[LAD] simulating analog audio devices part II

Stefano D'Angelo zanga.mail at gmail.com
Thu Jun 7 17:30:43 UTC 2007


Il giorno gio, 07/06/2007 alle 12.05 +0200, Robin Gareus ha scritto:
> 
> Stefano D'Angelo wrote:
> > Il giorno gio, 07/06/2007 alle 09.20 +0200, Robin Gareus ha scritto:
> >> Stefano D'Angelo wrote:
> >>
> >>> Hi,
> >>> I read on spicy sound website: "However todays computing power allows to
> >>> do so almost in real-time!"... do you think you'll get it real-time?
> >> no, not any more.
> >>
> >> Without oversampling, small circuits run /almost/ in real-time. However
> >> the posted 3 seconds of guitar took almost 4 mins to be processed with
> >> ngSpice simulating at 1s/(64*48k) timesteps.
> > 
> > 4 mins? OMG! :-\
> 
> indeed - at least it scales linearly with decreasing timesteps ;) - for
> guitar a *8 or *16 oversampling is sufficient. ngSpice is clearly is not
> suitable to be used as audio-effect; yet it's handy to test&debug
> audio-circuits, or even create convolution samples.

Oh well, I didn't notice the 64! :-D
Anyway, keep it up. It's very interesting stuff!

Stefano




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