IP Audio Codecs

ISDN Audio Codecs

E1 Audio Codecs

T1 Audio Codecs

X.21 / V.35 Audio Codecs

Multiple-Channel Audio Codecs

WorldNet Studio Database

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APT Codecs are favored by broadcasters worldwide for their consistent reliability, cost-effectiveness and exceptional quality audio.

WorldNet Oslo - Audio, Voice, Video & Data over T1/E1 & IP
The WorldNet Oslo is a modular, multiple channel audio multiplexer enabling the transport up to 28 mono or 14 stereo channels of high quality audio content on a single T1, E1 or IP link. more...
WorldCast Horizon IP Audio Codec
For those looking to exploit the cost advantages and efficiency of IP audio transport, the APT's WorldCast Horizon is the perfect entry-level solution, offering broadcast quality and reliability. more...
WorldCast Astral IP Audio Codec with Facility Control
WorldCast Astral is the industry’s most versatile and professional low cost IP audio codec. Not only does the unit offer great value as an IP STL, it is also packed full of innovative features that make it the workhorse of your studio or transmitter site. more...
WorldCast Equinox IP & ISDN Audio Codec with X.21 / V.35
A stereo audio codec offering IP & ISDN connections with X.21 / V.35, the WorldCast Equinox provides a reliable and cost-effective platform for the transport of broadcast grade audio with 24/7/365 reliability.. more...
WorldCast Meridian IP Audio Codec with X.21 / V.35
A multi-algorithm, fully duplex, stereo audio codec offering both IP and Leased Line connectivity. A reliable and proven platform for studio to transmitter links and inter-studio networking applications worldwide. more...
WorldCast Eclipse IP Audio Codec with ISDN & X.21 /V.35
A multi-interface, multi-algorithm codec for a new age of broadcasting, the WorldCast Meridian delivers bidirectional stereo audio over IP, Leased Line and ISDN links. more...
WorldNet Rio Professional Leased Line Audio Codec
Designed to deliver high quality audio for inter-studio networking, remote/outside broadcasts and STL applications, WorldNet Rio utilizes permanent digital links such as X21, V35, T1 / E1, fractional T1/E1, Satellite or Microwave more...
WorldCast Horizon HD
Designed specifically for HD Radio™ applications. the WorldCast Horizon HD is a duplex stereo codec enabling the delivery of both FM and HD1 content from studio to transmitter site. more...

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