Aviom Inc., manufacturer of A-Net Personal Monitor Mixing Systems, introduced the new A-Net Pro64 ASIC at AES. Additionally, the company launched the Aviom Technologies Group division to support this new version of the A-Net protocol.
A-Net Pro offers greatly increased data capacity and signal control, and addresses the performance requirements of sophisticated audio networking applications in studios, broadcasting, production and post-production facilities, as well as live performance.
“We looked at the needs of audio networking for live and studio situations, and determined the only way to ensure optimal performance for audio transmission was to design a protocol specifically for audio,” says Carl Bader, president and CEO of Aviom. “Since the introduction of A-Net, we have listened to feedback from the industry and have responded with the all new A-Net Pro system. A-Net Pro will enjoy service in a multitude of installations, helping to increase the production flow of audio data.”
Because A-Net was originally conceived for live stage monitor applications, the protocol was designed to transmit in only one direction: from the A-Net input module or distributor hub out to the performers’ mixers. In addition, the protocol was built to carry 16 channels to provide flexibility in monitor mixing.
A-Net Pro is fully bi-directional and has dramatically increased capacity, while preserving the central performance specs of A-Net: uncompressed, ultralow-latency in a plug-and-play system. The new version of the protocol carries up to 64 audio channels on a single wire pair in a Cat-5 cable, at 24 bits. In specialized networks, A-Net Pro can carry 256 channels without sacrificing performance.
In addition, the protocol has dedicated bandwidth for bi-directional talkback, plus the revolutionary Virtual Data Cables™ (VDC™). These can be assigned to multiple simultaneous different data types, such as MIDI, RS-232,and GPIO. This makes an A-Net Pro network a hybrid network with high-bandwidth data capability, all over standard Ethernet-type cable.
A-Net Pro also provides important flexibility in sample rate and clocking. The Pro64 ASIC supports variable sample rates, within three ranges: 39kHz-52kHz (for 44.1kHz and 48kHz applications), along with 2x (96kHz) and 4x (192kHz) ranges. In 2x and 4x modes, channel counts are reduced by a corresponding factor. Additionally, an A-Net Pro network can sync to the digital clock in any unit; that is, any unit in the network can be set as the audio clock master. Alternatively, the A-Net Pro network can be synchronized to an external master clock from any point in the system. This flexibility is critical in certain applications, such as synchronizing to video or digital consoles, or in facilities with a house clock.
A-Net Pro offers two powerful methods of distributing the audio channels. In Auto mode, A-Net Pro self-configures into a 64-channel “omni-directional” audio network, with no upstream or downstream signal flow limitations. Instead, all 64 audio inputs become simultaneously available at every point in the network, regardless of the apparent position in the stream.
Aviom will introduce the first products in its new line of networking products based on the A-Net Pro protocol beginning in Q3 of 2005. In addition, the company will release the A-Net Pro64 ASIC System in mid-2005.
For more information, please go to www.aviom.com.