Brochure

Rack IP Audio Multi-Codec
HotSwap
ACCESS MultiRack is equipped with
HotSwap, a feature that allows users
to back-up dedicated links with a
wireless modem. With HotSwap,
users can select a network that
will only be engaged if the primary
network fails. Fall-over to backup
happens in a fraction of a second,
and fallback is seamless.
Audio Coding
For users with a lot of bandwidth,
ACCESS MultiRack includes Mono
or Stereo Linear PCM mode, an
audio coding format that does not
compress audio. ACCESS MultiRack
also includes FLAC, an encoder that
compresses audio with a lossless
algorithm.
For users with more limited
bandwidth, ACCESS MutliRack
includes AAC and HE-AAC
encoding algorithms as standard.
These algorithms preserve audio
quality while reducing the data
load significantly. For compatibility
with mobile phone or web apps
(like FieldTap), ACCESS MultiRack
includes Opus along with G.722
(a standard for VoIP phones and
codecs).
The chart to the right represents a
sampling of the algorithms available
as well as the corresponding encode
rates, network rates, bandwidth,
and delay.
For the Field: ACCESS NX
ACCESS NX is a portable IP audio
codec that’s made to go anywhere.
Whether you want to go live from
the sidelines or do your talk show
from the road, ACCESS NX is
designed with the user in mind. Use
CrossLock in bonding mode to take
advantage of marginal networks like
cellular and Wi-Fi.
Additional Compatibility
ACCESS MultiRack is compatible
with all ACCESS codecs, including
ACCESS NX, ACCESS Portable
Classic, ACCESS 2USB, ACCESS
NX Rack, and ACCESS Rackmount.
ACCESS MultiRack is also
compatible with BRIC-Link, BRIC-
Link II as well as the free smartphone
app FieldTap, available for Android
and iOS.
www.comrex.com • e-mail: [e-mail] • 19 Pine Road, Devens, Massachusetts 01434 USA • Tel: [phone] • Fax: [phone]
•*44.1kHzand32kHzmodesareonlysupportedviaAES3digitalaudioI/Oonbothendsoflink
•FLACbandwidthisvariableandbasedonaudioinput
ALGORITHM ENCODE RATE NETWORK RATE BANDWIDTH DELAY
Linear48kHzMono 768Kb/s 818Kb/s 22kHz 25mS
Linear48kHzDualMono 1.536Mb/s 1.586Mb/s 22kHz 25mS
Linear44.1kHzMono* 705.6Kb/s 751.6Kb/s 20kHz 27mS
Linear44.1kHzDualMono* 1.4112Mb/s 1.4572MB/s 20kHz 27mS
Linear32kHzMono* 512Kb/s 546Kb/s 15kHz 31mS
Linear32kHzDualMono* 1.024Mb/s 1.058Mb/s 15kHz 31mS
FLAC48kHzMono ~540Kb/s ~572Kb/s 22kHz 30mS
FLAC48kHzDualMono ~1.08Mb/s ~1.112Mb/s 22kHz 30mS
FLAC44.1kHzMono* ~500Kb/s ~530Kb/s 20kHz 32mS
FLAC44.1kHzDualMono* ~1Mb/s ~1.03Mb/s 20kHz 32mS
FLAC32kHzMono* ~360Kb/s ~382Kb/s 15kHz 36mS
FLAC32kHzDualMono* ~720Kb/s ~752Kb/s 15kHz 36mS
AACMono 56-64Kb/s 72-80Kb/s 20kHz 100mS
AACStereo 96-256Kb/s 112-272Kb/s 20kHz 100mS
HE-AACMono 18-48Kb/s 26-56Kb/s 15-20kHz 210mS
HE-AACStereo 64-96Kb/s 72-104Kb/s 20kHz 210mS
HE-AACStereov2 24-48Kb/s 32-56Kb/s 15kHz 250mS
OPUS48kbpsMono 48Kb/s 64Kb/s 20kHz 46ms
OPUS56kbpsMono 56Kb/s 72Kb/s 20kHz 46ms
OPUS64kbpsMono 64Kb/s 80Kb/s 20kHz 46ms
OPUS64kbpsStereo 64Kb/s 80Kb/s 20kHz 46ms
OPUS96kbpsStereo 96Kb/s 112Kb/s 20kHz 46ms
OPUS128kbpsStereo 128Kb/s 144Kb/s 20kHz 46ms
ACCESS NX Portable & Mixer