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Summary of Contents for Silver 4Bmini
- Page 1 SILVER Audio Processor 4Bmini User’s manual USER’S MANUAL Silver Audio Processor 4Bmini Broadcast Audio Processor Operational Manual Version 1.3/ 2007-08 Page 1/38 Audemat-Aztec SA – Audemat-Aztec INC web: www.audemat-aztec.com - e-mail: contact@audemat-aztec.com...
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Page 2: Table Of Contents
Silver Audio Processor 4Bmini rear and front panel ________________________________________________6 SILVER Audio Processor 4Bmini Jumper Settings__________________________________________________7 SILVER Audio Processor 4Bmini metering ________________________________________________________8 Introduction to Audio Processing________________________________________________________________9 The SILVER Audio Processor 4Bmini and Its Processing Structure __________________________________10 _______________________________________________________________________10 ROCESSING MENU OVERVIEW ____________________________________________________________________________12... -
Page 3: Safety Instructions
SILVER Audio Processor 4Bmini User’s manual Safety Instructions CAUTION: To reduce the risk of electrical shock, do not remove the cover. No user serviceable parts inside. Refer servicing to qualified personnel. WARNING: To reduce the risk of fire or electrical shock, do not expose this appliance to rain or moisture. - Page 4 SILVER Audio Processor 4Bmini User’s manual Power-Cord Protection: Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords and plugs, convenience receptacles and the point where they exit from the appliance.
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Page 5: Introduction To The Silver Audio Processor 4Bmini
4Bmini offers a versatile and powerful tool in creating a loud punchy on-air presence. The SILVER Audio Processor 4Bmini has been designed and built from scratch using a new approach to the design of a digital audio processor that incorporates the most up to date components. Cutting edge technologies allow the SILVER Audio Processor 4Bmini to produce similar results to other processors in the market but in a simpler more cost effective way. -
Page 6: Silver Audio Processor 4Bmini Rear And Front Panel
SILVER Audio Processor 4Bmini User’s manual Silver Audio Processor 4Bmini rear and front panel Front panel : Control Soft Status knob Keys LEDS Rear panel : Analogue Input AES/EBU Input Mains power unit Lan port RS232 & Trigger port Pilot... -
Page 7: Silver Audio Processor 4Bmini Jumper Settings
‘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 metering screen (press the middle soft key on the front panel). -
Page 8: Silver Audio Processor 4Bmini Metering
The output meters show a smaller dynamic range compared to the input ones. This reflects the smaller dynamic range of the audio once processed by the SILVER Audio Processor 4Bmini. If we were to have used the same scale as the input metering we would not see a lot of activity on the bars. -
Page 9: Introduction To Audio Processing
The SILVER Audio Processor 4Bmini has the ability to substantially improve the quality of your ON-AIR broadcast. However the SILVER Audio Processor 4Bmini can only work with what you provide it. The best performance will be obtained when the SILVER Audio Processor 4Bmini is fed with very clean source material. After dynamic multi-band re-equalisation is performed, poor quality source material will sound poorer when processed with the SILVER Audio Processor 4Bmini. -
Page 10: The Silver Audio Processor 4Bmini And Its Processing Structure
Bass enhancement The SILVER Audio Processor 4Bmini offers a bass enhancement via peaking filter that can be set to 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. - Page 11 SILVER Audio Processor 4Bmini User’s manual SILVER Audio Processor 4Bmini PROCESSING BLOCK DIAGRAM Page 11/38 Audemat-Aztec SA – Audemat-Aztec INC web: www.audemat-aztec.com - e-mail: contact@audemat-aztec.com...
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Page 12: Menu Overview
SYSTEM: Contains all the system controls (non processing) such as remote control and security. SOFTKEYS: The SILVER Audio Processor 4Bmini has three context sensitive soft keys that help access commonly used features. These intuitive softkeys are primarily designed to aid in the selection, loading and saving of presets, as well as displaying the metering screen. - Page 13 Pre-emphasis: This parameter allows you to activate pre-emphasis when the SILVER Audio Processor 4Bmini is being used to process for FM broadcast. The available options are 50uS, 75uS and OFF The 'PROCESS' menu allows access to all of the processing blocks that make up the SILVER Audio Processor 4Bmini.
- Page 14 BAND3MIX: - dB to + dB of level adjustment is available. BAND4MIX: - dB to + dB of level adjustment is available. The 'CLIPPER' menu contains the clipping controls that form the final peak limiting stages of the Silver Audio Processor 4Bmini.
- Page 15 SILVER Audio Processor 4Bmini User’s manual The 'SCHEDULE' menu contains all the controls for the dayparting (REAL TIME CLOCK) preset switching. 'TIME' Sets the time and day of the SILVER Audio Processor 4Bmini’s Real Time Clock. 'DAYPARTING ON/OFF Enables or disables the scheduling.
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Page 16: Setting Up The Processing On The Silver Audio Processor 4Bmini
The SILVER Audio Processor 4Bmini has a pseudo parametric style bass equalizer control that allows you to sweet tune the bass. Four frequencies, amplitudes and Q's are provided giving you 64 different bass curves to select from. - Page 17 This slows down the release time of the multi-band AGC when the program material drops below a certain level. This prevents noise suck up and gain hunting from occurring during quiet periods or lulls in the audio. The SILVER Audio Processor 4Bmini allows adjusting the gate level over a range of -20dB to -40dB.
- Page 18 SILVER Audio Processor 4Bmini User’s manual The multi-band limiters in the SILVER Audio Processor 4Bmini are of the dual time constant variety. There is an attack and decay to handle the peaks and an attack and decay to handle the average level of limiting. Understanding how the two time constants interact is imperative if you want to make major changes to how each bands limiter reacts.
- Page 19 The mixer The post limiters mixer in the SILVER Audio Processor 4Bmini is not strictly a mixer but a band output level control where small EQ changes can be made. Be careful when making large EQ changes at this stage because there is no peak control prior to the clipping system.
- Page 20 Auditioning individual stages of the SILVER Audio Processor 4Bmini processing When setting up the SILVER Audio Processor 4Bmini it is sometimes useful to hear the effects of the adjustments on that particular processing stage. By setting the other processing blocks up in a certain way you can make it easier to hear the effects of the one you are adjusting.
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Page 21: Getting The Sound You Want
Getting the Sound You Want While the SILVER Audio Processor 4Bmini can help you obtain the sound that you want we must always take into account the limitations presented to us by the transmission channel. The biggest problem we have is the maximum peak level that can be handled by that transmission channel. - Page 22 SILVER Audio Processor 4Bmini User’s manual More CLARITY We can obtain extra clarity and quality in several ways. Multi-band AGC: Slow down the release times, making them slower. Multi-band Limiters: Speed up the peak attack times, letting less through to the clippers.
- Page 23 SILVER Audio Processor 4Bmini User’s manual More TREBLE (HF) We can obtain more high frequency energy in several ways. When processing for FM we need to use distortion controlled clipping to preserve as much of the high frequency content as possible, which will be removed by the de- emphasis curve in the listeners radios.
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Page 24: Managing Presets (Front Panel Control)
Managing Presets (front panel control) The SILVER Audio Processor 4Bmini has an assortment of factory presets and provision for 8 user ones. While the factory presets may not suit your tastes you will generally find one that serves as a good starting point in creating your own custom preset. -
Page 25: Factory Presets
Factory Presets The factory presets in the SILVER Audio Processor 4Bmini are not supposed to be de facto standards by any means but are starting points for you to create your own user presets. It is impossible to create presets that will suit every format and market. -
Page 26: Remote Control Of The Silver Audio Processor 4Bmini
Remote Control Of The SILVER Audio Processor 4Bmini In addition to the front panel LCD control system the SILVER Audio Processor 4Bmini has a serial port and an Ethernet/LAN port. These allow remote control of the SILVER Audio Processor 4Bmini through a remote application program running on a window based PC. - Page 27 If you wish to use the NET/LAN port to control the SILVER Audio Processor 4Bmini follow the steps below 1. Connect the Ethernet cross cable (B) to the RJ45 port on the Silver Audio Processor 4Bmini and plug this into your PC.
- Page 28 The ‘Output’ level password could be given to programme controllers to adjust the processing knowing that the transmission will remain compliant as there is no way for the user to adjust the peak output level of the SILVER Audio Processor 4Bmini.
- Page 29 PC file operations to backup or share presets with other SILVER Audio Processor 4Bmini users. To perform an operation you will need to select a preset by clicking on to the name in the list.
- Page 30 The exception to this is when the default preset is being overridden by a daypart or remote trigger. In this case the SILVER Audio Processor 4Bmini will 'on air' the selected preset when the daypart or trigger hands back control to the default preset.
- Page 31 ON/OFF and time setting control. The two menu locations below it access two banks of four dayparts which make up the 8 dayparts contained in the SILVER Audio Processor 4Bmini.. On the daypart windows you have four dayparts. Each has three parameters. The left hand box contains the name of the preset that you want this daypart to switch to.
- Page 32 SILVER Audio Processor 4Bmini User’s manual We could instead setup the dayparts as DPO: F2:CHR - ALL 07:00 - 10:00 (factory preset 2 to run from 7AM everyday for 10 hours) DP1: U4:NEW PRESET - ALL 10:00 - 02:00 (user preset 4 to run from 10am everyday for 2 hours) which saves a daypart position.
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Page 33: Remote Trigger Port
The system menu contains the remote trigger port option from where it can be enabled or disabled. If enabled the remote trigger port on the SILVER Audio Processor 4Bmini allows you to select any of the 8 user presets by pulling one of 8 pins on the trigger port socket low. The rear panel trigger port socket is a 9 pin male D- type whose connections are shown below. - Page 34 If unsuccessful you will be required to try again. If successful the SILVER Audio Processor 4Bmini will allow you to re-confirm the code or change it. This is where you may want to change the factory default code if you have not already done so.
- Page 35 Clock Based Control (Dayparting) The SILVER Audio Processor 4Bmini contains a battery backed up real time clock that can maintain the current time and date even when the SILVER Audio Processor 4Bmini has its power removed. This allows users to switch between presets at specific times of the day or week.
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Page 36: Specifications
SILVER Audio Processor 4Bmini User’s manual Specifications Specifications apply for measurements from analog left/right input to stereo composite output. Frequency Response (Bypass Mode): Follows standard 50µs or 75µs pre-emphasis curve ±0.10 dB, 2.0Hz–15kHz. Noise: Output noise floor will depend upon on the processor settings but is governed by the dynamic range of the A/D Converter. - Page 37 SILVER Audio Processor 4Bmini User’s manual Subcarrier (SCA) Inputs Configuration: Subcarrier input sums into composite baseband output. Impedance: >10K SCA input level Sensitivity: Sums into MPX output at 10% injection. Connector: BNC, unbalanced and floating over chassis ground. Pilot Output 19 kHz Pilot Reference: BNC, 5V sine unbalanced and floating over chassis ground.
- Page 38 SILVER Audio Processor 4Bmini User’s manual FOR FURTHER 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 : Audemat-Aztec Inc.
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Questions and answers
some time therr is no output and you must make power off and on to work
The context does not specify exact causes for the Silver 4Bmini having no output and requiring a power cycle. However, possible service-related issues include:
- A damaged power supply cord or plug
- Objects or liquid entering the appliance
- Exposure to rain
- Abnormal operation or performance change
- Physical damage from being dropped
These issues may cause malfunctions that require a power cycle or professional servicing.
This answer is automatically generated