[sdiy] Oscilloscope Software

[Ken Stone]

This sounds around par for the actual (Philips) CRO I use. It has AC coupled
inputs and limited frequency response. It certainly doesn't do all I would
like it to do, but the price was right.

>If you're just going to be using it for just audio ~20 Hz to 20-24 kHz (no
>DC, no high freq) then a newer sound card could work for you. Sound cards
>today have at least 16 bits which gives you ~96 db (more like 85 to 90 db in
>reality) of signal. Usally the input channels are AC coupled with caps which
>effects the low freq roll off and the converters do not go down to DC. The
>converters usally have low pass filters either built into them or around
>them to limit the input freq. This is dependent on the sample freq. You
>would also have to build a front end for the sound card and calibrate it.
>This would match the exterior voltage to the sound card levels and the
>levels in the scope software.
>
>Hope this provides some insight, good luck.
>Jay
>
>
>> -----Original Message-----
>> From: owner-synth-diy at dropmix.xs4all.nl
>> [mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of Mark Melvin
>> Sent: Wednesday, November 21, 2001 12:36 PM
>> To: Synth DIY List
>> Subject: [sdiy] Oscilloscope Software
>>
>>
>> Hi all-
>>
>> Do any of you have experience with PC oscilloscope
>> software?  I thought it would be a cost efficient
>> alternative to stand-alone scopes but what I found
>> seemed to similarly expensive because you have to buy
>> the special data conversion card.
>>
>> Any insight would be greatly appreciated.
>> Mahalo!
>> -Mark
>>
>> __________________________________________________
>> Do You Yahoo!?
>> Yahoo! GeoCities - quick and easy web site hosting, just $8.95/month.
>> http://geocities.yahoo.com/ps/info1
>>
>>
>
>
>
_______________________________________________________________________
Ken Stone   sasami at blaze.net.au  
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>