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    Smoother Dynamic Crossfades

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    • d.healeyD
      d.healey
      last edited by

      I had a little play with it but didn't really understand what I was doing. I'll try out your example and explore it some more :)

      Libre Wave - Freedom respecting instruments and effects
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      • d.healeyD
        d.healey
        last edited by d.healey

        Do you think it would be possible to implement some kind of bit for bit morphing feature in a similar way to how image morphs work? And would this offer an smoother alternative to traditional crossfading techniques without needing the samples to be phase aligned?

        Libre Wave - Freedom respecting instruments and effects
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        • LevitanusL
          Levitanus
          last edited by

          I suppose samples should be phase-alignment even WITH such technology. Just for the performance. If You are remember AET (which sucks), it eats a lot)))
          More than, we have more predictable behaviour, when know exactly when morph will come (I mean, the biggest problems are because of broken vibrato between samples). If samples are aligned in the host, and starts momentary, it produces the best fades. I've recorded 3 notes singed by my wife, and was lazy, while making attack samples. And here are lots of sounding problems now)

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          • d.healeyD
            d.healey
            last edited by

            I don't mean an EQ morph like the AET I mean a sonic audio morph:

            http://www.zynaptiq.com/morph/
            http://www.hakenaudio.com/RealTimeMorph/
            http://www.cerlsoundgroup.org/Kelly/soundmorphing.html
            https://www.dynamictonality.com/spectools.htm
            http://www.tandfonline.com/doi/pdf/10.1080/23311835.2015.1102116

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            • Christoph HartC
              Christoph Hart
              last edited by

              I suppose they all work using a FFT spectrum matching algorithm (which is basically the same thing as AET, but maybe with a better implementation)?

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              • d.healeyD
                d.healey
                last edited by d.healey

                I'm not sure if that's how it's done with image or video morphs, they use interpolation. I suppose the equivalent in audio would be to take two samples and interpolate the frequency and amplitude over time creating a nice smooth morph rather than just a frequency or amplitude crossfade. I came across a really good example a while ago but typically I can't find it now!

                Edit: Even more typically I found the link after making this post :) - http://cmc.music.columbia.edu/musicandcomputers/chapter5/05_06.php

                Libre Wave - Freedom respecting instruments and effects
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                • d.healeyD
                  d.healey
                  last edited by

                  Christoph, I just came across this. Could something like this be implemented in HISE to morph between dynamics - http://spectmorph.org/ ?

                  Libre Wave - Freedom respecting instruments and effects
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                  • Christoph HartC
                    Christoph Hart
                    last edited by

                    Sounds interesting, I'll take a look. I don't know it it is suitable for realtime processing, but maybe you can use this to convert your samples to multi-velocity wavetables and import them into the wavetable synth in HISE.

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                    • LindonL
                      Lindon
                      last edited by

                      seems t be implemented in a VST plugin so it might work real-time.

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                      www.channelrobot.com

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                      • d.healeyD
                        d.healey
                        last edited by

                        Yes it looks like it's real time. If it isn't then the analysis must be done before hand so that it can be morphed in real time (which would also work for dynamics or other morphing effects). Sample libraries with morphing like this would be a game changer.

                        Libre Wave - Freedom respecting instruments and effects
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                        • d.healeyD
                          d.healey
                          last edited by

                          Another possibility - http://www.cerlsoundgroup.org/Kelly/soundmorphing.html

                          Libre Wave - Freedom respecting instruments and effects
                          My Patreon - HISE tutorials
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                          • HISEnbergH
                            HISEnberg @d.healey
                            last edited by HISEnberg

                            @d-healey @Christoph-Hart did you guys ever make progress on this topic? I realize HISE is quite robust in terms of crossfading, but it would be pretty amazing to see some automatic phase-alignment going on.

                            I just started exploring this topic with regards to samplers, but it is quite interesting and it seems to me like it has a lot to offer in terms of workflow.

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                            • d.healeyD
                              d.healey @HISEnberg
                              last edited by

                              @HISEnberg Nope

                              Libre Wave - Freedom respecting instruments and effects
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                              • Robert PuzaR
                                Robert Puza @d.healey
                                last edited by

                                @d-healey

                                Please explain the question.
                                Do you mean to equalize the sound differences between samples velocity1 and velocity2? (For example)

                                that the velocity crossfading we have is not enough?

                                I like the topic of dynamics, I just want to understand this question correctly.

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                                • d.healeyD
                                  d.healey @Robert Puza
                                  last edited by

                                  @Robert-Puza This thread was initially started to discuss audio morphing. There are a lot of links earlier in this thread that give an explanation of the concept. This one is probably the most clear - https://spectmorph.org/

                                  Libre Wave - Freedom respecting instruments and effects
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                                  • Robert PuzaR
                                    Robert Puza @d.healey
                                    last edited by

                                    @d-healey ok. I'll look..

                                    but if you compare morphing to a picture, ...it sounds to me like you're talking about fractal geometry. (The equational answer to the truth that a tree is not a triangle and a cloud is not a sphere.)

                                    If Hise fills in the missing samples - is that also morphing?

                                    If we tell the software that between 1 and 10 samples, let it create 1000 steps to change one to the other. - is that Morphing?

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                                    • d.healeyD
                                      d.healey @Robert Puza
                                      last edited by

                                      @Robert-Puza said in Smoother Dynamic Crossfades:

                                      If we tell the software that between 1 and 10 samples, let it create 1000 steps to change one to the other. - is that Morphing?

                                      Probably :)

                                      Libre Wave - Freedom respecting instruments and effects
                                      My Patreon - HISE tutorials
                                      YouTube Channel - Public HISE tutorials

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                                      • Robert PuzaR
                                        Robert Puza @d.healey
                                        last edited by

                                        @d-healey https://youtu.be/5JwnSDIHN2w?si=yG7zx9fntYSURs99

                                        With an image it's like this (with a fractal equation) we design 2 images and specify how many images should be created between them. But it's a simulation of natural phenomena. Is it Morphing?
                                        Are you thinking of something similar with sound?

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                                        • Robert PuzaR
                                          Robert Puza @d.healey
                                          last edited by

                                          This post is deleted!
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                                          • VirtualVirginV
                                            VirtualVirgin
                                            last edited by VirtualVirgin

                                            Sample Modeling instruments do essentially what you are asking about here, so it's definitely do-able.

                                            "All Samplemodeling instruments exploit Dr. Giorgio Tommasini’s patented 'Harmonic Alignment' technique, which ensures for the first time seamless transitions across virtually infinite dynamics, from pianissimo to fortissimo."

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                                            ABOUT US a look inside the company More than 20 years of research and development A story of innovation and dedication aimed at helping musicians and composers to freely express their musical ideas. How it all started Samplers and synthesizers have been for decades the cornerstones of virtual music. The virtues and drawbacks of each […]

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                                            Samplemodeling (www.samplemodeling.com)

                                            I can't seem to find any more information on the patent, but if I come across something I will post it.

                                            You should probably ask Aaron Venture some questions, as his instruments are doing something similar:

                                            "Phase-aligned samples result in no perceived cross-fades between the layers; the response is smooth, musical, and sounds like the real thing."

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