Difference between revisions of "Talk:HFDY Malahit DSP SDR v3"

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(arecord loopback solution)
(Malachite DSP - SDR Radio Receiver - Firmware: new section)
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This will help with the latency:  
 
This will help with the latency:  
 
  arecord --buffer-time=1 - | aplay --buffer-time=1 -
 
  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

Revision as of 19:42, 11 November 2023

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