User:Erikos/11.3.0/Audio

alsa

• cat /proc/asound/cards
• arecord -l
• arecord -d 10 /tmp/test-mic.wav
• aplay /tmp/test-mic.wav

ogg

• yum install vorbis-tools
• ogg123 sound.ogg

csound

You can get the example from here, just save it as .csd.

• csound -+rtaudio=alsa -odac:hw:0 sound.csd

Memorize

Memorize uses gstreamer to playback sound (see audio.py)

• open Memorize
• load demo game: 'Sounds'
• flip tiles

Browse

Totem

http://projects.gnome.org/totem/

• open an ogg file from the Journal (resume with)

Gnash

http://www.gnu.org/s/gnash/

Gstreamer

http://gstreamer.freedesktop.org/

• run gst-inspect on the output plug-in you want to use to make sure you have it installed, e.g. "gst-inspect alsasink"
• try to play a sine tone by running in the terminal: "gst-launch audiotestsrc ! audioconvert ! audioresample ! alsasink"

Record

Record uses gstreamer to record/playback sound

• record audio
• playback audio
• record video
• playback video

Jukebox

Jukebox uses gstreamer to playback sound

• open an ogg file from the Journal (resume with)

Etoys

• launch Etoys
• click the red car icon on the top-right
• click the yellow exclamation mark button next to "Car make sound: croak"

Scratch

• launch Scratch
• on the left select 'Sound' as category
• click on 'play sound [meow]'

TamTam

• open TamTamMini and click on the tiles

Speak

• open the activity, a prase will be spoken. You can write text to be spoken by the robot.

Pippy

• There are examples in the in the Sound section to test.

Distance

• Distance use aplay/arecord to meassure distance between XOs.

Change Volume

• The user can change the volume with a device in the Sugar frame or using the special keys in the XO.