I have run "arecord -D plughw:1,0 -c 2 -r 48000 | aplay". How do you stop it ?. Is "arecord -D plughw:1,0 -c 2 -r 48000 | aplay" correct?. I ask you it because to stop "arecord -D plughw:1,0 -c 2 -r 48000 | aplay" I've tried "Ctrl z", but to return everything to the beginning I need to reload alsa (as root) with "alsa force-reload".
You can try to reload alsa (as root) with "alsa force-reload" instead of restarting the whole system.
José Luis
El lun, 12-11-2012 a las 12:22 +0000, alsa-user-request@xxxxxxxxxxxxxxxxxxxxx escribió:
Send Alsa-user mailing list submissions to alsa-user@xxxxxxxxxxxxxxxxxxxxx To subscribe or unsubscribe via the World Wide Web, visit https://lists.sourceforge.net/lists/listinfo/alsa-user or, via email, send a message with subject or body 'help' to alsa-user-request@xxxxxxxxxxxxxxxxxxxxx You can reach the person managing the list at alsa-user-owner@xxxxxxxxxxxxxxxxxxxxx When replying, please edit your Subject line so it is more specific than "Re: Contents of Alsa-user digest..." Today's Topics: 1. Re: how to make all 8 channels play in a USB sound card ? (Sergei Steshenko) 2. Re: alsa arecord works then stops working - Re: alsa capture works then stops working (Paul Homlish) ---------------------------------------------------------------------- Message: 1 Date: Mon, 12 Nov 2012 04:01:08 +0400 From: Sergei Steshenko <steshenko_sergei@xxxxxxx> Subject: Re: how to make all 8 channels play in a USB sound card ? To: Clemens Ladisch <cladisch@xxxxxxxxxxxxxx> Cc: alsa-user@xxxxxxxxxxxxxxxxxxxxx Message-ID: <1352678468.807718327@xxxxxxxxxxx> Content-Type: text/plain; charset=utf-8 Wed, 07 Nov 2012 21:42:35 +0100 ?? Clemens Ladisch <cladisch@xxxxxxxxxxxxxx>: > Sergei Steshenko wrote: > > Wed, 07 Nov 2012 08:59:51 +0100 ?? Clemens Ladisch <cladisch@xxxxxxxxxxxxxx>: > >> Sergei Steshenko wrote: > >>> what controls should I set in order to make a default input (either > >>> "Mic" or "Line") an output > >> > >> The CM106 chip itself does not have the ability to make some input pin > >> an output (see section 5 of the datasheet). This is likely to be > >> managed by some external hardware controlled by some GPIO output. > >> > >> At the moment, the driver doesn't support this. You could try adding > >> a control to toggle GPIOs. > > > > "You could try adding a control to toggle GPIOs" - can I do it through 'amixer' or I need to change the driver ? > > The latter. Real programming needed. > > > Regards, > Clemens > After some web search I cam across 'usb-robot' - http://usb-robot.sourceforge.net/ . Its README file contents are: " This file describes the package and how to use it. You need a recent libusb. See INSTALL for details of requirements. See the file INSTALL for instructions on compiling and installing. See the file AUTHORS for who to mail about problems, suggestions, etc. usb-robot ========= The latest version is always at http://usb-robot.sourceforge.net. The status of this release is beta. There are no known bugs, but virtually no testing has been carried out. This program is to communicate with generic USB devices using libusb. It can be used to send commands to the device directly from the console (usb-robot-slave), or as part of some rapidly prototyped driver in a language like perl or Python. For a really bad example of how you can do that, it comes with a program (usb-robot-master) that translates traces of MS-Windows driver actions into usb-robot-slave commands, so you can get your device to do whatever MS-Windows did to it. You can get these traces from sniffusb version 0.1, which is linked to from the usb-robot homepage. At the moment only control and bulk transfers are supported. Note that to communicate usefully with USB devices you need to be the superuser (root). Starting up =========== Linux 2.4.2: First load your USB kernel driver. See USB docs for more help. Don't forget to mount the /proc/bus/usb usbdevfs filesystem. *BSD: Does it work at all? Send mail! Running the slave directly ========================== # ./usb-robot-slave product=0x0099 vendor=0x05da This will search the USB buses for the specified device and open its /proc/bus/usb filehandle (via libusb). Now the command prompt will pop up. To see the commands you can use, type help and press return. Running the master ================== The (unpolished) usb-robot-master perl script can be used to control the usb-robot-slave, using debuglogs produced from sniffusb in conjunction with dbgview. Perhaps perl-5.6.0 is required. I don't know. The following example acts on turnon.log then scansuite.log, using them to control a device with specified product and vendor id. # ./usb-robot-master --session-type=interactive --product=0x99 --vendor=0x5da\ /mnt/d/temp/turnon.log /mnt/d/temp/scansuite.log A session type other than "interactive" will produce output to STDOUT describing what would be passed to the slave and what output from the slave would be expected. A session type of "dump" will produce a condensed (more readable) dump of the logs passed to the program. ". So, maybe no real programming is needed provided I figure out what control data to send to the card ? Thanks, Sergei. ------------------------------ Message: 2 Date: Mon, 12 Nov 2012 05:39:12 -0500 From: Paul Homlish <phomlish@xxxxxxxxxxx> Subject: Re: alsa arecord works then stops working - Re: alsa capture works then stops working To: Jos? Luis Artuch <artuch@xxxxxxxxxxxxx> Cc: alsa-user@xxxxxxxxxxxxxxxxxxxxx Message-ID: <50A0D1D0.3080409@xxxxxxxxxxx> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 11/12/2012 5:35 AM, Paul J. Homlish III wrote: > Thanks for the suggestion Jose. > > I believe my description was poor: > arecord|aplay I hear sound, vlc I don't, back to arecord|aplay and no > sound until reboot. > > I did > amixer > amixer_dump > and > amixer contents > amixer_contents > before and after, the diff reports exact same settings. > > ------------------------------ ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. 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