Diff for "Tech/LinuxAudio"

Differences between revisions 1 and 3 (spanning 2 versions)

Issues

Play mp3 in command line

Packages - alsa alsa-lib

List playback devices

$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC892 Analog [ALC892 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 1: ALC892 Digital [ALC892 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

Only root can read the audio device - Add regular user to "audio" group
Volume control - "alsamixer", left/right, up/down to adjust the volume
Play mp3 in command line - ffplay from ffmpeg, play from sox with libsox-fmt-mp3
```
$ ffplay file.mp3
$ play file.mp3
```

-  ⇤ ← Revision 1 as of 2013-07-24 05:26:28 → 
  Size: 303
  Editor: frank
  Comment:
+   ← Revision 3 as of 2013-07-24 05:42:41 → ⇥
  Size: 910
  Editor: frank
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 3:
-* Only root can read the audio device - Add regular user to "audio" group

* Volume control - "alsamixer", left/right, up/down to adjust the volume

* Play mp3 in command line - ffplay from ffmpeg, play from sox with libsox-fmt-mp3
+ * Play mp3 in command line
  * Packages - alsa alsa-lib
  * List playback devices
  {{{
$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC892 Analog [ALC892 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 1: ALC892 Digital [ALC892 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
}}}
  * Only root can read the audio device - Add regular user to "audio" group
  * Volume control - "alsamixer", left/right, up/down to adjust the volume
  * Play mp3 in command line - ffplay from ffmpeg, play from sox with libsox-fmt-mp3