[LAU] Soundcard Oscilloscope

Will Godfrey willgodfrey at musically.me.uk
Fri Mar 23 23:06:25 CET 2018

On Fri, 23 Mar 2018 14:23:48 -0700 (PDT)
Len Ovens <len at ovenwerks.net> wrote:

>On Fri, 23 Mar 2018, Will Godfrey wrote:
>> I have tried Xscope, but it doesn't seem to see a soundcard at all, Not eveing
>> the crappy on-board one :(  
>Simple scope from x42 plugin package? (may need Carla or similar for 
>standalone use)
>Len Ovens

Amazing what's tucked away out of sight! This works very nicely, standalone too.

It was rather interesting sending Yoshimi with a basic square wave (pulse in
Yoshimi) to it direct on two channels, then looping via the KA6 on the other
two. The default setting for Q on lp2 has significant ringing - but the KA6
doesn't seem to be adding any to it, you just see the normal slope due to the AC
coupling at lower frequencies.

Bypassing the global filter gives a smaller, high frequency ring at all
corners of the square - very unusual.

Sine wave is pristine, and triangle (saw in Yoshimi) is nice too.

Will J Godfrey
Say you have a poem and I have a tune.
Exchange them and we can both have a poem, a tune, and a song.

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