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SOLIDYNE 462

dsp - broadcast digital processor

 

 

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19

 

14: VOICE IMPACT

 

This  adjustment  specially  is  designed  for  locution.  When 
462dsp  is  connected  to  the  console  using  MICstart;  opening 
the  microphones  462dsp  changes  its  program  to  process  the 
voices with a special adjustment. 

The 

AGC

  must  recover  fast  to  compensate,  for  example,  a 

telephone communication that arrives with low level. The  hold 
threshold  must  be  relatively  low,  around  17  dB,  to  avoid  that 
the  AGC  “is  hooked”  and,  in  this  way,  to  obtain  that  it  reacts 
quickly before any difference of level between different voices. 
Remember  that  the  objective  is  that  the  voices  always  sound 
on the air with the same level. The attack of the AGC also must 
be  fast,  to  make  level  abrupt  changes  of  level  that  can  take 
place by shouts (discussions) or outbursts of laughter. 

The  speed  of  attack  of  the  compressors  must  be  fast,  to 
contain  great  impulses  that  take  place  in  the  beginnings  of 
phrases,  when  the  compressors  begin  to  work.  If  the  attack 
times  are  long,  can  take  place  excessive  processing  and  trim 
of  the  signal  in  certain  entrances  of  the  speaker;  in  other 
words,  the  speaker  will  sound  “saturated”  or  “dirty”  during  a 
brief moment when he begins to speak. 

On the recovery times there is more freedom, reason why they 
will  be  fit  according  to  the  type  of  voices  of  the  radio.  Like 
general  rule,  remembers  that  long  recovery  times  produce  “a 
smooth”  processing,  whereas  with  short  times  the  loudness  is 
increased  but  the  processing  becomes  more  “heavy”  (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  around  9  dB.  An  excessive  processing  will  sound 
disagreeable to the ear.  

 

 

TAKE IN MIND 

  When  creates  your  own  adjustment  for  the  voices, 

considers that the equalizing does not have to be radically 
different  to  the  used  for  music.  That  is  to  say,  the  voice 
impact program MUST BE CUSTOMIZED maintaining the 
equalization used for the music.  

 

4.3 USER PROGRA MS 

Default 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  modify  the  preset  values  in  the 
user  memory.  To  copy  a  program  proceeds  as 
following: 

4.3.1 COPY PROGRAM 

At the main menu enter to the option COPY PGM. 
A screen will appear to define: 

 

a) 

Source  program  (From): 

Number  (name)  of  the  program 

that  you  want  to copy. To select this  option turns the JOG 
(observes  the  arrow)  and  touch  it  briefly  to  confirm.  Soon 
turns  the  JOG  again  to  explore  the  programs,  and  touch 
briefly to confirm. 

b) 

Destiny  program  (To):

  Number  (name)  of  destiny 

program. To change it proceed like in the previous step. 

In  order  to  confirm  the  action,  turn  the  JOG  to 
select  “Copy”  and  touch  it  briefly.  The  processor 
remains  in  the  present  program.  In  order  to  load 
the  copied  program  you  needs  select  it  from  the 
main screen. 

 

Once a user program is overwritten, is not 
possible to recover it. Default presets cannot 
be changed by any error of use.  

4.3.2 EDIT PROGRAMS 

From  this  option  you  accede  to  the  heart  of  the 
processor. You can edit the processing values for 
anyone  user  program.  Selecting  this  option  you 
enter  to  the  program  edition  screen,  described 
next. 

 

 

TIPS 

  To people who do not have time to fit and to hear carefully 

the Radio, throughout several days, we recommend to use 
some  of  the  15  default  presets.  Only  sound  technicians 
with  great  patience  will  have  to  try  to  make  their  own 
adjustments. Its patience will be compensated surely by a 
customized  sound  different  from  the  sound  of  other  radio 
stations. 

  Please read carefully the  description  of  each  adjustments 

made  by  Solidyne.  Take  it  the  time  to  listen  to  each 
program and how each control affects to the sound on the 
air. Once  you knows clearly “so  that”  of  each  adjustment, 
comes to make your customized adjustment. This way will 
be easy for you to obtain that sound that you have in mind. 

  Of  no  way  is  recommendable  to  change  values 

“completely  without information”,  without knowing how  will 
affect each change to the sound of the radio. 

  Finally,  an  encouraging  commentary;  these  adjustments 

are  zero  risk,  because  you  always  will  be  able  to  return 
from the default program, that never change. 

 

Summary of Contents for 462dsp

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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