======  OSS ======

Sound is NOT built into base of MicroCore, TinyCore or CorePlus, sound is implemented via extensions. 

Assuming you are a newbie, select ossxmix from the Apps and choose onboot. On reboot, you are likely to have sound.\\
If you have installed a desktop eg LXDE, you can drag into your desktop folder using your filemanager, the file is called ossxmix.desktop.\\
Your desktop icon is named 
<code>
OSS_GTK2_mixer.
</code>
The desktop (or icon) files are in
<code>
/usr/local/share/applications
</code>
Otherwise, you can click on empty desk space, choose Applications and name of mixer is called 
<code>OSS_GTK2_mixer</code>

If you prefer commands, open a terminal and run command
<code>
ossmix
</code>

For more advanced users, if you do not want a GTK download choose OSS from apps and reboot.
===== OSS versus ALSA =====

Warning: This is written for newbies, its not meant to be a pure recommendation but \\
is the personal opinion of aus9 to minimise forum posts where newbies can't do something \\
because they may be trying to use OSS when something might be better or vice versa.

   * If you need skype --> ALSA (and suggest no Pulseaudio) \\
   * If you need to change sound devices on-the-fly gui --> Pulseaudio (front end to ALSA) \\
   * If you need to change sound devices no gui -->  ALSA \\
   * If you need easier surround sound  -->Pulseaudio  \\
   * If you like command mode surround sound --> Try OSS \\
   * If you need a sound modem (dial-up) plus normal sound out --> Likely to be ALSA \\
   * If you need to use a webcam builtin mic --> Try OSS then ALSA \\
   * If you need to play high quality sound files --> ALSA\\
   * If you have a Intel device, that needs a tweak --> ALSA

   * In case you have an ISA sound card or a very old CPU, alsa may be your only choice. 

OSS is easier to setup, but fewer people use it so you may not get the support you are looking for.
See surround sound for a link to a forum.

ALSA is better suited to those with "better" sound devices or multiple sound devices or \\
sound devices that need tweaked settings.

As I have an intel device, that needs a tweak, multichannel sliders do no appear in my ossxmix image as \\
OSS appears to not know how to handle my sound device.

However, OSS is still easiest of the the two to setup for persistence so try OSS first please unless my list rules \\
OSS out. 

good luck and [[setting_up_sound|click here for ALSA wiki]]

=====Remove ALSA=====
If you have previously installed ALSA remove those packages from onboot

{{wiki:twid_70_mob.jpg}}
===== Checking tcz loads ok on reboot =====

When first loaded you may like to open a terminal and run command....ossinfo to see if your card is detected.

<code>
ossinfo
Version info: OSS 4.2 (b 2006/201202181035) (0x00040100) GPL
Platform: Linux/i686 3.0.21-tinycore #3021 SMP Sat Feb 18 11:54:11 EET 2012 (box)

Number of audio devices:	7
Number of audio engines:	11
Number of MIDI devices:		0
Number of mixer devices:	1

Device objects
 0: osscore0 OSS core services
 1: oss_hdaudio0 Intel HD Audio interrupts=428493 (431633)
    HD Audio controller Intel HD Audio
    Vendor ID    0x808627d8
    Subvendor ID 0x10192633
     Codec  0: STAC9221 (0x83847682/0x10192633)
 2: oss_usb0 USB audio core services

MIDI devices (/dev/midi*)

Mixer devices
 0: High Definition Audio STAC9221 (Mixer 0 of device object 1)

Audio devices
HD Audio play front               /dev/oss/oss_hdaudio0/pcm0  (device index 0)
HD Audio play center/LFE          /dev/oss/oss_hdaudio0/pcm1  (device index 1)
HD Audio play rear                /dev/oss/oss_hdaudio0/pcm2  (device index 2)
HD Audio play side                /dev/oss/oss_hdaudio0/pcm3  (device index 3)
HD Audio play spdif-out           /dev/oss/oss_hdaudio0/spdout0  (device index 4)
HD Audio rec rec1mux              /dev/oss/oss_hdaudio0/pcmin0  (device index 5)
HD Audio rec rec2mux              /dev/oss/oss_hdaudio0/pcmin1  (device index 6)

Nodes
  /dev/dsp -> /dev/oss/oss_hdaudio0/pcm0
  /dev/dsp_in -> /dev/oss/oss_hdaudio0/pcm0
  /dev/dsp_out -> /dev/oss/oss_hdaudio0/pcm0
  /dev/dsp_ac3 -> /dev/oss/oss_hdaudio0/spdout0
  /dev/dsp_mmap -> /dev/oss/oss_hdaudio0/pcm0
  /dev/dsp_multich -> /dev/oss/oss_hdaudio0/pcm0
</code>

If ok, you may wish to open cpanel...click on system stats then modules to see what modules are loaded.

{{wiki:twid_25_cp-mod.jpeg}}
You may like to navigate to /usr/lib/oss/conf and related folders to tweak any setting you may need

===== Mixer levels =====

Newbies might like to install a gui mixer called ossxmix.tcz.

In the following image, I have ossxmix started and moved my media player, vlc over the mixer panel so I could snapshot my terminal showing the command to run, the mixer panel and my media player.

{{twid60_ossxmix2.jpg}}

You may not have front connectors, as this is a tower and not a laptop.

The Master volume slider controls all.

Next image is un-ticked the channel lock so I can have different volumes left versus right.

{{twid_61_ossmix3.jpg}}

===== Media player may need tweak =====
If you run a media player gui, like vlc, you will need to tweak it to use OSS as that won't be its default. 

===== Persistence =====

If you have come from ALSA persistence, please remove all those settings as per {{wiki:setting_up_sound| ALSA wiki}}
and do a full reboot before doing any OSS stuff please.

If you need OSS persistence use root powers to edit your

/opt/.filetool.lst to add line

^usr/lib/oss/etc^

If needed, add other conf lines to above file, if you needed to change any.

Then reboot, with backup, to test its ok.

Note, if you use a media player, gui, its settings are likely to be stored under /home/tc so no extra files need to be added
to a standard TC user.

(warning ...aus9 is not an oss or alsa expert)

===== Tweaks =====

Testing without reboot.\\
Open a terminal and run command
<code>
sudo soundoff
</code>
Make changes to /usr/lib/oss area then 
<code>
sudo soundon
</code>
Try at own risk, please watch out for any typos in your backup .filetool.lst etc

If you know your sound card can do higher quality sound output tweak
^/usr/lib/oss/conf/osscore.conf^
Remove # so below line becomes active on next boot \\
src_quality=4

^/usr/lib/oss/conf/oss_hdaudio.conf ^
For those with high definition audio (intel), consider trying out a jack sense (3.55mm connector in the coloured holes) \\
hdaudio_jacksense=1
===== Surround sound  and OSS **forum**  extras=====

For surround sound click on the forum link and enter this string as a search please, as I have attempted to provide 2 links to it\\
but its borked

^HOWTO: 5.1 Surround sound with OSS4 ^

{{http://www.4front-tech.com/forum/| OSS linux forum}}

{{http://www.opensound.com/wiki/index.php/Tips_And_Tricks| Tips and Tricks}}

{{http://www.opensound.com/wiki/index.php/Troubleshooting| Trouble shooting}}
===== Webcam =====

To get your webcam working in TC, is not fully discussed in this wiki.\\
For my cam, on an usb lead, I need to use a module called uvcvideo so its sufficient for me to load\\
v4l-dvb-3.0.21-tinycore.tcz

My cam does not appear in
<code>
/usr/lib/oss/etc/devices.list
</code>

As its on a lead, I did a full reboot and then usb webcam tab appears in mixer pane

{{twid_62_ossxmix4.jpg}}









===== Credits =====
The upstream maintainers  - 4Front Technologies http://www.4front-tech.com/

TC maintainer - Curaga