Recording Computer Playback on Linux Issue

[willypuzzle]

I would follow this tutorial http://manual.audacityteam.org/man/Tuto ... k_on_Linux

I assured PulseAudio runs with:

Code: Select all

$pstree -p | grep pulse
        |-pulseaudio(2354)-+-gconf-helper(2366)
        |                  |-{pulseaudio}(2362)
        |                  |-{pulseaudio}(2363)
        |                  `-{pulseaudio}(2365)

but when I try to set "pulse" on Device Toolbar it doesn't appear.
Instead voices as "pulse: Rear Mic: 0" or "pulse: Front Mic:0" appear.
but not "pulse" or "default" ...

Do you have any idea?

[steve]

Please post the output from "Help > Audio Device Info"

[willypuzzle]

Code: Select all

==============================
Default capture device number: 14
Default playback device number: 14
==============================
Device ID: 0
Device name: HDA NVidia: ALC861 Analog (hw:0,0)
Host name: ALSA
Input channels: 2
Output channels: 8
Low Input Latency: 0.010667
Low Output Latency: 0.010667
High Input Latency: 0.042667
High Output Latency: 0.042667
Supported Rates:
    48000
    96000
==============================
Device ID: 1
Device name: HDA NVidia: ALC861 Digital (hw:0,1)
Host name: ALSA
Input channels: 0
Output channels: 2
Low Input Latency: -1.000000
Low Output Latency: 0.010667
High Input Latency: -1.000000
High Output Latency: 0.042667
Supported Rates:
    48000
    96000
==============================
Device ID: 2
Device name: HDA ATI HDMI: HDMI 0 (hw:1,3)
Host name: ALSA
Input channels: 0
Output channels: 2
Low Input Latency: -1.000000
Low Output Latency: 0.010667
High Input Latency: -1.000000
High Output Latency: 0.042667
Supported Rates:
    48000
==============================
Device ID: 3
Device name: sysdefault
Host name: ALSA
Input channels: 128
Output channels: 128
Low Input Latency: 0.042653
Low Output Latency: 0.042653
High Input Latency: 0.046440
High Output Latency: 0.046440
Supported Rates:
    8000
    9600
    11025
    16000
    22050
    32000
    44100
    48000
    88200
==============================
Device ID: 4
Device name: front
Host name: ALSA
Input channels: 0
Output channels: 8
Low Input Latency: -1.000000
Low Output Latency: 0.010667
High Input Latency: -1.000000
High Output Latency: 0.042667
Supported Rates:
    48000
    96000
==============================
Device ID: 5
Device name: surround40
Host name: ALSA
Input channels: 0
Output channels: 8
Low Input Latency: -1.000000
Low Output Latency: 0.010667
High Input Latency: -1.000000
High Output Latency: 0.042667
Supported Rates:
    48000
    96000
==============================
Device ID: 6
Device name: surround41
Host name: ALSA
Input channels: 0
Output channels: 128
Low Input Latency: -1.000000
Low Output Latency: 0.010667
High Input Latency: -1.000000
High Output Latency: 0.042667
Supported Rates:
    48000
    96000
==============================
Device ID: 7
Device name: surround50
Host name: ALSA
Input channels: 0
Output channels: 128
Low Input Latency: -1.000000
Low Output Latency: 0.010667
High Input Latency: -1.000000
High Output Latency: 0.042667
Supported Rates:
    48000
    96000
==============================
Device ID: 8
Device name: surround51
Host name: ALSA
Input channels: 0
Output channels: 8
Low Input Latency: -1.000000
Low Output Latency: 0.010667
High Input Latency: -1.000000
High Output Latency: 0.042667
Supported Rates:
    48000
    96000
==============================
Device ID: 9
Device name: surround71
Host name: ALSA
Input channels: 0
Output channels: 8
Low Input Latency: -1.000000
Low Output Latency: 0.010667
High Input Latency: -1.000000
High Output Latency: 0.042667
Supported Rates:
    48000
    96000
==============================
Device ID: 10
Device name: iec958
Host name: ALSA
Input channels: 0
Output channels: 2
Low Input Latency: -1.000000
Low Output Latency: 0.010667
High Input Latency: -1.000000
High Output Latency: 0.042667
Supported Rates:
    48000
    96000
==============================
Device ID: 11
Device name: spdif
Host name: ALSA
Input channels: 0
Output channels: 2
Low Input Latency: -1.000000
Low Output Latency: 0.010667
High Input Latency: -1.000000
High Output Latency: 0.042667
Supported Rates:
    48000
    96000
==============================
Device ID: 12
Device name: pulse
Host name: ALSA
Input channels: 32
Output channels: 32
Low Input Latency: 0.011610
Low Output Latency: 0.011610
High Input Latency: 0.046440
High Output Latency: 0.046440
Supported Rates:
    8000
    9600
    11025
    12000
    15000
    16000
    22050
    24000
    32000
    44100
    48000
    88200
    96000
    192000
==============================
Device ID: 13
Device name: dmix
Host name: ALSA
Input channels: 0
Output channels: 2
Low Input Latency: -1.000000
Low Output Latency: 0.042667
High Input Latency: -1.000000
High Output Latency: 0.042667
Supported Rates:
    48000
==============================
Device ID: 14
Device name: default
Host name: ALSA
Input channels: 32
Output channels: 32
Low Input Latency: 0.011610
Low Output Latency: 0.011610
High Input Latency: 0.046440
High Output Latency: 0.046440
Supported Rates:
    8000
    9600
    11025
    12000
    15000
    16000
    22050
    24000
    32000
    44100
    48000
    88200
    96000
    192000
==============================
Selected capture device: 14 - default
Selected playback device: 14 - default
Supported Rates:
    8000
    9600
    11025
    12000
    15000
    16000
    22050
    24000
    32000
    44100
    48000
    88200
    96000
    192000
==============================
Available mixers:
==============================
Available capture sources:
0 - Rear Mic:0
1 - Front Mic:0
2 - Line:0
3 - CD:0
==============================
Available playback volumes:
0 - PCM:0
1 - CD:0
2 - Beep:0
==============================

Capture volume is native
Playback volume is native

[steve]

Device ID: 12
Device name: pulse

That should be available in the Device Toolbar

[willypuzzle]

It's not among input devices. It's only available between output devices.
I attached a screenshots about it.

[steve]

You may need to edit your .asoundrc file.
Which Linux distribution are you using?
Is PulseAudio installed by default or did you have to install it yourself?
Do you have a (hidden) file called .asoundrc in your home folder?

[willypuzzle]

I have to edit, how?
I use Ubuntu precise 12.04 with xfce4
PulseAudio is installed by default.
I don't have .asoundrc file in my home folder ...

[steve]

Open a Terminal window and enter:

Code: Select all

alsamixer

Then press the F4 key.
If possible, please post a screenshot (otherwise, please describe what is shown).

[willypuzzle]

Ok.

NOTE:
As <Input Source> I have two choices, Line (in the picture) and CD (not in the picture)

[steve]

Interesting. When PulseAudio is properly installed it should be the default "sound card", but on your system it clearly isn't.

This is my .asoundrc file, try it on your machine - if it works, great, if it doesn't you can easily delete it again:

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pcm.pulse {
    type pulse
}
ctl.pulse {
    type pulse
}
pcm.!default {
    type pulse
}
ctl.!default {
    type pulse
}

# Virtual monitor "pulse"
pcm.StereoMix {
type pulse
device alsa_output.pci-0000_00_1b.0.analog-stereo.monitor
}

ctl.StereoMix {
type pulse
device alsa_output.pci-0000_00_1b.0.analog-stereo.monitor
}

Copy and paste the above into a new file in your home directory, then name it ".asoundrc" (without quotes but with the leading dot).
Reboot the computer.
Then run the following and post the output:

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pacmd
list-sources

The first command starts a simple command line program for communicating with PulseAudio.
The second command asks PulseAudio to list all recording devices.
To quite from pacmd use Ctrl+C