udevadm monitor --udev
UDEV [2694854.579440] add /devices/pci0000:00/0000:00:14.0/usb3/3-8 (usb) UDEV [2694854.581532] add /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.0 (usb) UDEV [2694854.582363] add /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.1 (usb) UDEV [2694854.583661] add /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.4 (usb) UDEV [2694854.583712] bind /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.1 (usb) UDEV [2694854.585775] add /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.7 (usb) UDEV [2694854.586332] bind /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.4 (usb) UDEV [2694854.586883] add /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.3 (usb) UDEV [2694854.587373] add /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.4/sound/card3 (sound) UDEV [2694854.588103] add /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.8 (usb) UDEV [2694854.589202] add /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.5 (usb) UDEV [2694854.589782] bind /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.7 (usb) UDEV [2694854.590661] bind /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.8 (usb) UDEV [2694854.591587] add /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.6 (usb) UDEV [2694854.591845] bind /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.5 (usb) UDEV [2694854.593383] add /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.4/sound/card3/pcmC3D0p (sound) UDEV [2694854.593898] add /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.9 (usb) UDEV [2694854.595263] add /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.4/sound/card3/pcmC3D0c (sound) UDEV [2694854.596698] bind /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.9 (usb) UDEV [2694854.596788] bind /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.3 (usb) UDEV [2694854.597689] bind /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.6 (usb) UDEV [2694854.598451] add /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.2 (usb) UDEV [2694854.599937] add /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.4/sound/card3/pcmC3D1c (sound) UDEV [2694854.607494] add /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.0/tty/ttyACM0 (tty) UDEV [2694854.609443] bind /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.0 (usb) UDEV [2694854.619933] add /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.4/sound/card3/controlC3 (sound) UDEV [2694854.620752] add /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.2/tty/ttyACM1 (tty) UDEV [2694854.626303] bind /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.2 (usb) UDEV [2694854.629831] bind /devices/pci0000:00/0000:00:14.0/usb3/3-8 (usb) UDEV [2694854.631745] change /devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.4/sound/card3 (sound)
arecord loopback solution
Simple solution Just use:
arecord -f cd - | aplay -
If you wanna play while saving:
arecord -f cd - | tee output.wav | aplay -
This will help with the latency:
arecord --buffer-time=1 - | aplay --buffer-time=1 -
Malachite DSP - SDR Radio Receiver - Firmware
https://linuxslate.com/cgi-bin/forum/YaBB.pl?num=1595619341/4#4
Malachite DSP - SDR Radio Receiver (Read 160339 times)
https://linuxslate.com/cgi-bin/forum/YaBB.pl?num=1595619341/4#4