[Csnd] Modelling a piano like instrument: waveguide questions
| Date | 2021-09-02 10:44 |
| From | "Jeanette C." |
| Subject | [Csnd] Modelling a piano like instrument: waveguide questions |
Hey hey,
I'd like to create a piano like instrument (for starters). Some research lead
me to a paper about modelling a piano based on waveguides:
https://quod.lib.umich.edu/i/icmc/bbp2372.1987.013/--modeling-piano-sound-using-waveguide-digital-filtering?rgn=main;view=fulltext
The author basically works with one-dimensional bidirectional waveguides. I
expect the work was based on general purpose programming language(s).
I ran into quite a few challenges starting out. waveguide1 with higher
frequencies would quickly decay, far too fast. I experimented with different
cutoff settings and, naturally, the feedback.
Reading about waveguides with junctions and two delay lines, I wonder:
following the above paper, should I model one string with two waveguide1
opcodes partially feeding back into each other?
Or is there perhaps a newer or different approach to modelling a piano that is
easier to implement in Csound?
Best wishes and TIA,
Jeanette
--
* Website: http://juliencoder.de - for summer is a state of sound
* Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g
* Audiobombs: https://www.audiobombs.com/users/jeanette_c
* GitHub: https://github.com/jeanette-c
And when you say those words
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| Date | 2021-09-02 14:24 |
| From | "Peter P." |
| Subject | Re: [Csnd] Modelling a piano like instrument: waveguide questions |
| Attachments | None |
| Date | 2021-09-02 16:08 |
| From | Michael Gogins |
| Subject | Re: [Csnd] Modelling a piano like instrument: waveguide questions |
| Attachments | faust_piano.dsp |
Faust has a piano model that I have attached. In theory this can be used with the Csound Faust opcodes, but unfortunately, although I have made many nice Csound instruments using Faust .dsp sources, this particular one does not work for me. In theory you can get Faust to translate this to C++ code and make a plugin Csound opcode that way, but I haven't (yet?) been able to get that to work. Anyway, this model looks fairly complete. Regards, Mike ----------------------------------------------------- Michael GoginsIrreducible Productions http://michaelgogins.tumblr.com Michael dot Gogins at gmail dot com On Thu, Sep 2, 2021 at 9:24 AM Peter P. <peterparker@fastmail.com> wrote: Jeanette, |
| Date | 2021-09-02 17:59 |
| From | Partev Sarkissian <0000060b2ef1338e-dmarc-request@LISTSERV.HEANET.IE> |
| Subject | Re: [Csnd] Modelling a piano like instrument: waveguide questions |
|
Along with Karplus-Strong, there's Julius Smith's page at CCRMA,
https://ccrma.stanford.edu/~jos/
Modeling,... https://ccrma.stanford.edu/~jos/pasp/
and Struck string,... https://ccrma.stanford.edu/~jos/pasp/Ideal_Struck_String.html
Enjoy.
-PBS
-----Original Message-----
From: Michael Gogins <michael.gogins@GMAIL.COM> To: CSOUND@LISTSERV.HEANET.IE Sent: Thu, Sep 2, 2021 8:08 am Subject: Re: [Csnd] Modelling a piano like instrument: waveguide questions Faust has a piano model that I have attached.
In theory this can be used with the Csound Faust opcodes, but unfortunately, although I have made many nice Csound instruments using Faust .dsp sources, this particular one does not work for me.
In theory you can get Faust to translate this to C++ code and make a plugin Csound opcode that way, but I haven't (yet?) been able to get that to work.
Anyway, this model looks fairly complete.
Regards,
Mike
-----------------------------------------------------
Irreducible Productions http://michaelgogins.tumblr.com Michael dot Gogins at gmail dot com On Thu, Sep 2, 2021 at 9:24 AM Peter P. <peterparker@fastmail.com> wrote:
Jeanette, |
| Date | 2021-09-02 19:37 |
| From | "Jeanette C." |
| Subject | Re: [Csnd] Modelling a piano like instrument: waveguide questions |
Hi Partev, Michael and Peter,
many thanks for all your pointers and resources. I'm slowly making my way,
hoping to gain something along the roa. :) It's definitely fun.
Best wishes,
Jeanette
--
* Website: http://juliencoder.de - for summer is a state of sound
* Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g
* Audiobombs: https://www.audiobombs.com/users/jeanette_c
* GitHub: https://github.com/jeanette-c
I love the things you say
And I love the love your touch conveys <3
(Britney Spears)
Csound mailing list
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Send bugs reports to
https://github.com/csound/csound/issues
Discussions of bugs and features can be posted here |
| Date | 2021-09-03 22:19 |
| From | Michael Gogins |
| Subject | Re: [Csnd] Modelling a piano like instrument: waveguide questions |
Okay, I got this to work. There is evidently a bug in the Faust `faust2csound` tool, which I figured out how to work around (it's easy). The Faust piano does not sound nearly as good as the Pianoteq physically modelled VST plugin, but still, this opens the way to creating many new plugin opcodes from Faust code. You can see all the files here: https://github.com/gogins/csound-extended/tree/develop/Opcodes/faust_piano Regards, Mike ----------------------------------------------------- Michael GoginsIrreducible Productions http://michaelgogins.tumblr.com Michael dot Gogins at gmail dot com On Thu, Sep 2, 2021 at 2:36 PM Jeanette C. <julien@mail.upb.de> wrote: Hi Partev, Michael and Peter, |
| Date | 2021-09-04 09:42 |
| From | Victor Lazzarini |
| Subject | Re: [Csnd] [EXTERNAL] Re: [Csnd] Modelling a piano like instrument: waveguide questions |
|
If you let Yann Orlarey know about this bug, he'll fix very quickly. Prof. Victor Lazzarini
Maynooth University
Ireland
On 3 Sep 2021, at 22:20, Michael Gogins <michael.gogins@gmail.com> wrote:
|
| Date | 2021-09-04 13:12 |
| From | Michael Gogins |
| Subject | Re: [Csnd] [EXTERNAL] Re: [Csnd] Modelling a piano like instrument: waveguide questions |
I have opened an issue for this in the Faust repository: https://github.com/grame-cncm/faust/issues/648. Regards, Mike ----------------------------------------------------- Michael GoginsIrreducible Productions http://michaelgogins.tumblr.com Michael dot Gogins at gmail dot com On Sat, Sep 4, 2021 at 4:42 AM Victor Lazzarini <Victor.Lazzarini@mu.ie> wrote:
|
| Date | 2021-09-04 13:24 |
| From | Victor Lazzarini |
| Subject | Re: [Csnd] [EXTERNAL] Re: [Csnd] Modelling a piano like instrument: waveguide questions |
|
great Prof. Victor Lazzarini
Maynooth University
Ireland
On 4 Sep 2021, at 13:13, Michael Gogins <michael.gogins@gmail.com> wrote:
|