" UltraRes " -vs- " Standard " ..... does it matter for *very short* IR's (?)

[ben ifin]

Hi all !

If Im using an IR that is say only 5ms <-> 10ms in length, does making it "UltraRes" as opposed to "Standard" make any difference to its audio quality (?)

Thanks,
Ben

 

[jaza69]

I think the only difference is the length, so no.

 

[ben ifin]

Thanks

 

[axifist]

I'm not sure how UltraRes works exactly, but I'm pretty sure Cliff uses some tricks to achieve that IR length with that low processing power.

So my recommendation: Use "Standard", because that way you definitely get the most / all out of the IR.

But I'm also pretty sure you won't hear any difference.

 

[DJD100]

Ultra-Rez uses lower sample rate/decimation filtered audio for the tail portion of the longer IR's, there by lowering DSP processing needs, and allowing the longer tail/reflections to primarily effect the low-end up into the mid-range only.

https://dspguru.com/dsp/faqs/multirate/decimation/#:~:text=Loosely speaking, “decimation” is,without the lowpass filtering operation.

 

[Greg Ferguson]

I look at it this way: In a band situation nobody will be able to tell whether you're at UltraRes or Normal because there's so much else going on. If you're playing in a solo situation or recording then it might be an audible difference to you, but the average listener won't notice.

So, if you're inclined and have CPU to spare use UltraRes, but it's a subtle difference otherwise use Normal and don't sweat it.

 

[DTS]

UltraRes adds more low end and so far I tend to cut it anyway, so for me standard is the way to go.

 

[Chris Naish]

IMHO - when I was still running 3.03 beta (which was still ARES modeling), I could hear a pretty noticeable difference when comparing Standard to UltraRes IR's.

Now that I'm running 4.00 beta 5, I've found that Cygnus modeling has made any desire I had to use UltraRes obsolete. I hear absolutely zero difference when comparing Standard to UltraRes now. Not worth the extra ~5% CPU usage per IR, for me.

Hope this helps.

 

[Brian Johnston]

I must be the only one who kicks it in every time, lol. I find the tone clearer and lively with hi-res. Maybe it's because I'm such a fantastic player that the nuances pop better