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User Manual for ALP442e & ALP442e-MIC
outputs and software recording devices.
"ALP-X Manager" application installed with the driver, to control the card settings:
●
- clock source (internal, wordclock, AES11, AES3 input)
- frequency of the fallback internal clock
- input and output gains and VU-meters
- 48V phantom power switches (for -MIC cards)
- routing of inputs to outputs
API for implementing the management of the card settings in a software application.
●
4.3 Routing audio streams in the card
The ALP cards incorporate an on-board mixer in an FPGA component.
On ALP442e and ALP442e-MIC, this is a mixer with 16 mono inputs (8 stereo) and 16 mono
outputs (8 stereo). The mixer captures the physical input channels of the card (4 analog
channels and 4 AES3 channels) and the 8 channels of the playback devices.
The mixer restores 16 audio channels, respectively to the 8 physical outputs of the card (4
analog channels and 4 AES3 channels) and the 8 recording device channels.
The mixer can therefore be configured to perform the mixing and the routing of the 16 input
channels to the 16 output channels (16 mix sums).
4 analog input
ch.
4 analog output
ch.
ALP882e & ALP882e-MIC
,
4 digital input ch.
16 x 16 on-board
mixer
(16 mix sums)
4 digital output
ch.
ALP442e & ALP442e-
MIC
8 DAW playback channels
8 DAW recording channels
8
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