WorldNet Tokyo apt-X Enhanced apt-X Audio Codec

The WorldNet Tokyo is a multi-algorithm, full-duplex, stereo audio ISDN codec offering all popular coding algorithms, including Standard 16 bit apt-X™, Enhanced 16, 20 & 24 bit apt-X™, MPEG 1 and 2 Layer II / Layer III (MP3), G.711, G.722 and MPEG 2 AAC. With this unique feature set, the WorldNet Tokyo guarantees connectivity to all established ISDN audio codecs. In the past, broadcasters had to make difficult choices when deciding which ISDN the codec to buy, as no single codec offered full compatibility between the various standards.

The introduction of the WorldNet Tokyo addresses this issue, thus solving both compatibility and financial dilemmas in one single unit. The WorldNet Tokyo ensures connection and synchronisation to all popular ISDN codecs, regardless if the unit is an APT codec such as the DSM100/Pro-Link, WorldNet Milano, DRT128 or BCF384 or whether it is a third party codec such as the Telos Zephyr or CCS CDQ Prima®. A key feature of the WorldNet Tokyo is that it incorporates Standard and Enhanced apt-X™ compression algorithms.

The apt-X™ algorithm is the defacto standard across the professional audio industry and is in daily use throughout the world delivering superior audio quality over countless networks. A real time digital audio data reduction system, Standard and Enhanced apt-X™ compress audio samples by a factor of 4:1 with no perceptive audible degradation and a negligible coding delay of sub 2 milliseconds at 48kHz. Offering resilience to multiple coding, the apt-X™ algorithms overcome the problems associated with multiple psycho-acoustic passes of audio in the broadcast chain.