APT WorldNet Milano 电台解码

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声音比较中性，要比纯监听设备多一点点情感！
素质很好，尤其音场规整，有临场感！
耳放素质也很好！
4200元
QQ362605850

WorldNet Milano is a full duplex, multi-channel audio codec offering both fixed line and ISDNconnection. It incorporates both Standard and Enhanced apt-X and comes with optional SMPTE
timecode. WorldNet Milano has been designed to deliver high quality audio for post-production
facilities, studio to transmitter, studio to studio links and outside broadcast applications.
The apt-X algorithm is in daily use throughout the world delivering superior audio quality over
countless networks and is the defacto standard across the professional audio industry. apt-X is a real
time digital audio data reduction system that compresses audio samples by a factor of 4:1 with no
perceivable audio degradation and negligible coding delay. Offering resilience to multiple coding,
apt-X overcomes the problems associated with multiple psycho-acoustic passes of audio in the
broadcast chain. Enhanced apt-X offers 16, 20 and 24-bit resolution and increases both stereo and
mono audio channel performance. It also offers a reduction in coding delay, improvements in audio
quality and increased dynamic range.


WorldNet Milano offers key benefits for studio and broadcast audio networking :-
• Available audio bandwidths from 10Hz through to 22.5kHz with corresponding synchronous bit rates
from 56kbit/s to 576kbit/s (512kbit/s ISDN)
• Incorporates both Standard and Enhanced apt-X™ thus ensuring backward compatibility with
previous APT products
• Optional SMPTE timecode
• Flexibility of use over both dial up ISDN networks and permanent digital links such as T1, E1,
Satellite or Microwave.
• S and optional U ISDN interfaces
• Auxiliary data to 9600 Baud for additional control and data transmission, such as RDS
• Inverse multiplexing of up to 4 ISDN lines (8 Bearer channels)
• Analog and AES/EBU I/O capability on a standard XLR-3 audio interface
• Operational setup and monitoring through front panel control and display
• 5 status alarms and 4 opto-coupled I/PS for remote status
• Speed-dial redial back-up facility in the event of line failure
• Headphone monitoring of I/PS or O/PS with volume control




Technical Specification


Physical
Size 1U x 19” rack mount (44mm x 482mm x 255mm)
Weight 2.25kg
Power Supply 100-250VAC, 50-60Hz (optional 48 DC supply)
Power Consumption <25W
Environmental 0°C to 55°C , 95% humidity


Interfaces
ISDN S/U Interface, 4xRJ45, Rates 56-512 kbit/s
X.21/V.35 15 Way D type DTE Interface, RS422 levels, Rates 56-576 kbit/s
Aux. Data 9 Way D type, RS232 level
Data Rates 1200, 2400, 4800, 9600 Baud
Digital Operation Audio I/O, AES/EBU, Balanced XLR-3
Impedance 110Ω
Digital Reference Input, XLR-3
Analog Operation Balanced XLR-3
Input Impedance >10kΩ/600kΩ
Output Impedance <50Ω/600Ω
Alarms 15 Way D type
Timecode I/O XLR-3
Opto-coupler 15 Way D type


Audio
Sampling Frequencies:
Digital Operation 32kHz, 44.1kHz, 48kHz
Analog Operation 8kHz-48kHz
Sample Rate Convertor 3:1 (with bypass modes)
Audio Bandwidth:
Digital Operation 10Hz through to 22.5kHz mono & stereo
Analog Operation 10Hz through to 22.5kHz mono & stereo
Source Coding Standard and Enhanced apt-X™
Compression Ratio 4:1
Coding Delay:
Standard apt-X 2.5ms @ 48kHz
Enhanced apt-X 1.9ms @ 48kHz
Dynamic Range 16-bit > 85dB, 20-bit > 105dB, 24-bit > 110dB
Phase Response Linear : DC to Fs/2
Pass Band Ripple <-0.2dB

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