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Casio CZ waveforms?
Posted:
Wed Oct 09, 2019 5:55 pm
by Halon
Hi. Was wondering how i would go about to make the waveforms you find in the CZ line of synthesizers e.g SawSquare, DblSine and Reso waveforms. They are all based on Sine waves i believe, so a waveshaper would do the job i guess?
Cheers.
Re: Casio CZ waveforms?
Posted:
Wed Oct 09, 2019 6:19 pm
by tulamide
Casio used a method called "Phase Distortion Synthesis" for the CZ family. This video demonstrates the math behind it. Make sure to watch the follow-up video as well!
https://youtu.be/EW12RYc7QRA
Re: Casio CZ waveforms?
Posted:
Wed Oct 09, 2019 8:35 pm
by Halon
Thank you tulamide
Re: Casio CZ waveforms?
Posted:
Fri Oct 11, 2019 11:05 pm
by BobF
Hi, saw this post so thought I would post this. Three methods of "Phase Distortion" . The cool thing about the Heterodyne and Allpass methods is you can use and external sources for your input waveform.
Later then, BobF
Enjoy and PLEASE comment.....
Re: Casio CZ waveforms?
Posted:
Sat Oct 12, 2019 11:51 am
by Phil Thalasso
Hey all,
thank you tulamide for sharing that youtube treasure-trove and thank you Bob for sharing your work.
Ya'll have a nice week-end
Best regards
Phil
Re: Casio CZ waveforms?
Posted:
Sat Oct 12, 2019 5:41 pm
by Halon
BobF wrote:BobsPhaseDistoration.fsm
Hi, saw this post so thought I would post this. Three methods of "Phase Distortion" . The cool thing about the Heterodyne and Allpass methods is you can use and external sources for your input waveform.
Later then, BobF
Enjoy and PLEASE comment.....
Thank you bob
Re: Casio CZ waveforms?
Posted:
Tue Oct 15, 2019 1:42 pm
by Spogg
I’ve attached the Casio patent for the technique.
I personally find it fascinating what was being achieved with the relatively limited digital electronics available back in the 80s.
Enjoy!
Spogg
Re: Casio CZ waveforms?
Posted:
Thu Oct 17, 2019 11:11 pm
by Halon
Thank you spogg!