Hi Anders, I made the Common Lisp version of ATS work last Christmas. It now works with newest CLM. In addition I reimplemented the resynthesis part as a realtime module in incudine. You can find it here:
https://github.com/ormf/ats-cuda The performance is comparable to the original non-realtime CLM version (even slightly more efficient on my machine). I use sbcl on linux and only tested this combination. It might not be all that helpful for your purpose as ATS has an analysis stage that is non realtime. In addition tweaking the analysis params (especially in your case) is probably crucial in order to get the residual signal you'd like to obtain and you'd probably want to adjust the params dynamically, which is not feasible considering the architecture of ATS. I made a browser based gui to interactively scan across the sonagram of the ATS analysis with a mouse. You can narrow down the bandwidth to listen to, modulate the frequencies of the ATS tracks individually and/or crossfade between the sine and residual component in realtime. If you want to try it out let me know and I can give you directions on installation. The interactive part is pre alpha, but it works well and I'm already using it for compositions. Once the ATS file has been calculated it's like an interactive realtime version of Spear with modulation capabilities. Best, Orm ---------------------------------------------------------------------- Prof. Orm Finnendahl Komposition Hochschule für Musik und Darstellende Kunst Eschersheimer Landstr. 29-39 60322 Frankfurt am Main https://www.youtube.com/watch?v=2rWha1HTfFE&list=PLiGfneJSWmNw6dTUvcTHbTkCYOOTiB_N6 Am Dienstag, den 15. August 2023 um 10:20:38 Uhr (-0700) schrieb Juan Reyes: > > Hi Anders, > > If I recall Juan Pampin's ATS [1] would do what you are describing. > > Lisp version was good but I have not used it in fifteen years (CMUCL) > and not so sure it will work on SBCL. Meaning that it would probably > need some toggling, if someone has some free time. > > Juan and Pablo de Liscia also had some C++ binaries that worked > 'realtime' but have not tried them recently. They might need > recompilatation. > > If you get ATS working I'm positive you'll get what you want. > > --* Juan Reyes > > > [1] > https://dxarts.washington.edu/wiki/analysis-transformation-and-synthesis-ats > > > > I want to remove as much-as-possible harmonic content from sound > > input, leaving only the noise part. Think acoustic guitar, or > > close-miked piano, leaving the 'mechanics' only. > > > > Ultimately i'll need a real-time solution. > > > > Perhaps something like a LPC-based approach which may be used in > > real-time? > > > > Or perhaps trying to subtract a certain part of the result of a > > FFT-analysis? Or some other approach? Anyone tried? > > > > All suggestions or refs are very welcome! :-) > > > > _______________________________________________ > Cmdist mailing list > Cmdist@ccrma.stanford.edu > https://cm-mail.stanford.edu/mailman/listinfo/cmdist _______________________________________________ Cmdist mailing list Cmdist@ccrma.stanford.edu https://cm-mail.stanford.edu/mailman/listinfo/cmdist
