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Audio Live

Audio Router for Live Multistream IP Audio Processing

Audio Live is designed for modern, real-time IP workflows. It offers 2,048 channel processing capability for SMPTE ST 2110-30/SMPTE ST 2110-31/RFC3190/AES67 audio streams. It can be configured as an asymmetric router rather than a traditional square router, offering far greater flexibility. Input audio streams should be synchronous, but when this is not possible, Audio Live offers the ability to synchronize up to 16 asynchronous inputs streams.  


  • Flexible asymmetric router
  • Independent input and output routing configurations
  • 11 different routing configurations
  • Stream and channel swapping
  • 2048 x 2048 audio channel routing
  • Certified by Grass Valley engineering
  • Hardware and software supported by Grass Valley


Routing Configurations
  • 32 streams x 64 channels
  • 64 streams x 64 channels
  • 64 streams x 32 channels
  • 128 streams x 16 channels
  • 192 streams x 8 channels
  • 8x64, 32x16, 128x8 channels
  • 8x64, 64x16, 64x8 channels
  • 16x64, 16x16, 96x8 channels
  • 16x64, 32x16, 64x8 channels
  • 16x64, 56x16, 32x4 channels
  • 8x64, 96x16 channels

Minimum stream latency: 2 ms (for co-timed input streams)

Maximum input stream tolerance to ref.:
Up to 5s

Maximum input stream delay:
Up to 5s

Maximum output stream delay:
Up to 5s

Input Configuration
Input Timestamp Tolerance
32x64 1s
64x64 1s
64x32 1s
128x16 1s
192x8 20 ms
8x64, 32x16, 128x8 20 ms
8x64, 64x16, 64x8 20 ms
16x64, 16x16, 96x8 100 ms
16x64, 32x16, 64x8 100 ms
16x64, 56x16, 32x4 100 ms
8x64, 96x16 100 ms


Input Streams
  • Synchronous SMPTE ST 2110-30/SMPTE ST 2110-31/AES67/RFC3190 (PTP timestamps required in extended headers, RTP & PTP timestamps must be locked)
  • Supports various packet times per stream (provided the packet size is within 1500 MTU)
  • Up to 16 asynchronous streams can be synchronized to the reference stream
  • Packet redundancy (-7 style)
  • Packet reordering
  • Streams can have independent packet timing of 125 µs, 250 µs, 500 µs, 1 ms & 4 ms (nominated input reference stream should be ≤ 1 ms)


Output Streams

Synchronous SMPTE ST 2110-30/SMPTE ST 2110-31/RFC3190/AES67
Packet redundancy (-7 style)

Packet timing:

  • ≤ 32 channels, 12 samples per channel per packet (250 µs)
  • > 32 channels, 6 samples per channel per packet (125 µs)


Supported Audio Format

PCM via encapsulation


2048 x 2048 channel router
Channel and stream swapping


Standard RollCall Interface
IP Routing Controller (spigot and internal cross point configuration)



Standard RollCall logging and reporting

Form Factor

1 RU
Linux 64-bit (RAID-1)
700W/750W redundant PSU


Auto, user defined primary/secondary input streams
Input timestamp realignment to ref



Dual 10 GbE Interface



Audio Live Turnkey Solution (10 Gb) 1x Audio Live license + hardware
Complete solution to enable 2048x2048 audio routing of AES67 IP streams. Includes dual 10 GbE SFP+ network interface card



Audio Live: Audio Router for Live Multistream IP Audio Processing Datasheet

Audio Live is an immensely powerful audio router providing high-density audio stream- and channel-based routing in a compact 1 RU turnkey solution.



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