The AMX-1901 is an advanced high-quality 24-bit 48 kHz analog audio embedder designed to insert up to eight analog audio signals into a 3G/HD/SD video signal. The AMX-1901 can process the eight audio input channels with functions including level, channel shuffling and mixing. Options include Automatic Loudness Control and dynamic processing (limiter, compressor and expander).

The AMX-1901 can embed longitudinal timecode (LTC) as ancillary timecode (ATC) in 3G/HD and DVITC in SD. Up to two GPIO can be used as input to embed GPI events to the timecode user bits in transport applications. Audio metadata insertion in the VANC is possible from an embedded VANC stream or an external RS-422 link.