Re: Soundcard as analog input

2007/10/24, febrian kirana <febriansasi_at_gmail.com>:
> Thanks to all that gives me response I really appreciate it.
> First, let me introduce myself, I study electrical power system and my main
> subject are around power system problems such as, AC current, DC current,
> Transient analysis, Harmonic and Electrical Motor and Generator. But now
> what i want is to measure AC current using my soundcard. The reason I use my
> soundcard because I dont like to be restricted by any vendors, manufacturer,
> or products. And I want to use my slackware useful not just play music and
> create documents.

Comedi provide a useful API which make hardware abstraction layer, in
order to unrestrict your code to a hardware vendor.

> So the signal that I want to analyze are about approximate 60 Hz. Does
> anyone have any idea how to do this ?

Maybe you should see toward Alsa programming (
http://www.alsa-project.org ), which is the linux's sound interface.
There are also some nice apps like Audacity which allow you to record
signals and export them in a wav file witch is analyzable with GNU
Octave.

> I always think that what windoze can do, Linux can do it better.
Not for restricting user's rights ;-)

Francois
-- 
François Poulain <fpoulain_at_gmail.com>
*** Maybe you should defenestrate your computer ***

Received on 2007-10-24Z12:26:16