On Mon, Sep 12, 2011 at 2:39 PM, John Doty <j...@noqsi.com> wrote: > > On Sep 12, 2011, at 3:09 PM, Hannu Vuolasaho wrote: > >> I have been playing with one guitar amplifier project for a while and so far >> the amplifier design has been more or less copy and paste and simulate and >> guess from graphs. However I bumped in net this blog post >> >> http://nordicnerd.blogspot.com/2011/08/active-speakers-spice-with-actual-audio.html >> >> Is it possible to do same thing? Input wav to simulator and get speaker's >> output and hear it? I know it's not perfect but it could be very helpful. >> Has someone done this before and provide some hints, examples or links? > > Shouldn't be too hard. ngspice seems to have no limit to the length of a PWL > spec. Put the audio in some simple form (like raw binary samples), write a > tiny program to convert to PWL. Generate output with .PRINT, write another > tiny program to convert to binary samples. >
Here's the spice raw reader that jpd and Hannu are both missing out on: http://www.h-renrew.de/h/python_spice/spicedata.html Even outputs to hdf5: http://www.hdfgroup.org/HDF5/ You'd probably be able to glue together the spice raw reader and this fairly quickly to get wav output from ngspice: http://www.ar.media.kyoto-u.ac.jp/members/david/softwares/audiolab/ _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
