Hello everyone,

I have a task to setup a system that will continuously capture stereo signals using HDSPe MADI and write them into files (perhaps in 1 hour chunks). I have a linux setup and ALSA seems to recognize and drive the card just fine.

I'm new to all these sound module/framework thing, so I'm hoping I could get some guidance how to achieve this the simplest (and reliable) way possible.

So far, I read about arecord and ffmpeg, none of them seems to work just yet (I'm sure I missed something, so let's discuss what could it be). Maybe I can start with the output of "arecord -l"
support-win:~ # arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
  Subdevices: 3/3
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
  Subdevice #2: subdevice #2
card 1: Default [RME MADI_33d402], device 0: RME MADI [RME MADI]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

Or is it simpler to achieve this via few lines of code using ALSA API?

Please help. Thank you in advance.