Michael,

I'm somewhat afraid it might be difficult to use this 'scope software when something other than a PC sound system is used to gather the samples. How difficult is it to convert a set of samples at either 8-bit or 12-bit resolution to a .wav file? There are sound display/edit tools freely available that one with limited budget could obtain. Maybe there's a path there someplace.

I agree there's some risk of loss of accuracy with the method I suggested, but I'd suggest you consider how and to what purpose the CD-accuracy-claimed channels on a typical motherboard sound channel were designed. 8-bit accuracy is way past accurate enough for what's under consideration, yet the PC sound system claims 16-bit accuracy. I'd guess it's safe to use it where 6-to-8 bits are all that's required.

Another option might be to use a system like you've suggested, but ... Where would one get ready-to-use interpretation and display software incorporating an oscilloscope set of features?

How difficult is it to generate such software? You are, after all, WAY more capable of making such an assessment than I, having been involved in PC-software generation for decades. It's possible that, given one or another method of collecting samples, it's easy enough to whittle on one or another of the PC-'scope or sound-file display/editing software samples out there, one could use one or another ADC-equipped MCU EVK to gather the samples. Converting them to a .wav file might not be terribly difficult, though I've no knowledge one way or the other. I was thinking that the SiLabs 'F12x DK might be one possible alternative, just to diddle with the concept.

What would you say about that?

Keep in mind I'm trying to see this from the viewpoint of the guy whose annual income is less than what you and I earn in a week. If it's solved for him, it's solved for everyone else as well. Let's not make the perfect solution the enemy of the adequate one.

RE