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Re: [orca-list] Recording audio from the soundcard

The content of ""pactl" is not very easy to understand. For this reason, I try:

parec -d 0 > output.wav
parec -d 1 > output.wav
parec -d 2 > output.wav

The generated wave failed in all cases. I can't understand the meaning
of "pactl" contents. In spite of this, I could not find the word
"pulse audio", but only "alsa". If Gstreamer handles with Alsa, so
it's explainable why could be successful at least once.

I am not sure if I use pulseaudio or Alsa. I have installed the
standard version of Ubuntu 13.10 and Orca is that coming with this
distro. However, thinking about the results got up to now, it seems
more probably that I use Alsa. Actually, I can neither say that I
understand what is Pulse Audio or Alsa. I know only this things are
important for the sound. I don't know anything else. Perhaps, becose
of it, I can't say more precisly information.

But, the results up to know is: "parec" did not work in all cases.
"gst-launch" worked, but stoped to work after the computer restarting
and, sometimes, in the midle of the section.

Bellow, it's the output of "pactl" command:

Fonte #0

        Estado: SUSPENDED
        Nome: alsa_output.pci-0000_01_00.1.hdmi-stereo.monitor
        Descrição: Monitor of Redwood HDMI Audio [Radeon HD 5000 Series]
Digital Stereo (HDMI)
        Driver: module-alsa-card.c
        Especificação da amostragem: s16le 2ch 44100Hz
        Mapa dos canais: front-left,front-right
        Módulo proprietário: 5
        Mudo: no
        Volume: 0: 100% 1: 100%
                0: 0,00 dB 1: 0,00 dB
                balanço 0,00
        Volume base: 100%
                     0,00 dB
        Monitor do destino: alsa_output.pci-0000_01_00.1.hdmi-stereo
        Latência: 0 usec, 0 usec configurado
        Sinalizadores: DECIBEL_VOLUME LATENCY
        Propriedades:
                device.description = "Monitor of Redwood HDMI Audio [Radeon HD 5000
Series] Digital Stereo (HDMI)"
                device.class = "monitor"
                alsa.card = "1"
                alsa.card_name = "HD-Audio Generic"
                alsa.long_card_name = "HD-Audio Generic at 0xfbdbc000 irq 46"
                alsa.driver_name = "snd_hda_intel"
                device.bus_path = "pci-0000:01:00.1"
                sysfs.path = "/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1"
                device.bus = "pci"
                device.vendor.id = "1002"
                device.vendor.name = "Advanced Micro Devices, Inc. [AMD/ATI]"
                device.product.id = "aa60"
                device.product.name = "Redwood HDMI Audio [Radeon HD 5000 Series]"
                device.string = "1"
                module-udev-detect.discovered = "1"
                device.icon_name = "audio-card-pci"
        Formatos:
                pcm

Fonte #1
        Estado: IDLE
        Nome: alsa_output.pci-0000_00_1b.0.analog-stereo.monitor
        Descrição: Monitor of Áudio interno Estéreo analógico
        Driver: module-alsa-card.c
        Especificação da amostragem: s16le 2ch 44100Hz
        Mapa dos canais: front-left,front-right
        Módulo proprietário: 6
        Mudo: no
        Volume: 0: 100% 1: 100%
                0: 0,00 dB 1: 0,00 dB
                balanço 0,00
        Volume base: 100%
                     0,00 dB
        Monitor do destino: alsa_output.pci-0000_00_1b.0.analog-stereo
        Latência: 0 usec, 371519 usec configurado
        Sinalizadores: DECIBEL_VOLUME LATENCY
        Propriedades:
                device.description = "Monitor of Áudio interno Estéreo analógico"
                device.class = "monitor"
                alsa.card = "0"
                alsa.card_name = "HDA Intel MID"
                alsa.long_card_name = "HDA Intel MID at 0xfbcf8000 irq 44"
                alsa.driver_name = "snd_hda_intel"
                device.bus_path = "pci-0000:00:1b.0"
                sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
                device.bus = "pci"
                device.vendor.id = "8086"
                device.vendor.name = "Intel Corporation"
                device.product.id = "3b56"
                device.product.name = "5 Series/3400 Series Chipset High Definition Audio"
                device.form_factor = "internal"
                device.string = "0"
                module-udev-detect.discovered = "1"
                device.icon_name = "audio-card-pci"
        Formatos:
                pcm

Fonte #2
        Estado: SUSPENDED
        Nome: alsa_input.pci-0000_00_1b.0.analog-stereo
        Descrição: Áudio interno Estéreo analógico
        Driver: module-alsa-card.c
        Especificação da amostragem: s16le 2ch 44100Hz
        Mapa dos canais: front-left,front-right
        Módulo proprietário: 6
        Mudo: no
        Volume: 0:  14% 1:  14%
                0: -51,00 dB 1: -51,00 dB
                balanço 0,00
        Volume base:  10%
                     -60,00 dB
        Monitor do destino: n/a
        Latência: 0 usec, 0 usec configurado
        Sinalizadores: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY
        Propriedades:
                alsa.resolution_bits = "16"
                device.api = "alsa"
                device.class = "sound"
                alsa.class = "generic"
                alsa.subclass = "generic-mix"
                alsa.name = "ALC888 Analog"
                alsa.id = "ALC888 Analog"
                alsa.subdevice = "0"
                alsa.subdevice_name = "subdevice #0"
                alsa.device = "0"
                alsa.card = "0"
                alsa.card_name = "HDA Intel MID"
                alsa.long_card_name = "HDA Intel MID at 0xfbcf8000 irq 44"
                alsa.driver_name = "snd_hda_intel"
                device.bus_path = "pci-0000:00:1b.0"
                sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
                device.bus = "pci"
                device.vendor.id = "8086"
                device.vendor.name = "Intel Corporation"
                device.product.id = "3b56"
                device.product.name = "5 Series/3400 Series Chipset High Definition Audio"
                device.form_factor = "internal"
                device.string = "front:0"
                device.buffering.buffer_size = "65536"
                device.buffering.fragment_size = "32768"
                device.access_mode = "mmap+timer"
                device.profile.name = "analog-stereo"
                device.profile.description = "Estéreo analógico"
                device.description = "Áudio interno Estéreo analógico"
                alsa.mixer_name = "Realtek ALC888"
                alsa.components = "HDA:10ec0888,103c2a9c,00100202"
                module-udev-detect.discovered = "1"
                device.icon_name = "audio-card-pci"
        Portas:
                analog-input-microphone-front: Microfone frontal (priority: 8500,
not available)
                analog-input-microphone-rear: Microfone traseiro (priority: 8200,
not available)
                analog-input-linein: Entrada de linha (priority: 8100, not available)
        Porta ativa: analog-input-linein
        Formatos:
                pcm


2014/1/13, lsmithso hare demon co uk <lsmithso hare demon co uk>:


Hi: If you are running pulseaudio (the default for vinux I believe),
then the command "parec" may be easier to understand.

parec -d 1 > recording.wav

Records from the sound card on my system. You may have to change the
value of the -d arg to suit your hardware. It will be a small integer
starting at 0.  You can guess this, or you can be more scientific and
use:

pactl list sources



Another way to do this is with gstreamer:

gst-launch pulsesrc device=1  ! autoaudiosink

Will connect the mic to the default sound output device.  You can also
record with gstreamer:

gst-launch pulsesrc device=1 ! wavenc ! filesink
location=recording.wav





luciano de souza writes:


 > If amixer is configured, I think I could record with arecord explained
at:
 >
http://carthick.wordpress.com/2007/11/26/linux-recording-soundcard-output-using-arecord/
 >
 > A command to record 10 seconds could be:
 >
 > arecord -d 10 -f cd -t wav -D copy foobar.wav
 >
 > The problem is that I don't understand the language of manuals.
 > "amixer scontrols" list the controls, but what Is called control?
 > Well, the answer was
 >
 > Simple mixer control 'Master',0
 > Simple mixer control 'Headphone',0
 > Simple mixer control 'PCM',0
 > Simple mixer control 'Front',0
 > Simple mixer control 'Front Mic',0
 > Simple mixer control 'Front Mic Boost',0
 > Simple mixer control 'Surround',0
 > Simple mixer control 'Center',0
 > Simple mixer control 'LFE',0
 > Simple mixer control 'Side',0
 > Simple mixer control 'Line',0
 > Simple mixer control 'Line Boost',0
 > Simple mixer control 'IEC958',0
 > Simple mixer control 'IEC958 Default PCM',0
 > Simple mixer control 'Capture',0
 > Simple mixer control 'Capture',1
 > Simple mixer control 'Auto-Mute Mode',0
 > Simple mixer control 'Input Source',0
 > Simple mixer control 'Input Source',1
 > Simple mixer control 'Rear Mic',0
 > Simple mixer control 'Rear Mic Boost',0
 >
 > I don't understand what it means. But it points out the word
 > "Capture". Perhaps, 'Capture',0 and 'Capture',1 is two channels of
 > recording. I don't know any characteristics of my soundcard. Actually,
 > when I wanted to record, I expected two find an application with two
 > buttons: Record from the microphone, Record from the soundcard.
 >
 > Navigating from Internet, I found the command:
 >
 > amixer sget 'Input source',0
 >
 > I don't know what is 'Input source',0, but I tried to do:
 >
 > amixer sget 'Capture',0
 >
 > My hopeness is that command changed my Alsa settings to record from
 > the soundcard, but after doing "arecord -d 10 -f cd -t wav -D copy
 > foobar.wav", the file generated remained empty.
 >
 > Even if I understand the words of the amixer manual, I can't
 > understand the meaning of it. My all experiance was to record sounds
 > from the microphone and the soundcard with an Windows application, but
 > the name of options was something like "Record from microphone" and
 > "Record from soundcard".
 >
 > The difficulties are terible: I don't understand about sound settings,
 > about Alsa, my english is not very well, I don't know very much about
 > shellscript... Would be there a more simpler way to a beginer as me
 > recording sounds from the soundcard?
 >
 > If the interface of Audio-Mixer was accessible, I could use
 > Audio-Record and to do everything with graphical interfaces.
 >
 > 2014/1/11, Jason White <jason jasonjgw net>:
 > > luciano de souza <luchyanus gmail com> wrote:
 > >> Does someone have a tip to record sounds from the soundcard using
 > >> terminal or a graphical application?
 > >> I have certain preference to do it by means of terminal, but any tip
is
 > >> welcome!
 > >
 > > You could just use amixer or alsamixer to configure the input volume
of
 > > your
 > > audio device. Amixer is a command line tool; alsamixer is a terminal
 > > application. For recording, have a look at ecasound and read its
 > > documentation
 > > to find out whether it will meet your requirements.
 > >
 > > If you're using Pulse Audio, volume levels can be configured with
pacmd
 > > from
 > > your shell prompt. I'm sure there are volume controls in GNOME as
well,
 > > which
 > > Orca should be able to access. Under Pulse Audio, the microphone input
is
 > > referred to as a "source", whereas the audio output is referred to as
a
 > > "sink". Thus you would need to use the list-sources command first,
obtain
 > > the
 > > index number of your microphone, then use set-source-volume to adjust
it -
 > > see
 > > the pulse-cli-syntax(5) manual page.
 > >
 > > _______________________________________________
 > > orca-list mailing list
 > > orca-list gnome org
 > > https://mail.gnome.org/mailman/listinfo/orca-list
 > > Visit http://live.gnome.org/Orca for more information on Orca.
 > > The manual is at
 > > http://library.gnome.org/users/gnome-access-guide/nightly/ats-2.html
 > > The FAQ is at http://live.gnome.org/Orca/FrequentlyAskedQuestions
 > > Log bugs and feature requests at http://bugzilla.gnome.org
 > > Find out how to help at http://live.gnome.org/Orca/HowCanIHelp
 > >
 >
 >
 > --
 > Luciano de Souza
 > _______________________________________________
 > orca-list mailing list
 > orca-list gnome org
 > https://mail.gnome.org/mailman/listinfo/orca-list
 > Visit http://live.gnome.org/Orca for more information on Orca.
 > The manual is at
http://library.gnome.org/users/gnome-access-guide/nightly/ats-2.html
 > The FAQ is at http://live.gnome.org/Orca/FrequentlyAskedQuestions
 > Log bugs and feature requests at http://bugzilla.gnome.org
 > Find out how to help at http://live.gnome.org/Orca/HowCanIHelp

--
Les Smithson




-- 
Luciano de Souza
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