FSE-8241-E is an HD/SD-SDI frame synchronizer and Dolby E encoder with 16-channel of audio embedding or de-embedding. The Dolby E encoder receives different audio sources, from either embedded or discrete inputs and produces an encoded Dolby pair using either received external metadata or internally generated metadata that can be user-defined using the encoder controls. The encoded pair can be sent from the card as embedded audio or over discrete AES-3id connections as a SMPTE 337M-formatted non-PCM signal.