WSPR: Rekam WSPR Audio

If I'm not wrong, then I guess you are talking about recording "Stereo Mix" or loopback Output.

   In layman's terms, Recording Stereo Mix means recording sound from speaker output.

Here's how to do it:

1. Install pavucontrol from Ubuntu Software Center.
2. Install audacity from Ubuntu Software Center.
3. Select pulse* as recording device in Audacity.
4. Click Record Button.
5. Open PulseAudio Volume Control (Search For PulseAudio Volume Control in Dash).
6. Select Recording Tab.
7. Now You Should see ALSA plug-in [audacity]. If you do not see ALSA plug-in [audacity], make sure you have clicked Record Button in audacity. You should be running recording in audacity while performing next step.
8. Select "Monitor from *". See screen shot.

Pastikan

• sampling rate 16000 Hz.
• audio channels Mono.
• PCM format as PCM unsigned 8-bit.

Untuk Yang Iseng

aplay -l

**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC887-VD Analog [ALC887-VD Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 7: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 9: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

ls /dev/snd/

by-path    controlC1  hwC1D0  hwC1D2  pcmC0D0c  pcmC0D2c  pcmC1D7p  pcmC1D9p  timer
controlC0  hwC0D0     hwC1D1  hwC1D3  pcmC0D0p  pcmC1D3p  pcmC1D8p  seq