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SILVER Audio Processor 4Bmini User’s manual

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Audemat-Aztec SA – Audemat-Aztec INC

web: www.audemat-aztec.com - e-mail: [email protected]

USER’S MANUAL

Silver Audio Processor 4Bmini

Broadcast Audio Processor

Operational Manual

Version 1.3/ 2007-08

Содержание 4Bmini

Страница 1: ...i User s manual Page 1 38 Audemat Aztec SA Audemat Aztec INC web www audemat aztec com e mail contact audemat aztec com USER S MANUAL Silver Audio Processor 4Bmini Broadcast Audio Processor Operationa...

Страница 2: ...LVER Audio Processor 4Bmini and Its Processing Structure __________________________________10 THE PROCESSING PATH _______________________________________________________________________10 MENU OVERVIE...

Страница 3: ...ctions should be adhered to Follow instructions All operation and user instructions should be followed Water and Moisture The appliance should not be used near water e g near a bathtub washbowl kitche...

Страница 4: ...e the appliance beyond that is described in the Operating Instructions All other servicing should be referred to qualified service personnel CE CONFORMANCE This device complies with the requirements o...

Страница 5: ...a fast 8 bit micro controller which controls an array of specialised analogue and digital circuits These include 24 bit A D and D A converters analogue level control circuitry 6 x 24 bit DSP s an Ethe...

Страница 6: ...ec INC web www audemat aztec com e mail contact audemat aztec com Silver Audio Processor 4Bmini rear and front panel Front panel Rear panel Status LEDS Control knob Soft Keys Mains power unit Lan port...

Страница 7: ...e INPUT menu and scroll to find the ANALOG LEVEL parameter Select it and set the desired value You can check the current levels with the SILVER Audio Processor 4Bmini at any time by displaying the met...

Страница 8: ...level set by the multiplex output level control The IO meters follows an approximation of the PPM level of the audio waveform Multi band AGC The first four gain reduction meters show the gain reducti...

Страница 9: ...ate a busier packed wall of sound effect Clipping Clipping the audio waveform will not produce any audible side effects if performed in moderation Excessive clipping will produce a form of distortion...

Страница 10: ...provide up to 6dB of gain on one of four frequencies with a choice of 4 Q s This can be thought of as a simple bass parametric Xover The SILVER Audio Processor 4Bmini employs linear phase time aligne...

Страница 11: ...LVER Audio Processor 4Bmini User s manual Page 11 38 Audemat Aztec SA Audemat Aztec INC web www audemat aztec com e mail contact audemat aztec com SILVER Audio Processor 4Bmini PROCESSING BLOCK DIAGRA...

Страница 12: ...e you can fine tune your sound STEREO Contains all the controls that affect MPX output SCHEDULE Contains all the real time clock controls for switching presets Dayparting SYSTEM Contains all the syste...

Страница 13: ...into the AGC 0dB drive corresponds to a gain reduction of 0dB the midway point The drive can be increased or decreased by up to 12dB You may need to increase the drive a little as you go up through th...

Страница 14: ...trols the clip level of the mix of Bands 1 and 2 The clip level range is 6dB to 0dB referenced to the main clippers output level HFCLIPPLING This control redistributes high frequency peak control betw...

Страница 15: ...ed More information is available in the trigger port section of this manual CODE LOCK This enables or disables the security code lock The options are enabled and disabled More information is available...

Страница 16: ...intelligent controls you really do have a powerful levelling tool The Multi band AGC stage of the Silver Audio Processor 4Bmini FM has two main functions 1 To re equalise the program material to provi...

Страница 17: ...s the effect of switching the gate on at all times with any level of program material This option is used to bypass the AGC Under gated conditions the gain reduction will slowly move to average gain t...

Страница 18: ...n the audio energy falls away and the circuit goes into release the peak decay will dominate until it reaches a point where it hands over to the slower secondary time constant for a slower rate of dec...

Страница 19: ...gy has its own reserved space in the summated waveform and we reduce the likelihood of bass generated IM distortion The downside to bass clipping is you are restricting the bass to a lesser level than...

Страница 20: ...best knowing that the clipper hardness control has been set correctly to help keep the distortion down on difficult program material There s also an overshoot control for the clipper Setting this cont...

Страница 21: ...will provide you with clean bass and crystal clear razor sharp high frequencies The choice is yours More LOUDNESS Loudness can be increased in several ways Multi band AGC Increase the drives to the ba...

Страница 22: ...STUCK AND LOSE YOUR WAY ONCE YOU START TWEAKING LOTS OF DIFFERENT SETTINGS More BASS We can obtain more bass in several ways Bass Enhancement Increase the peaking filter gain Increase the peaking filt...

Страница 23: ...gain to be applied to low level HF waveforms Consider force gating the AGC band 1 so the multi band AGC for band 1 is bypassed Multi band Limiters Increase the band 4 limiter drive Slow down the peak...

Страница 24: ...tton The middle button of the softkeys will change to B Pressing this button will reload the saved preset allowing you to compare before and after your changes The previously marked B button will have...

Страница 25: ...sound distorted with certain program material but produces very consistent sound on various program material F5 LOUD BASS A preset for competitive stations who want loudness and more of a signature s...

Страница 26: ...to the serial system RS232 or the Ethernet LAN system at any point in time so you will need to select which one of the two remote control methods you wish to use by selecting the appropriate option fr...

Страница 27: ...u are free to change these on the SILVER Audio Processor 4Bmini itself see information on password control elsewhere in this manual NET LAN PORT The SILVER Audio Processor 4Bmini is equipped with a NE...

Страница 28: ...n is selected on the menu tree located to the left of the screen The SILVER Audio Processor 4Bmini remote control application has three windows The left hand contains the navigation preset window The...

Страница 29: ...to mark these occurrences DP for Daypart and TR for remote trigger If a daypart of trigger occurs the TR or DP will appear next to the name and the preset name will change to green to indicate that it...

Страница 30: ...reset name to be edited You are restricted to 15 characters Saving presets to PC This option will pop up the standard windows save dialog box You can select a file name and location for the preset to...

Страница 31: ...he time and day that the daypart will start at To select day hour or minute click on the appropriate part of the box before using the up and down arrows The day part of the time also has an ALL option...

Страница 32: ...ow the connection button These buttons allow you to compare changes you have made to the processing against the saved preset When you load a preset the buttons should be greyed out but as soon as you...

Страница 33: ...ion pin for the 8 opto isolated trigger pins When the trigger pins are connected to the earth return pin they will change the currently active preset to the user preset triggered by that pin If more t...

Страница 34: ...menus with 3779 Enabling the security code lock feature Navigate to the system menu and set the code lock option to enabled Confirm the current password The lock will engage after four minutes of no...

Страница 35: ...ble it and with the same control set the preset to switch to when the daypart triggers when the daypart start time matches the system clock You can also set the start time trigger of each daypart and...

Страница 36: ...sion 48 KHz 24 bit 128x oversampled delta sigma converter with linear phase anti aliasing filter Filtering RFI filtered Digital Audio Input Configuration AES EBU Stereo 24 bit resolution software sele...

Страница 37: ...hassis ground Pilot Output 19 kHz Pilot Reference BNC 5V sine unbalanced and floating over chassis ground Software selectable Remote Control Serial Port DB9 rear panel 19200 kbps Ethernet Port 10 Mbit...

Страница 38: ...THER INFORMATION Audemat Aztec 20 avenue Neil Armstrong Parc d Activites J F Kennedy 33700 BORDEAUX MERIGNAC FRANCE Tel 33 5 57 928 928 Fax 33 5 57 928 929 Hotline services audemat aztec com USA Audem...

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