FLD-05-SE
Audio Equipment
 
 

 

The digital audio processor combines a built-in stereo enhancer, an MPX stereo coder (+ clipper) and a RDS coder together with a perfect 5 band digital audio processing.

The main advantages are:

No more compatibility problems in connecting equipment of different types and manufacturers.
A single device instead of four units: extraordinary savings of both space and money.
Fully digital signal processing: top audio quality from the console desk to the final TX.
A single software application for both local and remote control, to greatly simplify broadcast management.
The processor offers 30 pre-programmed templates, allowing you to customize all processing parameters to substantially vary the sound color and enhancement, so that even novice operators can create a superb and unique sound to identify their radio station.

The sophisticated AGC (Automatic Gain Control) system compensates for input level variations, always keeping the actual signal at 0dB.

The AGC setting parameters include: AGC Speed, MaxGain, Hold time and freezing threshold (GATE).

The digital input supports many audio formats (AES3/EBU, S/PDIF, IEC60958, EIAJCP1201) and does not require any special setting since it can recognize the injected signal and configure it automatically.

The digital, top quality Stereo Enhancer features all the setting parameters needed to reach the acoustic effect you' ve always wanted (Effect Depth, Effect Band, Effect Level).

As it is fully built in into the processor, the module is completely harmonized with other signal processing sections.

The fully digital MPX stereo coder built-in ensures the best compromise between signal density and observing modulation limits.

The processor is completely removable via serial ports (optoisolated) and can be controlled directly by PC or via satellite.

The processor also features a full digital RDS encoder. The RDS programming takes place through a dedicated PC software interface.

 

 
   
 
     
 
 
FLD-05-SE
Audio Equipment
 
     
 

Analog input:
A/D Conversion 24 bit
Connectors XLR female el. balanced
Sensitivity -20 dBu to 20 dBu.
Max Input Level + 22 dBu
Impedance 600 W / 10KW (Electronically bal -selectable) EMI –suppressed
Dynamic Range 98 dB RMS (102 dB A weight)
AGC Gain Offset ± 6dB
AGC speed 0 to 6 dB/s (adjustable)
AGC Range ± 20dB

Digital input:
Connectors XLR female optical standard connector tosh/link
Formats AES3/EBU, S/PDIF, IEC60958, EIAJCP1201
Sampling Rates 32KHz / 44.1KHz / 48KHz / 96KHz with automatic selection and jitter correction
Input Sensitivity 200 mVpp
AGC Speed 0 to 6 dB/s (adjustable)
AGC Range ± 20dB
Conversion 24 bit

By-pass mode (AGC=Off, Gain Ofst=0 dB, Out_Lvl=0 dB):
Frequency Response 30 Hz-15 KHz (± 0.1 dB)
Output Noise -98 dB (A-weighted)
Total Harmonic Distortion 0.005%
PassBand Ripple +/- 0.01 dB

Input filter characteristics:
High Pass 30Hz (IIR-4th Order)
Low Pass 15KHz (FIR-84 Taps, 15KHz / -0.1dB, 17KHz / -70dB)

Signal process:
Sampling rate 32 kHz to 96 kHz
Filters Band Pass 30Hz-200Hz (IIR 4th Order-Butterworth)
Band Pass 200Hz-1.5Khz (IIR 4th Order-Butterworth)
Band Pass 1.5Khz-4.8Khz (IIR 4th Order-Butterworth)
Band Pass 4.8Khz-9.5Khz (IIR 4th Order-Butterworth)
Band Pass 9.5Khz-15KHz (IIR 4th Order-Butterworth)
Bass Enhancer Filter (Programmable)
HF Limiter Filter: (IIR 2nd , 6KHz)
High Freq Denoiser: Threshold Adjustable –51 ÷ -80 dB

Controls
Super Bass Type(Disco Soft Bass, Club Long Bass, Tight Hard Bass)
Super Bass Level (0 ÷+12dB)
Bass Threshold Level
Mid1 Threshold Level
Mid2 Threshold Level
Mid3 Threshold Level
High Threshold Level
Wide Density (0 ÷+12dB)
rilliance ( ±6 dB)

Preset:
30 presets factory programmed and 10 user-editable

Analog audio uotput:

Output filter:
Characteristics Low Pass 15KHz (FIR-90 Taps,15KHz / -0.1dB, 17KHz / - 80dB)
Connectors XLR-type, male
D/A Conversion 24bit
Configuration pre-emphasized (50uS-75uS) internal or external
Level -4dBu to 20 dBu (Adjustable with 1 dBu Steps)
Dynamic Range 98 dB (104 dB A weight)
Impedance 600 W (Balanced) EMI suppressed
Input/Output delay < 1.5 mSec
Tone generation 400 Hz, Ref 100% Modulation

Remote controls:
Satellite data Port 4800 baud
PC Host Communication Port 19200 baud

RDS module:
PS: Program Service Name
PI: Program Identifier
PTY: Program type
TA: Traffic Announcement
TP: Traffic Program
M/S: Music/Speech
AF: Alternative Frequencies
RT: Radio Text
DI: Decoder Identifier

MPX module:
Conversion 16 bit
Pilot Frequency 19 KHz ± 2 Hz
Pilot Injection Adjustable from –17 dB to –23 dB
Pilot Phase Adjustable ±6 degrees (0.5 dB step)
S/N >90 dB
Stereo Separation 65 dB Typical @ 1 KHz
Cross-talk Main to Sub 65 dB
Cross-talk Sub to Main 65 dB
38 KHz Subcarrier Suppression Less than measurable level
Composite output level -8 to +12 dBm
Impedance 50 W
Output Connector BNC floating over chassis, EMI sup
Pilot reference output TTL Level Wave
RDS Input -40 to 0 dBm for ±2KHz of main carrier
Impedance 10KW
Input Connector BNC floating over chassis, EMI suppressed
SCA Input -40 to 0 dBm for 10% of main carrier
Impedance 10KW
Input Connector BNC floating over chassis EMI suppressed

Stereo enchancer module:
Effect Depth 0mSec to 30mSec
Effect Band 3KHz / 5KHz / 8KHz to 15KHz
Effect Level -29dBu to -6dBu

 
 
 
  

ITEL S.r.l.
TELECOMUNICATIONS AND BROADCASTING SERVICES
Via Friuli, 6 - 33074 Fontanafredda (PN) - ITALY
Tel. +39 0434 997667 - Fax. +39 0434 997687