[Health] generate clean tone to speakers (first prototype of working EKG around the XO )
arjun at laptop.org
Wed Apr 2 01:14:40 EDT 2008
> Arjun, could you suggest an activity that gives a good clean example of
> sending sound to the speakers? Thanks.
You could use gstreamer (the same package the measure uses to grab audio data)
to create a pipeline, a command line example is below which generates
a sine of 500Hz
gst-launch-0.10 audiotestsrc wave=sine freq=500 ! audioconvert ! alsasink
In python you could create a pipeline and implement it similar lines
to that given in audiograb.py in the Measure code.
I think it is possible to generate tones using Csound too and perhaps
other Activities are doing it, but I'm not aware of them.
Intern at One Laptop per Child
<arjun at laptop.org>
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