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    Haha the easter bunny has delivered.

    Scheduled Pinned Locked Moved General Questions
    loris
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    • 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

                          1 Reply Last reply Reply Quote 0
                          • ?
                            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

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

                                      @Christoph-Hart Fortunately it was never something I used and didn't become dependent on for my workflow. I know some developers still keep some really old Mac hardware around just for this one tool. But this feature always seemed cool to me.

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

                                      1 Reply Last reply Reply Quote 0
                                      • ?
                                        A Former User @Christoph Hart
                                        last edited by

                                        @Christoph-Hart can i steal this LAF? good lord it's beautiful

                                        1 Reply Last reply Reply Quote 2
                                        • ustkU
                                          ustk @Christoph Hart
                                          last edited by ustk

                                          @Christoph-Hart It crashes on mac with a mouseUp in the upper previewPanel so I changed this

                                          Engine.playBuffer("", "", 0.0);
                                          

                                          into this

                                          Engine.playBuffer([], "", 0.0);
                                          

                                          Can't help pressing F5 in the forum...

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

                                            @ustk Intel or M1?

                                            @Christoph-Hart said in Haha the easter bunny has delivered.:

                                            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.

                                            Can you also make the export work? :D

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

                                            ustkU 1 Reply Last reply Reply Quote 0
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