Linear Acoustic enhances AXON’s Synapse
January 7, 2009
AXON’s modular infrastructure and communications system, Synapse, will be enhanced with DTV audio loudness management and stereo to 5.1 upmix algorithms designed by Linear Acoustic.
To fix inconsistent DTV audio loudness (or the so-called “loud commercial problem”), Linear Acoustic developed the AEROMAX 5.1-channel loudness and dynamic range control. AXON will incorporate the functions of this, plus the UPMAX upmixing algorithm with AutoMAX-II, into its Synapse modular system on two different platforms. AXON will show this new module at NAB2009. Control of all parameters will be available through AXON’s monitoring and control software, Cortex.
The new unit will accept four pairs of PCM audio to handle two-channel to 5.1-channel audio programming and a bypass input. Multiband, multistage loudness control and selectable upmixing can be applied to the input audio resulting in smooth, consistent audio that can be 5.1 channels all the time. Another Synapse card will perform the same features in the embedded SD, HD or 3Gb/s domain. A full-time LtRt or LoRo downmix version of the main program is provided as the fourth AES output pair. For more information, visit
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