  different  types  from 
sonorous  material.  These  programs  allow  you  to 
be on the air in immediate form.  

Soon, you can copy the program chosen to a user 
memory, and modify the adjustments to customize 
the sound. 

When  finalizing  the  adjustment,  assigns  a 
password  to  the  equipment  to  maintain  the 
configuration  unalterable.  Only  the  engineer  who 
has the password can alter the sound of the radio.  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Содержание 462dsp

Страница 1: ...ital 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 Marzo 2013...

Страница 2: ...P gina 2 procesador para radiodifusi n SOLIDYNE 462dsp...

Страница 3: ...19 4 4 1 PROGRAM NAME 20 4 4 2 EXPANDER AGC 20 4 4 2 1 AGC OUT GAIN 20 4 4 2 2 AGC attack time 20 4 4 2 3 AGC recovery time 20 4 4 2 4 Hold 21 4 4 3 MULTIBAND COMPRESSOR 21 4 4 3 1 Atack times 22 4 4...

Страница 4: ...crews 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 even br...

Страница 5: ...ngs 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 main m...

Страница 6: ...l of the link that allows sending RS 232 data 1 3 Understanding the main screen Next you will see an overview on the 462dsp main screen Later each processing stages and its settings screens are fully...

Страница 7: ...For this the processor applies a complex procedure of compression on each audio band producing greater sensation of loudness to the ear The size of each luminous bar indicates the compression degree a...

Страница 8: ...Page 8 broadcast digital processor SOLIDYNE 462dsp THIS PAGE HAS BEEN LEFT INTENSIONALLY EMPTY...

Страница 9: ...ence on the processor or proximity of heat sources The openings and grooves allow the circulation of air inside the unit These openings do not have to be blocked nor covered not to obstruct the refrig...

Страница 10: ...ector RCA type With consoles Solidyne 2300 series MICstart is connected directly to the Digisolid output of a microphone channel please refers to the manual of the console In other consoles the contro...

Страница 11: ...C connection For setup and control of RDS stage the 462 s RDS Data port must be connected to a computer using a standard COM RS 232 RDS Data PC 2 RxD 3 TxD 3 TxD 2 RxD 4 DTR 6 DSR 5 GND 5 GND 6 DSR 4...

Страница 12: ...Page 12 broadcast digital processor SOLIDYNE 462dsp...

Страница 13: ...ing a preset to the user memory recommended See 4 3 1 Copy programs 3 1 3 Modes of control The processor can be controlled of many ways a Can be manually controlled from the frontal panel b The progra...

Страница 14: ...a digital data link falls As signal AES 3 is regenerated in the receiver the digital streaming follows present but without content of audio channels muted Reestablishing the signal in Auto Search mode...

Страница 15: ...f the processor probably the indicators of modulation of needle type overpass the 100 This can be due to over impulses of the ballistics or to that it responds to values average of sine wave and the i...

Страница 16: ...password to explore the program list and change the program on air The password must have 3 characters Any combination of letters numbers and symbols can be used To enter a password go to field Passwo...

Страница 17: ...e BASS CLIP threshold to reinforce the bass punch This processing works very well with Jazz POP country and blues folklore and tango 02 MELODIC Here was prioritized the human voice over the musical su...

Страница 18: ...uashed by the compressor the attack acts only on the first beat and never more which is equivalent to have an attack time equal to zero The high bands also are something released to obtain brightness...

Страница 19: ...ault programs cannot be modified To make your customized adjustment look for that preset that more approaches to the sound that you are looking for your radio and copy it to a free user memory Soon mo...

Страница 20: ...ndicators show the compression degree applied by the multiband system Each band has its own indicator Usual values for the AGC output are between 6 to 12 dB TAKE IN MIND How much greater the compressi...

Страница 21: ...ubtle appearance of an instrument the AGC will hold its gain level giving rise to the contrast of loudness When the piano passage reaches the HOLD level the AGC unhold and begins to increase their gai...

Страница 22: ...ers with high level The limiters contain the peaks by clipping a technique much more lasts that the compression With short attack times hard clipping is avoided but very short times can produce a soun...

Страница 23: ...k 462dsp offers numerous features To change the current program to anyone of the 30 presets from the PC using a drop down menu The change take place in real time Create and edit the programs with an a...

Страница 24: ...Page 24 SOLIDYNE 462dsp broadcast digital processor THIS PAGE HAS BEEN LEFT INTENSIONALLY EMPTY...

Страница 25: ...ly see mentioned article AES Today our ideas are used by Orban Omnia Aphex etc The concept of psychoacoustic processing is simple in essence although of complex accomplishment It consists of analyzing...

Страница 26: ...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 27: ...s 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 ob...

Страница 28: ...alue 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 belo...

Страница 29: ...to obtain the desired effect The ear will perceive a greater loudness when the band compressors increase the relative loudness level The processor Solidyne 462dsp has digital frequency splitters with...

Страница 30: ...o their fundamental notes Therefore adding harmonics artificially increases the wealth of the musical timbre Opposed is the effect that the distortion by IM produces This type of distortion DOES NOT E...

Страница 31: ...stereo coder see Chapter 7 2 2 10 MPX PROCESSING The studies about the modulation on an FM transmitter indicate that when the transmitter is modulated by stereo MPX signal appears a new effect not pr...

Страница 32: ...Page 32 SOLIDYNE 462dsp broadcast digital processor...

Страница 33: ...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 34: ...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 35: ...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 36: ...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 37: ...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 38: ...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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