Since several people are curious about the new featured convolution sustain sample modeling that we used in the GOLD BUNDLE GS3 pianos I quickly made these short demos for you.
The idea is basic but very effective:
The use of convolution here is to realistically improve the behaviour of the sustain pedal. In traditional sample libraries you use the sustain pedal as a simple ON-OFF switch to select which sample to play (the sustain pedal up sample or the sustain pedal down sample) and you have to operate the sustain pedal BEFORE you play a note. This is a big problem for a real pianist who is used to operate the sustain pedal any time while playing and immediately get the body resonance. This is essentially what GigaPulse does. You play a note or chord and hold the keys down, you can press the sustain pedal any time and the impulse-based resonance model of the piano comes in immediately. When you release the pedal the resonance fades away- just as in real life! The IR for this has to be recorded from the same piano as the samples to match perfectly.
And this is a huge resource saver: you don’t have to load two version of each note (the sustain pedal up and the sustain pedal down version) to get the result you want. You can load half as many samples and still get more realistic results than with the traditional system. More realistic because with GigaPulse you can actually control the amount of sustain resonance!
So if you want to emulate half pedal or quarter pedal you can do so by assigning a midi controller to the GigaPulse Wet/Dry balance or to the Perspective controler. See the picture of this basic embedded GP body resonance instance in the OLD LADY.
This GP instance is available for all versions of GigaStudio (the GigaPulse Pro version has more controls).
All clips are simple sequences and kept light (<1 MB) although in a high bitrate (256 kbps).
The first clip is a plain staccato sequence performed on The EMPEROR. There is no convolution, you hear pedal up samples only. Notice the hard wired release sampe!
No Sustain (staccato)
This second clip is the real recorded sustain pedal. This patch uses seperate samples for pedal up and pedal down.
Real Sustain Samples
This clip features the convoluted sustain pedal emulation with a nominal setting. The Wet/Dry amount is 100%/100%.
This clip has a higher Wet/Dry setting: 75%/125% so you hear more resonance.
Convolution Sustain 125%
This last clip is the isolated convolution sound (200% WET). Just to give you an impression of the effect.
Convolution ONLY (100% wet)
For those who like to experiment: you test all this with freely available tools on other platforms too. A very good (and freeware) Impulse plug-in is SIR.
You can download it from the Sir Website.
Then you need some IR's to work with. PMI has released their Impulses as a free download so that people using the Gold Bundle pianos in other platforms can use the IR's and special sounds. Download the impulses from our website: PMI IR's+Pedal sounds.
Now you have to experiment in your host setup how to configure the sampler to play piano on two seperate instances; one that plays when you have no sustain pedal down (midi cc=64, pedal up is value 1) and one that plays when the pedal is down (midi cc64=65 or higher, usually 127). You have to route that last instance to the convolution plug-in and compensate for any delays between the two sampler instances.
Some Convolution Reverb demos have also been added to our PMI demo page