When working in conjunction with a video card, the AAP-1741 can be used for dynamic processing, up or down mixing or to embed audio into the video signal. Two audio processing cards can be combined together to process more discreet audio channels.
When combining two cards together, all of the audio processing is synchronous and kept in phase ensuring proper alignment and matched delay. A ribbon connector carrying audio, timing signals and metadata links the card(s).
The audio processor features two distinct processing blocks of input and output. The input processing includes gain, video tracking delay, additional fixed delay and phase correction. The output processing block includes mixing, an additional gain/attenuation stage and full channel shuffling. The 2- or 4-channel mixing block is particularly powerful, allowing each output channel to be composed of a mix of any two or four audio channels. This provides capability for stereo to mono downmixes, voiceovers, descriptive mixing and custom-mix operations.
