Sample compression
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Pretty sure Kontakt uncompresses to a temp file as it loads banks, thats why loading is not particularly fast on Kontakt, I could well be wrong on this though.
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Ah that's interesting
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Are you sure about this? This sounds like cheating :)
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What sort of CPU hit will I get using FLAC instead of WAV?
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Factor 10. Makes no fun. It also seams to use a global state so decompressing multiple files simultaneous brings an extra hit.
But I am thinking of writing a custom compression format in the not so distant future. Monophonic instrument samples do have lots of redundancy and I think an algorithm that takes this special type of material into account can beat a general purpose codec like FLAC...
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That would be great. I've built a small patch with FLAC samples and didn't notice a performance hit but it didn't have any scripting and only one articulation, I wouldn't like to risk it on a larger instrument.
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You can simply convert all your samples to FLAC, copy the HISE patch into Sublime, replace
.wavwith.flacand reimport that into HISE to compare the performance. -
That's clever! I'll give it a go
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Did you maybe try this out with a larger instrument? Interested to see how it compares in performance
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@Dorian : I wrote a custom audio codec that outperforms FLAC by a factor of 10 - see: http://178.62.82.76:4567/topic/236/hise-lossless-audio-codec-is-ready
It doesn't compress as good as FLAC (you can expect the file size to be reduced to 45% instead of 25%), but it has hardly any overhead compared to uncompressed files.
FLAC in it's current form is not suitable for streaming multiple voices (it allows ~70 voices to be decoded in realtime on my system vs. 700 uncompressed / HLAC compressed voices)
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this looks great
