Comment 5 for bug 1671931

Hello,
Very good. Now you have the recording command. Let us test it in a
terminal window (command line).

0) Open a terminal window (for example, press: CNTR + ALT + t)

1) First, install gstreamer1.0-tools package. The gst-launch-1.0 command
comes from that package.
Run this command:
*sudo apt install gstreamer1.0-tools*

2) Now test the Gstreamer-pipeline.
Run your recording command (be careful not to break it. It is one, long
line).
Notice: the command will record to (output to)* test.mp3 *file.

*gst-launch-1.0 -e
pulsesrc device=alsa_input.pci-0000_00_12.2-usb-0_3.analog-stereo ! queue
! audioresample ! audioconvert ! audio/x-raw,rate=44100,channels=2
! lamemp3enc name=enc target=0 quality=2 ! xingmux ! id3mux !
filesink location=test.mp3*

Now check if the output test.mp3 has content. Re-play it. Play it in a
video player (totem).
*totem test.mp3*

Hope this will clarify if the recording works or not.
---

Looks like the devices (in the list) are found and are ok.
Looks like the Gstreamer pipeline (recording command() is ok.

You may also add a "*volume*" element to the pipeline. It increases or
decreases the volume/audio level (0.1 ... 10) of the recording.
Ref:
https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-plugins/html/gst-plugins-base-plugins-volume.html
With the "volume" element, the command becomes:

*gst-launch-1.0 -e
pulsesrc device=alsa_input.pci-0000_00_12.2-usb-0_3.analog-stereo ! ** volume
volume=6 ! **queue ! audioresample ! audioconvert !
audio/x-raw,rate=44100,channels=2 ! lamemp3enc name=enc target=0 quality=2
! xingmux ! id3mux ! filesink location=test.mp3*

Again, replay the test3.mp3 file to check.

Check also the audio (input) settings.
Please see: http://bildr.no/view/QUhPa0Jh
Start it from the sound-menu (icon). Check the input level (is it muted or
low?)

There are also the "pacmd" and "pactl" commands that can do magical things.
I do not know`em well.
*pacmd --help*

*pactl --help*

Please report your findings.

On Sun, Mar 12, 2017 at 4:01 AM, Bryan Castillo <email address hidden>
wrote:

> pactl list | grep -A3 'Source #'Source #0
> State: IDLE
> Name: alsa_output.pci-0000_00_01.1.hdmi-surround.monitor
> Description: Monitor of Built-in Audio Digital Surround 5.1 (HDMI)
> --
> Source #1
> State: SUSPENDED
> Name: alsa_input.pci-0000_00_12.2-usb-0_3.analog-stereo
> Description: USBTV007 Video Grabber [EasyCAP] Analog Stereo
> --
> Source #2
> State: SUSPENDED
> Name: alsa_output.pci-0000_00_14.2.analog-stereo.monitor
> Description: Monitor of Built-in Audio Analog Stereo
> --
> Source #3
> State: SUSPENDED
> Name: alsa_input.pci-0000_00_14.2.analog-stereo
> Description: Built-in Audio Analog Stereo
>
> On Fri, Mar 10, 2017 at 5:03 PM, moma <email address hidden> wrote:
>
> > Please reply and copy/paste the device list (pactl list...) and
> > Gstreamer-pipeline here.
> >
> > --
> > You received this bug notification because you are subscribed to the bug
> > report.
> > https://bugs.launchpad.net/bugs/1671931
> >
> > Title:
> > Ezcap as Audio source no sound detected by audio-recorder app
> >
> > Status in Audio Recorder:
> > New
> >
> > Bug description:
> > I am using the ezcap audio line-in for audio source. Pulse audio
> > detects sound input by looking at the vu meter on pulse audio,
> > audacity records audio, vlc plays audio to speakers.
> >
> > Audio-recorder detects as sound source and can be selected as usb
> > ezcap mic input but no sound is detected by audio-recorder as evidence
> > by no vu meter activity and when clicking record, no sound is
> > recorded.
> >
> >
> > Thank you
> >
> > To manage notifications about this bug go to:
> > https://bugs.launchpad.net/audio-recorder/+bug/1671931/+subscriptions
> >
>
> --
> You received this bug notification because you are a bug assignee.
> https://bugs.launchpad.net/bugs/1671931
>
> Title:
> Ezcap as Audio source no sound detected by audio-recorder app
>
> Status in Audio Recorder:
> New
>
> Bug description:
> I am using the ezcap audio line-in for audio source. Pulse audio
> detects sound input by looking at the vu meter on pulse audio,
> audacity records audio, vlc plays audio to speakers.
>
> Audio-recorder detects as sound source and can be selected as usb
> ezcap mic input but no sound is detected by audio-recorder as evidence
> by no vu meter activity and when clicking record, no sound is
> recorded.
>
>
> Thank you
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/audio-recorder/+bug/1671931/+subscriptions
>

--
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