PSN-L Email List Message

Subject: RE: Voltage controled attenuator/amp
From: "Travis Farmer" travis5765@............
Date: Fri, 4 May 2001 21:00:13 -0400


I have inquired and tried it.
Most soundcards have a high pass filter set at 10 Hz. This means any
frequency below 10 Hz is lost.

-Travis

-----Original Message-----
From: psn-l-request@.............. [mailto:psn-l-request@.................
Behalf Of David russel
Sent: Friday, May 04, 2001 8:13 PM
To: PSN-L@..............
Subject: Voltage controled attenuator/amp

Al's inquirey about the VCA got me think'in again about of a method
of getting data from the s'smtr into the computer.

        I was wondering if it was possible to Amplitude Modulate, with
the seismometer signal, a carrier of an arbitrary  audio frequency of
about 10Khz and input it into the SoundBlaster at the back of your
computer. Then doing something fancy with software like peak averaging
then plotting it.

Anyone ever done somth'in like this?

Casey
________________________________________________________________
GET INTERNET ACCESS FROM JUNO!
Juno offers FREE or PREMIUM Internet access for less!
Join Juno today!  For your FREE software, visit:
http://dl.www.juno.com/get/tagj.
__________________________________________________________

Public Seismic Network Mailing List (PSN-L)


__________________________________________________________

Public Seismic Network Mailing List (PSN-L)


[ Top ] [ Back ] [ Home Page ]

Larry Cochrane <cochrane@..............>