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    Haha the easter bunny has delivered.

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    loris
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    • Christoph HartC
      Christoph Hart @d.healey
      last edited by

      @d-healey Can you check whether it works on Linux?

      1. Clone the loris-tools repo
      2. Build the loris_library Dynamic library (both Debug and Release configs). This is completely self contained now so you don't need to have loris installed anymore. I've added a default Linux Makefile exporter but it might be possible that you have to customize it.
      3. Copy the .so files into APPDATA/HISE/loris_library/
      4. Recompile HISE, go to the settings, tick EnableLoris (Development Settings) and restart.
      5. Open the Loris Toolbox project from the repo. If you're not flooded with error messages in the HISE console, then it works :)

      That's the current Toolbox App:

      I've implemented a few functions along with some custom algorithms (pitch locking, spectral gain adjustment, time dilation). I'm really surprised how well this sounds - one thing I've realized pretty early is that you have to subtract the resynthesised version from the original to get the residual noise part that you then can add after the processing as the resynthesis always chokes at the noise stuff.

      ? 1 Reply Last reply Reply Quote 0
      • d.healeyD
        d.healey
        last edited by d.healey

        Hi,

        All compiled and loaded successfully here.

        The only thing I had to do was rename the dll. The output from the makefile was libloris_library_debug and I needed to remove the lib part for HISE to pick it up.

        I'm going to have fun playing with this now. If you think of any way you can get real-time morphing into HISE without infringing the license (or if it can be added optionally for GPL projects) I will be very happy :D

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

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        • d.healeyD
          d.healey
          last edited by

          If there's nothing in the buffer preview and I click on it I get an error

          Interface:! BufferPreview.js (134): API call with undefined parameter 2

          If there is something loaded and I click the buffer preview, HISE crashes on mouse-up.

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

          Christoph HartC 1 Reply Last reply Reply Quote 0
          • Christoph HartC
            Christoph Hart @d.healey
            last edited by

            Thanks for checking it. I'd rather change the code in HISE that creates the filename - Linux adds the lib prefix automatically so you would have to rename it manually every time.

            I also got the crash on Windows, but on macOS it's not crashing for some reason... I'll debug it later, but it looks like an easy fix.

            I'm not sure whether the realtime morphing is really necessary or if you could just create a bunch of intermediate samples with the morphing algorithm and then use the cross fade from the sampler - I don't think the different will be very noticeable and CPU wise it will still be faster rendering 8 samples simultaneously than resynthesizing the sample in realtime.

            d.healeyD 2 Replies Last reply Reply Quote 1
            • d.healeyD
              d.healey @Christoph Hart
              last edited by

              @Christoph-Hart Hmm that's a good idea. I'll give that a try.

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

              Christoph HartC 1 Reply Last reply Reply Quote 0
              • Christoph HartC
                Christoph Hart @d.healey
                last edited by

                @d-healey I think the main point here is to manipulate the samples so that the phases are perfectly aligned, then you can crossfade all you want.

                There are multiple other use cases I see for this:

                • create round robin variations (the dilate function is super helpful here because you can distort the attack phase and create natural variations like this)
                • create sordino / muted variations with the spectral editor (just remove a few lower harmonics)
                • create better sounding pitch variations than just changing the playback ratio (I've added a simple constant pitch modulator to the original preview so you can compare the sound of the repitched loris output against the "default" repitching done with linear interpolation.
                • create perfect loops by morphing the loop crossfade instead of fading.
                d.healeyD 1 Reply Last reply Reply Quote 1
                • d.healeyD
                  d.healey @Christoph Hart
                  last edited by

                  @Christoph-Hart Yeah I can also see a case for morphing between dissimilar samples, like sustain to flutter or sustain to vibrato. Or even between samples that are from completely different instruments or sources.

                  Would it be worthwhile my contacting the developer and seeing if we can get him to release it under MIT or perhaps dual license it for HISE?

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

                  Christoph HartC 1 Reply Last reply Reply Quote 0
                  • Christoph HartC
                    Christoph Hart @d.healey
                    last edited by

                    @d-healey My gut feeling is that the performance is not good enough for realtime usage. A 8 second sample takes about 2 seconds to synthesise, so a single voice is 25% CPU, so playing a chord will eat up your entire CPU.

                    I think the library was never intended to be used in realtime and the amount of work to make this possible is more or less the same as writing a fast additive synth that uses the analysed partial data from scratch.

                    LindonL d.healeyD 2 Replies Last reply Reply Quote 3
                    • LindonL
                      Lindon @Christoph Hart
                      last edited by

                      @Christoph-Hart

                      "a fast additive synth that uses the analysed partial data from scratch...."

                      -- so that would be a great idea to do - just do all your partial generating in batch and ship this specification file with an additive sound generator that knew how to read them...

                      HISE Development for hire.
                      www.channelrobot.com

                      1 Reply Last reply Reply Quote 1
                      • d.healeyD
                        d.healey @Christoph Hart
                        last edited by d.healey

                        @Christoph-Hart That makes sense. Ok I'll continue with the phase alignment idea. I'm already working with another developer on this angle too.

                        Oh actually you might be interested, it's the guy who made this - https://github.com/VirtualAnalogy/Paraphrasis

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

                        LindonL 1 Reply Last reply Reply Quote 2
                        • LindonL
                          Lindon @d.healey
                          last edited by

                          @d-healey said in Haha the easter bunny has delivered.:

                          @Christoph-Hart That makes sense. Ok I'll continue with the phase alignment idea. I'm already working with another developer on this angle too.

                          Oh actually you might be interested, it's the guy who made this - https://github.com/VirtualAnalogy/Paraphrasis

                          ooh, err, that'd be good.....

                          HISE Development for hire.
                          www.channelrobot.com

                          1 Reply Last reply Reply Quote 0
                          • d.healeyD
                            d.healey
                            last edited by d.healey

                            Is the save button implemented?

                            Does the pitch lock use the harmonify class (or whatever it's called)?

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

                            Christoph HartC 1 Reply Last reply Reply Quote 0
                            • Christoph HartC
                              Christoph Hart @d.healey
                              last edited by

                              @d-healey Nope, the save button doesn't do anything yet, I'll try to think of a few ways of batch processing this stuff as you don't want to click on it for each sample export :)

                              the pitch lock is a custom script function - that's the great thing about the entire setup: you can just define a Javascript function that processes each breakpoint (=read grain) of each partial (=read harmonic).

                              The relevant function looks like this:

                              inline function pitchLock(obj)
                              {
                                  // Repitch
                                  obj.frequency *= pitchFactor;
                              		
                                  // Apply noise gain (bandwidth is the noise amount, 1 = full noise, 0 = pure sinusoidal)
                                  obj.bandwidth *= noiseGain;
                              
                                  // calculate the "real" harmonic
                                  local ratio = Math.round(obj.frequency / obj.rootFrequency);
                              
                                  // calculate the fully locked frequency
                                  local lockedFrequency = ratio * obj.rootFrequency;
                              
                                  // interpolate between the locked and original frequency 
                                  obj.frequency = pitchLockAmount * lockedFrequency + (1.0 - pitchLockAmount) * obj.frequency;
                              }
                              

                              As you can see, it's almost pseudo-code style easy to write spectral manipulation functions, which makes it a super nice tool for playing around.

                              d.healeyD 1 Reply Last reply Reply Quote 2
                              • d.healeyD
                                d.healey @Christoph Hart
                                last edited by

                                @Christoph-Hart Oh wow, that makes it quite simple to use then. Yes batch preprocessing would be good.

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

                                1 Reply Last reply Reply Quote 0
                                • d.healeyD
                                  d.healey
                                  last edited by

                                  I'm thinking if I pitch lock all the dynamic layers, then align the peaks and troughs my chorusing issues should be eliminated. Is there a way to overlay waveform views so I can do the lining up in HISE?

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

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                                  • ?
                                    A Former User
                                    last edited by

                                    what the heck is a Loris?

                                    d.healeyD 1 Reply Last reply Reply Quote 0
                                    • d.healeyD
                                      d.healey @A Former User
                                      last edited by d.healey

                                      @iamlamprey

                                      84024504-7aca-4317-a254-f19a50564dcf-image.png

                                      www.cerlsoundgroup.org/Loris/

                                      Go check out the video I posted on Patreon last week :)

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

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                                      • ?
                                        A Former User @d.healey
                                        last edited by

                                        @d-healey i shall resub when I'm not MC Hammer-broke ;)

                                        i assume there's already someone out there way smarter than me working on a differentiable version of this...

                                        d.healeyD 1 Reply Last reply Reply Quote 0
                                        • d.healeyD
                                          d.healey @A Former User
                                          last edited by

                                          @iamlamprey Oh sorry, didn't realise you weren't subscribed. The video will probably be public in a couple of weeks.

                                          Basically Loris is a tool for dismantling audio files into individual sine-waves, fiddling about with them, and then putting them back together.

                                          And what Christoph has done is use it to create what is essentially a harmonic editor.

                                          This kind of thing:
                                          https://www.youtube.com/watch?v=TSqx_zZKlLk

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

                                          Christoph HartC 1 Reply Last reply Reply Quote 0
                                          • Christoph HartC
                                            Christoph Hart @d.healey
                                            last edited by

                                            @d-healey Aah, keymap, the glory days. What a shame what Apple did to this software...

                                            d.healeyD ustkU 2 Replies Last reply Reply Quote 2
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