APT is over 30 years of expertise delivering exceptional audio quality on a solid, reliable platform. Hundreds of prestigious radios and broadcasters like the BBC World Service, NHK in Japan or RTL in France trust us to transport their audio streams during outdoor broadcasts or between their studio and broadcasting sites such as the Eiffel Tower.
In addition to customers in the broadcast field, we also serve the Professional Audio community and other businesses in need of a top quality broadcast solution. Our current range of IP audio/MPX codecs and our remote solution for live audio/video streaming continue to lead the field with the same level of commitment to quality, reliability and innovation we have always shown.
The highest signal fidelity, which we established from the beginning with Enhanced aptX. Protect the fidelity
of your content and avoid listener fatigue and tune out!
As the Low-Delay Company, we have redefined transmission latency and all APT products convey this ethos. With SureStream, the Internet is evolving into a highly reliable low-delay network.
APT products save you money.
SureStream, Enhanced aptX and Composite/MPX transmission constitute an eco-system that provides highly available and high quality audio distribution outside of expensive transmission paths.
APT is specialized in the design and manufacture of low latency / high-quality Audio, MPX and Video over IP - primarily for the broadcast market. The team is underpinned with highly skilled and experienced designers and is supplemented by our excellent technical support, product management and sales & marketing team.
APT uses high-availability design & test and continuous improvement strategies to deliver products for 24/7 use.
"As a member of APT since 2008, I have R&D Manager responsibility for the APT range of IP codecs and transport hardware and software - managing schedules, people and resources to deliver new technology to market. Prior to APT I led a team that designed embedded systems for medical devices and have an in-depth knowledge of regulatory systems & quality control."
Ken Kearney
Deputy Group Tech Strategy
Founder of the Open Audio Network (OAN) in the 1990s and expert in WorldNet Oslo at APT, Hartmut joined WorldCast Systems in 2005. As the Audio codecs and IP network expert, he was the driving force behind the innovative APT SureStream Technology. Hartmut plays a significant role in the development of IP codecs and the alignment of sales strategy.
Hartmut Foerster
APT Product Manager /
IP Application Engineer
APT codecs offer the reliability, quality, and redundancy required by broadcasters for applications such as Studio-Transmitter links, studio networking and remote broadcasting/OBs. With both stereo and multi-channel audio platforms available, APT units can be deployed as a simple STL, a large-scale broadcast audio network or an audio distribution installation for commentary or in-store music.
With SureStream, we have extended our contribution/distribution expertise to include low latency, high quality video transmission from the field to the studio.
Remote broadcasting
Remote studio codecs
Studio to transmitter link (STL)
Secure IP transport
SureStream is a revolutionary technology for robust, low cost, and low latency audio / video transport over IP. This innovation enables broadcasters to deliver the high professional broadcast-grade audio/video quality you expect from a T1/E1 link, but at a fraction of the assoicated cost.
SureStream Technology also offers the added benefit of «Always-On Redundancy». With SureStream technology, you can save thousands on your audio transport bills and still offer your listeners the highest quality sound.
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APT codecs are full of many innovative and unique features. Combined, these features offer a highly resilient architecture that is inherently redundant and self-governing in terms of audio routing and backup. This "Unbreakable Link" is composed of the following core elements:
Similar to a ring topology with drop and insert capabilities used in E1/T1 networks but with all the flexibility and cost-savings of IP, the Audio Package is the ultimate solution for delivering a resilient audio over IP network. They can be deployed all together or in any combination to make it a perfect fit to each project.
Both the APT IP Codec and the AoIP Multichannel Codec offer support for Digital MPX/Composite enabling fully digital distribution of the Digital MPX/Composite signal using an AES connection over an IP network.
Our solution provides analog-analog, analog-digital and digital-digital MPX/Composite distribution all on a single platform provides broadcasers with a solution for the current needs and a clear and affordable migration path for the future.
With APTmpX get the best MPX compression algorithm that delivers the highest sound transparency over low-bitrate IP transmissions. This awar-winning technology is enhanced to transmit the final MPX signal at 300, 400, 600 or 900kbps.
«With the Multi-channel AoIP Codec, we have a reliable, scalable platform that delivers high-quality audio. And, most importantly, with SureStream, we have a simple, convenient solution that requires very little configuration and supervision and maintains the consistency of our audio quality output, even in the most intolerable network conditions.»
- Jordi Gol, Director of Technology -
Grupo Flaix, Catalonia, Spain
Content, such as radio programs broadcast with synchronized transmitters (SFN), be it analog (FM) or digital (DAB+), or multiple audio channels building a surround sound image must be synchronized with high precision.
APT SynchroStream is a professional solution for synchronized content transmission.
To ensure that broadcasters can offer the very best sounding content around, every APT audio codec offers the ability to deliver both pure, uncompressed, linear audio and the high-performance, low-delay aptX enhanced algorithm as standard.
Enhanced aptX and APTmpX offers broadcasters a unique feature set delivering audio and MPX quality indistinguishable from linear at much reduced bit rates. Based on ADPCM techniques, it offers a non-destructive approach to compression with resilience to cascading and an extremely low coding latency of under 2ms.
To ensure maximum compatibility, many APT audio codecs also provide a wide range of other coding algorithms whether as standard or as options.
TECHNOLOGIES
Contact us for any of your inquiries. Our Sales team is here to assist you with projects, questions on our products, or to find a local distributor.
FOR TECHNICAL SUPPORT, please go to the support page to submit your request. The below form is for new inquiries only.
