Side by Side: IP Codecs


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Radio has always had a connection with listeners and the public. In a way it’s the original social media outlet. And radio stations still connect to their audiences through public appearances.

Like all technology, radio remote equipment has moved forward with the times. Establishing a direct RF link is nearly a forgotten practice in larger markets. Even ISDN, once touted as the future of all telephony, has come and gone as a common connection option with many telephone companies dropping the service.

But we are a connected society. It’s rare to be anywhere in the U.S. without some kind of Internet access. IP connectivity has gained importance as a practical means of audio contribution delivery.

In this column we try to present several products in an equal setting so you can see an apples-to-apples comparison of features and specifications. We have done that here as usual, but we have noticed that each manufacturer has its own view of important features. Like any data product, while one unit may shine in a specific situation where another one just gets by, changing the variables can just as quickly shift the application curve to another product.

Model
AEQ Phoenix
Comrex Access Rack and Portable 2USB
Telos Z/IP One
Tieline Genie
Worldcast Horizon NextGen
Audio I/O
XLR (line analog in/out), DB15 (dual AES3 in/out), 1/4” headphone
Rack (R): XLR (analog line in/out), XLR (AES3 in.out) Portable (P): XLR (mic/line in), 3.5mm TRS (line in/out), 3.5mm headphone, 3.5mm mobile in/out
XLR (mic or line analog in, line out), Livewire, 1/4” headphone
XLR (line analog in/out or AES3 in/out), 1/4” (mic/line in), 1/4” headphone, DB25 (4x analog mic/line in/out or 4x AES3 in/out)
XLR (line analog in/out, AES3 in.out)
Data path
-
RS-232
RS-232
RS-232
RS-232
Connectivity - standard
Ethernet x 2
Ethernet, POTS
Ethernet
Ethernet, USB
Ethernet x 2
Connectivity - options
ISDN module x 2
Dual USB for 3G/4G
-
-
-
Algorithms
G.711, G.722, AEQ LD, Layer 2, PCM (optional: Layer 3, AAC LC, AAC LD)
G.711, G.722, BRIC-HQ1, BRIC-HQ2, BRIC-ULB, PCM, FLAC, AAC, HE AAC, HE AAC v2, AAC LD, AAC ELD
G.711, G.722, Layer 2, AAC, MPEG4 AAC LC, MPEG2 AAC LC, PCM, AAC ELD, HE AAC
G.711, G.722, Tieline Music, Tieline MusicPLUS, Layer 2, AAC LE, AAC HE, Enhanced Apt-x, PCM
Enhanced Apt-x, Layer 2, PCM. Pending: Layer 3, AAC HE
Other I/O
USB, serial
Both: Ethernet, USB, keyboard, mouse, VGA monitor. P: SD card slot, Cardbus slot
Ethernet, USB
BNC wordclock
SD card slot
Tech3326 Compatible?
Y
Y
Y
Y
Y*
Traversal Server
AEQ server
BRIC-TS
Z/IP Server
Uses IPv6
In development
Contact Closures
2
4
8
4
4
Power
90 - 250 Vac
R: 90 - 264 Vac, P: 100 - 240 Vac/15Vdc/internal battery
110 - 240 Vac
dual 100 - 240 Vac
100 - 250 Vac
Size
1RU x 11”
R: 1RU x 9.75”
P: 4.75” x 8.25” x 2.5”
1RU x 13.8”
1RU x 13.5”
1RU x 6.3”
Accessories
Multi-codec remote control
P: USB Wi-Fi modem
USB Wi-Fi stick, USB to RS-232 adapter
Tieline Codec Management
-
Options
-
P: expansion mixer
-
-
-
Weight (lbs.)
7.7
R: 8.6         P: 2.2
7
6
3.3
MSRP
$2,995
R: $3,000       P: $3,800
$2,195
$4,995
$1,900
URL
aeqbroadcast.com
comrex.com
telos-systems.com
tieline.com
aptcodecs.com

* With the algorithms pending, Tech3326 is also pending.




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