[IDEA] Alternative input option.

[DRONE7]

Hi Tim,

With help and advice from phofman over on  DIY-audio  I have managed to get this ADC working with Raspberry Pi OS (32-bit) Lite.

https://www.audiophonics.fr/en/devices-h...13351.html

https://www.diyaudio.com/forums/pc-based...79062.html

As an alternative to the HiFiBerry DAC+ADC without the DAC ;-)


Wondering what command is used to enable the ADC for the HFB card as an input and if it would mesh with  arecord used so far on this one ? :-)

Happy to experiment..

bob.

[Tim Curtis]

I think it's always available
https://www.hifiberry.com/docs/hardware/...e-dac-adc/

Prolly just arecord -c 0 or whatever card is assigned by ALSA to the Analog in. You can check the card assignment by arecord -l

In moOde's code the command alsaloop is used (without any options) to route input to output. There are no cmd line options because IIRC this device defaults to card0 for capture and card1 for playback which are defaults for alsaloop. Something like that.

[DRONE7]

I think it's always available
https://www.hifiberry.com/docs/hardware/...e-dac-adc/

Prolly just arecord -c 0 or whatever card is assigned by ALSA to the Analog in. You can check the card assignment by arecord -l

In moOde's code the command alsaloop is used (without any options) to route input to output. There are no cmd line options  because IIRC this device defaults to card0 for capture and card1 for playback which are defaults for alsaloop. Something like that.

I will give that a try.. I'm currently experimenting with the board as an LP ripping device :-)

I had thought to pipe the arecord input from the ADC to aplay and output to the USB DAC.

When I get the time I will check the card configurations and see if this will work.

If it does, and there is enough interest in the future, then maybe a toggle in the UI for this..?  (Something to leave bubbling on the back-burner ;-) )

Cheers,
Bob