Solidyne 462dsp/AM, User Manual

Page 1: ...gital 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 July 2007...

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

Page 3: ...Chapter 4 Audio processing settings 17 4 1 PROGRAM SELECTION 17 4 2 DEFAULT PROGRAMS 17 4 3 USER PROGRAMS 18 4 3 1 COPY PROGRAM 18 4 3 2 EDIT PROGRAMS 18 4 4 PROGRAM ADJUSTMENTS 18 4 4 1 PROGRAM NAME...

Page 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 e...

Page 5: ...elcome screen on start up and then will load the last used program SETTINGS Controls All settings values are entered using a JOG Wheel Turn the JOG to select options and to change values Pressing brie...

Page 6: ...e studies In other configurations the processor locates in the transmitting plant and a digital link is used to send the audio multiple sends can be used for backup In this case the remote control of...

Page 7: ...nd HF to the highs The LOUDNESS concept associates to the sensation of sonorous power perceived by the human ear With no need to exceed the maximum percentage of modulation fixed by the laws the proce...

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

Page 9: ...ocked nor covered not to obstruct the refrigeration of the internal components 462dsp AM has internal protection against RF fields which allows locate it next to transmitters AM or FM Avoid strong ele...

Page 10: ...o with extended range 20 Hz 15 KHz It is used for transmission of the radio via Internet The output level is FIXED 2 dBm It has soft clipping limiters that optimize the yield of the streaming coder In...

Page 11: ...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 462dsp AM returns to the previous pro...

Page 12: ...Page 12 broadcast digital processor SOLIDYNE 462dsp THIS PAGE HAS BEEN LEFT INTENSIONALLY EMPTY...

Page 13: ...y programs 3 1 3 Modes of control The processor can be controlled of many ways a Manually controlled from the frontal panel c The programs can be created and edited using the 462dsp AM VirtualRack sof...

Page 14: ...enerated in the receiver the digital streaming follows present but without content of audio channels muted Reestablishing the signal in Auto Search mode The unit switches automatically to the analogic...

Page 15: ...tive one can vary between 100 and 150 The advanced asymmetric clippers with double stage of Log clipping developed by Solidyne allows to increase the transmitted power and the reach of the radio This...

Page 16: ...e JOG cancels the process in any instance equivalent to escape except when OK is selected in such case confirm the password To delete the password edit it entering 3 space characters Write down the pa...

Page 17: ...nd 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 attack time of th...

Page 18: ...er 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 kn...

Page 19: ...rect this situation increasing its gain When the speaker returns the AGC will reduce their gain again And it will have to act with very little delay The hold threshold will have to be low to avoid tha...

Page 20: ...g program according to the music style Remember that VirtualRack 5 also allows defining program changes according to a scheduling Next a screenshot of the multiband compressor stage and soon its descr...

Page 21: ...stened on the air Chapter 5 Remote Control 462dsp AM can be controlled from a PC by means of RS 232 connection The control software VirtualRack 462dsp AM offers numerous features To change the current...

Page 22: ...Page 22 SOLIDYNE 462dsp broadcast digital processor THIS PAGE HAS BEEN LEFT INTENSIONALLY EMPTY...

Page 23: ...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 24: ...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 en...

Page 25: ...t 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...

Page 26: ...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 27: ...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 AM has digital frequency splitters wi...

Page 28: ...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 EXI...

Page 29: ...combined RF IF and AF typical of 6 dB at 6 KHz and 10 at 8 KHz The characteristics of these receivers vary Excesive response Pre emphasis that does not provide audible benefits on narrow receiver but...

Page 30: ...Page 30 SOLIDYNE 462dsp broadcast digital processor...

Page 31: ...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 32: ...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 33: ...tack 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 co...

Page 34: ...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...