Getting started - Interface configuration and flashing firmware

[introlab]

Getting started - Interface configuration and flashing firmware

[seanernestmurray]

I believe I figured out most of the issues listed above.

For real-time data, a soundcard interface may be specified in the 'raw' section of the .cfg file. This is outlined below - no firmware needs to be flashed for this.

raw:
{
    fS = 44100;
    hopSize = 512;
    nBits = 32;
    nChannels = 16;

    # Input with raw signal from microphones
    interface: {
        type = "soundcard";
        card = 2;
        device = 0;
    }
}

One small point to note is that in order to run ALSA with the board, the PC must not be registering the input as an active audio source - i.e. audio input from the board should be disabled in general settings before trying to access the audio data in ODAS. (This may be an obvious troubleshoot, but a speedbump nevertheless.)

[doumdi]

@seanernestmurray. Happy you got the system working. You are right, there is no need to flash the sound card firmware. The procedure you found is for flashing the firmware the first time, when people build the PCB themselves. The best way to get started is with sample configurations. Here is one with 16 inputs : https://github.com/introlab/odas/blob/master/config/odaslive/azimut_oma.cfg

For ODAS questions, It would be better to fill issues here : https://github.com/introlab/odas/issues or here : https://github.com/introlab/odas_web

Depending on your Linux configuration and if 16SoundsUSB is your only sound card in the system, it is possible that the sound card was already opened by another process. Thanks for sharing this problem with us.

Regards,

Dominic

[seanernestmurray]

Thanks Dominic!