[sdiy] Analysis of frequency variation in analogue synths

[Seb Francis]

Personally I would think that using a computer to analyse the waveform 
would be the most sensible route to take here.   Of course is goes 
without saying that one should use a *good* audio interface, preferably 
clocked at 88.2kHz or above.

With a good audio interface it really is quite impossible with the human 
ear to tell the difference between a live analog synth and a recording 
of an analog synth.  This kind of implies that the useful information 
that makes the analog synth sound 'analog' is not lost by the conversion 
to and from digital.  I has to be said that I do have a fairly high end 
audio interface that is well known for not adding any character of its 
own to the sound:
http://www.rme-audio.de/en_products_adi_8_ds.php
But I would have thought that most modern studio quality audio 
interfaces would be good enough for this kind of analysis.

Seb