Smoother Dynamic Crossfades
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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 :)
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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?
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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) -
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 -
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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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
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Christoph, I just came across this. Could something like this be implemented in HISE to morph between dynamics - http://spectmorph.org/ ?
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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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seems t be implemented in a VST plugin so it might work real-time.
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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.
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Another possibility - http://www.cerlsoundgroup.org/Kelly/soundmorphing.html
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@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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@HISEnberg Nope
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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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@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
My Patreon - HISE tutorials
YouTube Channel - Public HISE tutorials -
@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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@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 :)
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@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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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."
https://www.samplemodeling.com/about-us/
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."
