Wish for oversampling/downsampling modules

I wish Reaktor had these. I'd like to double or quadruple the sample rate in an instrument internally, only for a part of the whole stuff going on, not globally like you can do now. I don't ask for fancy stuff like sample rate converting between non-integer ratios. Just a module that does 2x, 4x, maybe 8x oversampling, and a complementary module that does 1/2, 1/4, 1/8 downsampling.

This would be very useful for good sounding EQs in Reaktor. If you've ever tried it, the high shelf and peak EQ at high frequencies sound much sweeter with 176.4 kHz than with 44.1 khz. But if you run complicated ensembles all at that sample rate, well, it eats LOTS of CPU.

Tammo

 

Gets my vote.

 

...or the ability to set sample-rate at the instrument level for starters, that one should be a lot simpler to implement (hence more likely to get done).

 

This would be nice, yes, but I have to say it is certainly not something that you can just slap in there. I wouldn't expect to see it anytime soon, if ever in Reaktor. It would be nice if Reaktor had a poly~ equivalent though.

 

What does this do? What's the purpose? I would think that temporarily bumping up a sample rate would be ineffective if the final, smaller sample rate wouldn't be able to maintain or fully support the sound from the higher sr.

I've never heard of this and am curious.

 

if you want to hear for yourself, do the following:

create yourself an ensemble that has a high shelf EQ set at, say, 12 kHz.

Load reaktor as a plugin into your host of choice.
Play a 44.1 khZ wave through the ensemble.
Set the ensemble's sample rate to 44.1 kHz.
Boost 8 dB or so on the high shelf EQ.
Listen.
Set the ensemble's sample rate to 176.4 kHz.
Listen again. Hear the difference?

In this example reaktor does oversampling and downsampling on the ensemble level - since it is as a plugin fed audio at 44.1 regardless of what you set the internal sample rate.

But the EQ will sound much harsher and grainy when Reaktor works internally with 44.1 too. If Reaktor works internally with the higher sample rate, the EQ sounds a lot sweeter on the top end.

This is true for the Peak EQ modules too.

Tammo

 

It's sort like why most digital mixers (and Reaktor) work with 32-bit depth internally even though they output at 16-bit.

- CList

 

boogie, thanks for the tip. Adding another trick to me arsenal. Now to go try it.