I saw a few libs on the sister site that have been minified (ie: stripped off of some mics and/or having a reduced bitrate).

I have many libs that I would be more than happy to remove some mics but I have no clue where/how to start:

A good soul would be willing to write a HowTo with all the steps to do just that?

 

I'll be doing one soon!

 

i would love such a tutorial, this would help me a lot with my Kontakt libraries

 

yeah... would b nice to see that tutorial and do own minify..... a lot of minify....

 

You probably don't need it, but hit me if you want some help. I've quite some experience.

 

Awesome!

 

Many of the cut-down libraries seem to delete all the 24bit versions and leave the 16bit equivalents, which cuts back as much as 60% in some libraries.

I really wanted to be silly and say the fastest way to minimise any Kontakt library is to delete it, but some people may not see the humour in that.

 

What humor? It's the way I do it . Is there other way?

 

This would be so helpful!

I'd be very grateful if you do

 

Well, there are many steps to the procedure.
Some, depends on the library and some are standard.
- I usually extract the .wav files doing a "Collect samples/Batch compress" from Kontakt.
- I check the instrument groups to see what samples are used for what mics. This can be difficult or not, depending on the library's developer.
- I move all the samples that I don't need to another directory.
- Then I convert the remaining, useful ones with a program of mine (KataLib) to 16bit, and if they're at a sampling frequency higher than 48khz, to their half (The conversion from 96khz to 44.1khz is best avoided because it produces mathematical errors. Halving is much better).
- After that I use some python scripting to copy empty samples with the names of the ones I didn't use, next to the converted ones.
- Some libraries require editing of their scripts, to add/change some GUI elements and/or functionality.
- Another tedious step is to open every single instrument/multi and resave it with new mic and reverb settings.
- I then resave the library from Kontakt using the "Collect samples/Batch compress" option.

 

Thats what I used to do, resampling to half. But it messes up every sample with loop, offset start and other features. Dont recommend it.

Cool trick. Must save time in the final instrument resave.

 

Never encounter a problem like this.
From what you describe, it looks like your conversion program did the conversion but did not change the "Sample Frequency" at the headers of the converted files.
Its the only way to change the duration of the samples and produce the problems you see..

 

It's very much interesting how you've never had this issue. To store loop points, Kontakt uses the loop start sample number and the loop end sample number. When you change the sample rate, Kontakt still stores the numbers defined earlier, thereby messing up the loop points and causing clicks and pops. You'd then have to go in and adjust the loop points of each individual sample.
Also, I haven't encountered any library with 96kHz samples yet. Can you give me some examples?

EDIT: Your conversion utility seems interesting. I'll try it out the next time around.

 

Last edited: Jul 15, 2021

Well, you're right.. I stand corrected.

I've seen a couple, but they shouldn't have loops in them, because I didn't hear any problems.
Its been a long time though, and I don't remember which they were..

 

Some 8Dio I think Lacrimosa is one of them.

 

Does it Dithering when converting to 16bit with KataLib?

 

I use FFMPEG and I think that the default dithering is "rectangular" with"dither_scale" at 1.

 

You can use Voxengo r8brain for batch converting and resampling, it also has dithering